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  3. 💬 Various bootloader files based on Optiboot 6.2

💬 Various bootloader files based on Optiboot 6.2

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  • mar.conteM mar.conte

    @alexsh1
    I have only voltmeter extec, can i mesure ua?
    Can you send simple sketch for deep sleep ?

    S Offline
    S Offline
    Samuel235
    Hardware Contributor
    wrote on last edited by
    #146

    @mar.conte - Are you basically saying that your hardware is using too much power to enable you to run on battery for any substantial time?

    MySensors 2.1.1
    Controller - OpenHAB (Virtual Machine)
    Gateway - Arduino Mega MQTT Gateway W5100

    mar.conteM 1 Reply Last reply
    0
    • S Samuel235

      @mar.conte - Are you basically saying that your hardware is using too much power to enable you to run on battery for any substantial time?

      mar.conteM Offline
      mar.conteM Offline
      mar.conte
      wrote on last edited by
      #147

      @Samuel235
      Yes, i want obtain few micro amp but its two month wich i try without result.....

      M.C.

      tonnerre33T 1 Reply Last reply
      0
      • mar.conteM mar.conte

        @Samuel235
        Yes, i want obtain few micro amp but its two month wich i try without result.....

        tonnerre33T Offline
        tonnerre33T Offline
        tonnerre33
        Hardware Contributor
        wrote on last edited by tonnerre33
        #148

        @mar.conte Which skecth did you use ?
        Did you have radio errors in your log ?

        1 Reply Last reply
        0
        • S Offline
          S Offline
          Samuel235
          Hardware Contributor
          wrote on last edited by
          #149

          Could you please either include your sketch here or give us a link to the example sketch that you used please.

          MySensors 2.1.1
          Controller - OpenHAB (Virtual Machine)
          Gateway - Arduino Mega MQTT Gateway W5100

          mar.conteM 1 Reply Last reply
          0
          • S Samuel235

            Could you please either include your sketch here or give us a link to the example sketch that you used please.

            mar.conteM Offline
            mar.conteM Offline
            mar.conte
            wrote on last edited by mar.conte
            #150

            @Samuel235
            Resolved
            I have try with sketc j gammon https://www.gammon.com.au/forum/?id=11497
            And the problem are pir input (model hrc-501)
            Are ever high and the cpu dont go in sleep.
            I have remove pir and all ok the atmega run 20 uah very good.
            Can you advise a good pir wich run to 3,3 V for my project?
            Tanks

            M.C.

            mar.conteM 1 Reply Last reply
            0
            • mar.conteM mar.conte

              @Samuel235
              Resolved
              I have try with sketc j gammon https://www.gammon.com.au/forum/?id=11497
              And the problem are pir input (model hrc-501)
              Are ever high and the cpu dont go in sleep.
              I have remove pir and all ok the atmega run 20 uah very good.
              Can you advise a good pir wich run to 3,3 V for my project?
              Tanks

              mar.conteM Offline
              mar.conteM Offline
              mar.conte
              wrote on last edited by mar.conte
              #151

              @mar.conte
              im not sure why pir with simple test like this http://playground.arduino.cc/Code/PIRsense is ok
              but with my sketch the cpu reset forever

              
              #include <Arduino.h>            // assumes Arduino IDE v1.0 or greater
              #include <avr/sleep.h>
              #include <avr/wdt.h>
              #include <avr/power.h>
              #include <avr/io.h>
                          
              
              
              ISR (PCINT2_vect)
              {
                // handle pin change interrupt for D0 to D7 here
              }  // end of PCINT2_vect
              
              
              
              const unsigned long WAIT_TIME = 4000;
              
              
               const byte  LED =8 ;
               
               const byte  LED2 =9 ;
              int  wakepin =3 ;
                unsigned long lastSleep;
              
              
              
              volatile boolean motionDetected=false;
              float batteryVolts = 5;
              char BATstr[10]; //longest battery voltage reading message = 9chars
              char sendBuf[32];
              byte sendLen;
              void checkBattery(void);
              
              #include <RFM69.h>    //get it here: https://www.github.com/lowpowerlab/rfm69
              #include <SPI.h>
              
              //*********************************************************************************************
              // *********** IMPORTANT SETTINGS - YOU MUST CHANGE/ONFIGURE TO FIT YOUR HARDWARE *************
              //*********************************************************************************************
              #define NETWORKID     100  // The same on all nodes that talk to each other
              #define NODEID        2    // The unique identifier of this node
              #define RECEIVER      1    // The recipient of packets
              
              //Match frequency to the hardware version of the radio on your Feather
              //#define FREQUENCY     RF69_433MHZ
              //#define FREQUENCY     RF69_868MHZ
              #define FREQUENCY     RF69_868MHZ
              #define ENCRYPTKEY    "sampleEncryptKey" //exactly the same 16 characters/bytes on all nodes!
              #define IS_RFM69HW   true // set to 'true' if you are using an RFM69HCW module
              
              //*********************************************************************************************
              #define SERIAL_BAUD   115200
              
              #define RFM69_CS      10
              #define RFM69_IRQ     2
              #define RFM69_IRQN    0  // Pin 2 is IRQ 0!
              #define RFM69_RST     9
              
              
              
              
              int16_t packetnum = 0;  // packet counter, we increment per xmission
              
              RFM69 radio = RFM69(RFM69_CS, RFM69_IRQ, IS_RFM69HW, RFM69_IRQN);  
              
              void setup () {
              
              
              
               
                pinMode (wakepin,INPUT);
                  pinMode(LED, OUTPUT);
                   pinMode(LED2, OUTPUT);
                     digitalWrite(wakepin,HIGH);
                 
                
                char buff[50];
               
                Serial.begin(SERIAL_BAUD);
              
                Serial.println("Arduino RFM69HCW Transmitter");
                
                // Hard Reset the RFM module
                pinMode(RFM69_RST, OUTPUT);
                digitalWrite(RFM69_RST, HIGH);
                delay(100);
                digitalWrite(RFM69_RST, LOW);
                delay(100);
              
                // Initialize radio
                radio.initialize(FREQUENCY,NODEID,NETWORKID);
                if (IS_RFM69HW) {
                  radio.setHighPower();    // Only for RFM69HCW & HW!
                }
                radio.setPowerLevel(31); // power output ranges from 0 (5dBm) to 31 (20dBm)
                
                radio.encrypt(ENCRYPTKEY);
                
                pinMode(LED, OUTPUT);
                Serial.print("\nTransmitting at ");
                Serial.print(FREQUENCY==RF69_433MHZ ? 433 : FREQUENCY==RF69_868MHZ ? 868 : 915);
                Serial.println(" MHz");
              
               }
              
              
              
              
              uint16_t batteryReportCycles=0;
              
              
              
              void loop () 
              { 
                  
                 //rf();
              
              
                sleepNow();
                 rf();
                  
               //radio.sleep();
                 
                              // sleep function called here 
              
              
               radio.sleep();
              }
              
              
              
              void wake ()
              {
              
               // cancel sleep as a precaution
                //sleep_disable();
                // precautionary while we do other stuff
               detachInterrupt (1);
              }  // end of wake
              
              void sleepNow()
              
              {
              
                 if (millis () - lastSleep >= WAIT_TIME)
                {
                  lastSleep = millis ();
              
              
                  byte old_ADCSRA = ADCSRA;
                  // disable ADC
                  ADCSRA = 0;  
                  // pin change interrupt (example for D0)
                  PCMSK2 |= bit (PCINT16); // want pin 0
                  PCIFR  |= bit (PCIF2);   // clear any outstanding interrupts
                  PCICR  |= bit (PCIE2);   // enable pin change interrupts for D0 to D7
              
                  set_sleep_mode (SLEEP_MODE_PWR_DOWN);
                
                  power_adc_disable();
                  power_spi_disable();
                  power_timer0_disable();
                  power_timer1_disable();
                  power_timer2_disable();
                  power_twi_disable();
                //PORTB = 0x00;
                  UCSR0B &= ~bit (RXEN0);  // disable receiver
                  UCSR0B &= ~bit (TXEN0);  // disable transmitter
              
                  sleep_enable();
                  
                  noInterrupts ();
                attachInterrupt (1, wake,HIGH);
                  digitalWrite (LED, LOW);
               
                interrupts ();
                  sleep_cpu ();      
                 digitalWrite (LED, HIGH);
              
                  sleep_disable();
                  power_all_enable();
               
                  ADCSRA = old_ADCSRA;
                  PCICR  &= ~bit (PCIE2);   // disable pin change interrupts for D0 to D7
                  UCSR0B |= bit (RXEN0);  // enable receiver
                  UCSR0B |= bit (TXEN0);  // enable transmitter
              
                }  // end of time to sleep
                 
               
              }
              
              void rf()
              {
               char radiopacket[20] = "Hello World #";
                itoa(packetnum++, radiopacket+13, 10);
                Serial.print("Sending "); Serial.println(radiopacket);
                  
                if (!radio.sendWithRetry(RECEIVER, radiopacket, strlen(radiopacket))) { //target node Id, message as string or byte array, message length
                  Serial.println("OK");
              
                }
              
                radio.receiveDone(); //put radio in RX mode
                Serial.flush(); //make sure all serial data is clocked out before sleeping the MCU
                
                
              
              
               }
              

              M.C.

              1 Reply Last reply
              0
              • S Offline
                S Offline
                Samuel235
                Hardware Contributor
                wrote on last edited by
                #152

                Firstly, i can't read the structure the way you have posted your sketch. You should use the code function in the reply, the icon looks like "</>" above where you make your reply. Put your code in there for us to have any chance of reading it at all.

                Secondly, I don't think that this is the place to be posting this issue. For a start, this isn't an issue relevant to the bootloader in this thread and secondly, it doesn't even have anything to do with MySensors.

                MySensors 2.1.1
                Controller - OpenHAB (Virtual Machine)
                Gateway - Arduino Mega MQTT Gateway W5100

                mar.conteM 1 Reply Last reply
                1
                • mar.conteM mar.conte

                  @alexsh1
                  I have only voltmeter extec, can i mesure ua?
                  Can you send simple sketch for deep sleep ?

                  alexsh1A Offline
                  alexsh1A Offline
                  alexsh1
                  wrote on last edited by
                  #153

                  @mar.conte yes, you can measure consumption (should be in uA) while sleeping with a good voltmeter.

                  However, I really fail to understand what has Nick's sketch you mentioned to do with MySensors? I suppose some people here may be aware of sleeping issues, but again your problem has nothing to do with MySensors.

                  Please see the following - it may help you troubleshoot your issue
                  https://www.mysensors.org/build/battery

                  1 Reply Last reply
                  2
                  • S Samuel235

                    Firstly, i can't read the structure the way you have posted your sketch. You should use the code function in the reply, the icon looks like "</>" above where you make your reply. Put your code in there for us to have any chance of reading it at all.

                    Secondly, I don't think that this is the place to be posting this issue. For a start, this isn't an issue relevant to the bootloader in this thread and secondly, it doesn't even have anything to do with MySensors.

                    mar.conteM Offline
                    mar.conteM Offline
                    mar.conte
                    wrote on last edited by
                    #154

                    @Samuel235
                    I wanted to build my projects with mysensors, first of all I started with bootloader found in this section to try them with examples that I know because I do not know yet mysensors, I wanted to learn it so I took the liberty to insert code in your section. if you can figure out my problem thank you or I apologize for the trouble thanks

                    M.C.

                    1 Reply Last reply
                    0
                    • S Offline
                      S Offline
                      Samuel235
                      Hardware Contributor
                      wrote on last edited by
                      #155

                      I get why you done it, but i don't understand why. You don't need to 'know' mysensors.... There is a getting started page, i suggest you take a few hours and read through everything. I'm not helping with an issue that is completely not related to mysensors while on the mysensors forum. Just simply for future readers of this thread that come here to solve their issue, if this thread is bloated out with over 10/20 replies that is not related to the question at hand its much harder for them to find their resolution here. I suggest contacting the author of the code himself as i'm pretty sure that your issue is not the bootloader.

                      MySensors 2.1.1
                      Controller - OpenHAB (Virtual Machine)
                      Gateway - Arduino Mega MQTT Gateway W5100

                      mar.conteM 1 Reply Last reply
                      0
                      • S Samuel235

                        I get why you done it, but i don't understand why. You don't need to 'know' mysensors.... There is a getting started page, i suggest you take a few hours and read through everything. I'm not helping with an issue that is completely not related to mysensors while on the mysensors forum. Just simply for future readers of this thread that come here to solve their issue, if this thread is bloated out with over 10/20 replies that is not related to the question at hand its much harder for them to find their resolution here. I suggest contacting the author of the code himself as i'm pretty sure that your issue is not the bootloader.

                        mar.conteM Offline
                        mar.conteM Offline
                        mar.conte
                        wrote on last edited by
                        #156

                        @Samuel235

                        Thanks anyway, this section introduced me to some very interesting bootloader, at least with these bootloader I can get a few microamperes for my projects, I will take note of your good day and thank you tips

                        M.C.

                        1 Reply Last reply
                        0
                        • siodS Offline
                          siodS Offline
                          siod
                          wrote on last edited by
                          #157

                          Hi guys,

                          I am getting an errror when trying to burn the bootloader, any idea what´s wrong? Im using Arduino IDE 1.6.10 and these settings:
                          0_1495966865551_upload-48973443-91a2-4504-a73b-96557383d6bf

                          and that´s the error:

                          avrdude: Version 6.3, compiled on Jun 22 2016 at 16:05:21
                                   Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
                                   Copyright (c) 2007-2014 Joerg Wunsch
                          
                                   System wide configuration file is "T:\Programme\Arduino 1.6.10\hardware\tools\avr/etc/avrdude.conf"
                          
                                   Using Port                    : COM10
                                   Using Programmer              : stk500v1
                                   Overriding Baud Rate          : 19200
                                   AVR Part                      : ATmega328P
                                   Chip Erase delay              : 9000 us
                                   PAGEL                         : PD7
                                   BS2                           : PC2
                                   RESET disposition             : dedicated
                                   RETRY pulse                   : SCK
                                   serial program mode           : yes
                                   parallel program mode         : yes
                                   Timeout                       : 200
                                   StabDelay                     : 100
                                   CmdexeDelay                   : 25
                                   SyncLoops                     : 32
                                   ByteDelay                     : 0
                                   PollIndex                     : 3
                                   PollValue                     : 0x53
                                   Memory Detail                 :
                          
                                                            Block Poll               Page                       Polled
                                     Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
                                     ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
                                     eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
                                     flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
                                     lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                     hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                     efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                     lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                     calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
                                     signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00
                          
                                   Programmer Type : STK500
                                   Description     : Atmel STK500 Version 1.x firmware
                                   Hardware Version: 2
                                   Firmware Version: 1.18
                                   Topcard         : Unknown
                                   Vtarget         : 0.0 V
                                   Varef           : 0.0 V
                                   Oscillator      : Off
                                   SCK period      : 0.1 us
                          
                          avrdude: AVR device initialized and ready to accept instructions
                          
                          Reading | ################################################## | 100% 0.06s
                          
                          avrdude: Device signature = 0x1e950f (probably m328p)
                          avrdude: erasing chip
                          avrdude: reading input file "0x3F"
                          avrdude: writing lock (1 bytes):
                          
                          Writing | ################################################## | 100% 0.03s
                          
                          avrdude: 1 bytes of lock written
                          avrdude: verifying lock memory against 0x3F:
                          avrdude: load data lock data from input file 0x3F:
                          avrdude: input file 0x3F contains 1 bytes
                          avrdude: reading on-chip lock data:
                          
                          Reading | ################################################## | 100% 0.02s
                          
                          avrdude: verifying ...
                          avrdude: 1 bytes of lock verified
                          avrdude: reading input file "0x06"
                          avrdude: writing efuse (1 bytes):
                          
                          Writing |  ***failed;  
                          ################################################## | 100% 0.16s
                          
                          avrdude: 1 bytes of efuse written
                          avrdude: verifying efuse memory against 0x06:
                          avrdude: load data efuse data from input file 0x06:
                          avrdude: input file 0x06 contains 1 bytes
                          avrdude: reading on-chip efuse data:
                          
                          Fehler beim Brennen des Bootloaders.
                          Reading | ################################################## | 100% 0.02s
                          
                          avrdude: verifying ...
                          avrdude: verification error, first mismatch at byte 0x0000
                                   0xfe != 0x06
                          avrdude: verification error; content mismatch
                          
                          avrdude done.  Thank you.
                          

                          still learning...

                          alexsh1A 1 Reply Last reply
                          0
                          • siodS siod

                            Hi guys,

                            I am getting an errror when trying to burn the bootloader, any idea what´s wrong? Im using Arduino IDE 1.6.10 and these settings:
                            0_1495966865551_upload-48973443-91a2-4504-a73b-96557383d6bf

                            and that´s the error:

                            avrdude: Version 6.3, compiled on Jun 22 2016 at 16:05:21
                                     Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
                                     Copyright (c) 2007-2014 Joerg Wunsch
                            
                                     System wide configuration file is "T:\Programme\Arduino 1.6.10\hardware\tools\avr/etc/avrdude.conf"
                            
                                     Using Port                    : COM10
                                     Using Programmer              : stk500v1
                                     Overriding Baud Rate          : 19200
                                     AVR Part                      : ATmega328P
                                     Chip Erase delay              : 9000 us
                                     PAGEL                         : PD7
                                     BS2                           : PC2
                                     RESET disposition             : dedicated
                                     RETRY pulse                   : SCK
                                     serial program mode           : yes
                                     parallel program mode         : yes
                                     Timeout                       : 200
                                     StabDelay                     : 100
                                     CmdexeDelay                   : 25
                                     SyncLoops                     : 32
                                     ByteDelay                     : 0
                                     PollIndex                     : 3
                                     PollValue                     : 0x53
                                     Memory Detail                 :
                            
                                                              Block Poll               Page                       Polled
                                       Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW  MaxW   ReadBack
                                       ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
                                       eeprom        65    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
                                       flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
                                       lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                       hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                       efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                       lock           0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
                                       calibration    0     0     0    0 no          1    0      0     0     0 0x00 0x00
                                       signature      0     0     0    0 no          3    0      0     0     0 0x00 0x00
                            
                                     Programmer Type : STK500
                                     Description     : Atmel STK500 Version 1.x firmware
                                     Hardware Version: 2
                                     Firmware Version: 1.18
                                     Topcard         : Unknown
                                     Vtarget         : 0.0 V
                                     Varef           : 0.0 V
                                     Oscillator      : Off
                                     SCK period      : 0.1 us
                            
                            avrdude: AVR device initialized and ready to accept instructions
                            
                            Reading | ################################################## | 100% 0.06s
                            
                            avrdude: Device signature = 0x1e950f (probably m328p)
                            avrdude: erasing chip
                            avrdude: reading input file "0x3F"
                            avrdude: writing lock (1 bytes):
                            
                            Writing | ################################################## | 100% 0.03s
                            
                            avrdude: 1 bytes of lock written
                            avrdude: verifying lock memory against 0x3F:
                            avrdude: load data lock data from input file 0x3F:
                            avrdude: input file 0x3F contains 1 bytes
                            avrdude: reading on-chip lock data:
                            
                            Reading | ################################################## | 100% 0.02s
                            
                            avrdude: verifying ...
                            avrdude: 1 bytes of lock verified
                            avrdude: reading input file "0x06"
                            avrdude: writing efuse (1 bytes):
                            
                            Writing |  ***failed;  
                            ################################################## | 100% 0.16s
                            
                            avrdude: 1 bytes of efuse written
                            avrdude: verifying efuse memory against 0x06:
                            avrdude: load data efuse data from input file 0x06:
                            avrdude: input file 0x06 contains 1 bytes
                            avrdude: reading on-chip efuse data:
                            
                            Fehler beim Brennen des Bootloaders.
                            Reading | ################################################## | 100% 0.02s
                            
                            avrdude: verifying ...
                            avrdude: verification error, first mismatch at byte 0x0000
                                     0xfe != 0x06
                            avrdude: verification error; content mismatch
                            
                            avrdude done.  Thank you.
                            
                            alexsh1A Offline
                            alexsh1A Offline
                            alexsh1
                            wrote on last edited by alexsh1
                            #158

                            @siod what board are you using? Windows or Mac?
                            I would suggest update Arduino IDE - you are running an old version

                            Many people experience similar issues when using a wrong version of IDE:

                            https://forum.arduino.cc/index.php?topic=431294.0

                            1 Reply Last reply
                            0
                            • GertSandersG Offline
                              GertSandersG Offline
                              GertSanders
                              Hardware Contributor
                              wrote on last edited by
                              #159

                              I have been using version 1.8.x (at 1.8.2 now) for quite a while now, so no experience with 1.6.10

                              Best is indeed to update the IDE, as this will also bring new versions of GCC (the compiler) and I thought also of AVRDUDE (transfertool). Not sure about that last bit though.

                              Gert

                              1 Reply Last reply
                              0
                              • siodS Offline
                                siodS Offline
                                siod
                                wrote on last edited by
                                #160

                                Hi guys,

                                thx for your quick reply. I could upload the bootloader using ver 1.6.5 of the Arduino IDE. After that I realized ther is already a 1.8.2 version released which is closing the gaps between arduino.cc and arduino.org.
                                I havent tested this version now, but I guess it was just an IDE error, so everything´s fine now...

                                still learning...

                                1 Reply Last reply
                                0
                                • M Offline
                                  M Offline
                                  martim
                                  wrote on last edited by
                                  #161

                                  I have copy the file over the existing files and then I get this error with burning:

                                  java.io.IOException: Cannot run program "{runtime.tools.avrdude.path}/bin/avrdude": CreateProcess error=2, The system cannot find the file specified

                                  I am using Arduino IDE 1.8.2

                                  1 Reply Last reply
                                  0
                                  • A Offline
                                    A Offline
                                    aclertant
                                    wrote on last edited by
                                    #162

                                    I'm probably a rare case but I successfully burn the bootloader (atmel 328p stand alone with slimeNode board) using atmel studio7 with an AVRMK2ISP, flash the mySensors code using arduino IDE and the "nodeManager" libraries succesfully too and everythings appear properly in my HomeAssistant, very nice, I've just give a paypal tips ;o)

                                    But I have no idea why I use this bootloader ??? If I used a nano, I wont change the bootloader ? Is there something better ? It could look stupid but their is no real explain about WHY I must change my bootloader on this page...

                                    1 Reply Last reply
                                    0
                                    • R Offline
                                      R Offline
                                      Rolo6442u
                                      wrote on last edited by Rolo6442u
                                      #163

                                      Found these bootloaders and using the 1MHz for some low power experiments. I did get this error message when burning the bootloader (using USBASP programmer) :
                                      "avrdude: WARNING: invalid value for unused bits in fuse "efuse", should be set to 1 according to datasheet
                                      This behaviour is deprecated and will result in an error in future version
                                      You probably want to use 0xfd instead of 0x05 (double check with your datasheet first)."

                                      The bootloader woas succesfully burned so the message was informational. I did look into this and made the following changes in boards.txt :
                                      I changed all the lines containing "......bootloader.extended_fuses="
                                      There are multiples sections in the file that have these lines.

                                      old value -> new value
                                      0x04 0xFC
                                      0x05 0xFD
                                      0x06 0xFE
                                      0x07 0xFF

                                      I used this site link text
                                      for calculating the new values for the extended fuse.
                                      Now the error message is gone. Maybe this is of any help when using these bootloaders.

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                                      • GertSandersG GertSanders

                                        @carlierd

                                        I can probably package this in a directory structure you could add to the Hardware folder in the Arduino files, but I do not have the time for it right now. I know that has been done for the original Optiboot 6.2 files already (including a pinout file for the various processor variants):
                                        https://github.com/Optiboot/optiboot

                                        For the moment I have added my boards.txt file as I use it in my Arduino IDE (common), it shows some fuse settings, but you are right: a document describing the fuse settings to use, and their effect on a bootloader would be a nice reference for many people.

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                                        aramko aramko
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                                        wrote on last edited by mfalkvidd
                                        #164
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