Skip to content
  • MySensors
  • OpenHardware.io
  • Categories
  • Recent
  • Tags
  • Popular
Skins
  • Light
  • Brite
  • Cerulean
  • Cosmo
  • Flatly
  • Journal
  • Litera
  • Lumen
  • Lux
  • Materia
  • Minty
  • Morph
  • Pulse
  • Sandstone
  • Simplex
  • Sketchy
  • Spacelab
  • United
  • Yeti
  • Zephyr
  • Dark
  • Cyborg
  • Darkly
  • Quartz
  • Slate
  • Solar
  • Superhero
  • Vapor

  • Default (No Skin)
  • No Skin
Collapse
Brand Logo
  1. Home
  2. OpenHardware.io
  3. 💬 Sensebender Micro

💬 Sensebender Micro

Scheduled Pinned Locked Moved OpenHardware.io
temperatureatmega328atsha204ahumidityflashmysensors
116 Posts 42 Posters 26.6k Views 38 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • tbowmoT Offline
    tbowmoT Offline
    tbowmo
    Admin
    wrote on last edited by
    #88

    @joaoabs

    Could you post a link to the code from slimnode?

    1 Reply Last reply
    0
    • joaoabsJ Offline
      joaoabsJ Offline
      joaoabs
      wrote on last edited by joaoabs
      #89

      Hi,

      The slimnode original thread has a few (not sure anymore which example I'm using now because the thread is huge and I've lost track of it)
      Here is one example:
      https://forum.mysensors.org/topic/2067/my-slim-2aa-battery-node/306

      and other:
      https://forum.mysensors.org/topic/2067/my-slim-2aa-battery-node/116

      1 Reply Last reply
      0
      • tbowmoT Offline
        tbowmoT Offline
        tbowmo
        Admin
        wrote on last edited by tbowmo
        #90

        @joaoabs

        The library use the exact same method to read VCC, as the Sensebender Micro example. It's just the functions that is extracted into a library (which I think have been done by @Yveaux )

        1 Reply Last reply
        0
        • tbowmoT tbowmo

          Unless the bootloader is reprogrammed, then it defaults to 8mhz, and you have to actively set registers to run at 1mhz in your sketch.

          Do you have a ISP programmer? If yes, could you make a memory dump, and send it to me?

          N Offline
          N Offline
          NailMan
          wrote on last edited by
          #91

          @tbowmo
          I apologize for the delay in replying, I was very busy with work.

          It turned out to be some mystical incompatibility of the FTDI and Sensbender Micro or a device based on its loader. Three versions of my FTDI refused to work with Sensbender Micro, but they worked with regular Arduino, and the fourth one, bought on AliExpress, works perfectly normal. Externally, all the same, only those that do not work with Sensbender Micro, the labeling of the chip differs slightly in the quality of engraving on the plastic.

          Maybe it's fake or some kind of non-standard chips.

          alexsh1A 1 Reply Last reply
          0
          • N NailMan

            @tbowmo
            I apologize for the delay in replying, I was very busy with work.

            It turned out to be some mystical incompatibility of the FTDI and Sensbender Micro or a device based on its loader. Three versions of my FTDI refused to work with Sensbender Micro, but they worked with regular Arduino, and the fourth one, bought on AliExpress, works perfectly normal. Externally, all the same, only those that do not work with Sensbender Micro, the labeling of the chip differs slightly in the quality of engraving on the plastic.

            Maybe it's fake or some kind of non-standard chips.

            alexsh1A Offline
            alexsh1A Offline
            alexsh1
            wrote on last edited by
            #92

            @nailman There are a lot of fake FTDI modules. Some are labelled FTDI other claim to be FTDI but are CH340. Some have DTR others RST and good ones like Adafruit Friend it is selectable.

            My recommendation is do not try to save a few bucks here. Spend money on a good quality FTDI adapter like Adafruit Friend.

            1 Reply Last reply
            0
            • F Offline
              F Offline
              flybysun
              wrote on last edited by
              #93

              Hi,
              I'm using the mysensor lib for a while but I recently run into problems. I've some arduino pro minis running with dht22 sensors which send their data over nrf24 to an mqtt ethernet gateway.
              But maybe someone can help me with this one: I have build my own sensebender-micro modules. First of all I programmed the fuses of the mega328p as follows: lfuse: 0xE2, hfuse: 0xD2, efuse: 0xFE. Then I've programmed the DualOptiBoot Bootloader to them, everything worked fine so far, I can upoload sketches from the Arduino IDE via FTDI Programmer. The Problem: When I upload the official example sketch and watch the serial monitor I just see the MySensors splash screen. It seems, that the sketch does not even run into the setup routine. This starts to make me crazy, since I do not even know where to search. If I upload other sketches (basic blinking led, serial port examples or the passive node example from mysensors) it shows that my hardware in general seems to work. When I enable debug this is the output:

               __  __       ____
              |  \/  |_   _/ ___|  ___ _ __  ___  ___  _ __ ___
              | |\/| | | | \___ \ / _ \ `_ \/ __|/ _ \| `__/ __|
              | |  | | |_| |___| |  __/ | | \__ \  _  | |  \__ \
              |_|  |_|\__, |____/ \___|_| |_|___/\___/|_|  |___/
                      |___/                      2.3.0
              
              16 MCO:BGN:INIT NODE,CP=RNONA---,VER=2.3.0
              26 TSM:INIT
              28 TSF:WUR:MS=0
              36 TSM:INIT:TSP OK
              38 TSF:SID:OK,ID=100
              40 TSM:FPAR
              75 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
              2084 !TSM:FPAR:NO REPLY
              2086 TSM:FPAR
              2121 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
              4130 !TSM:FPAR:NO REPLY
              4132 TSM:FPAR
              4167 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
              6176 !TSM:FPAR:NO REPLY
              6178 TSM:FPAR
              6213 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
              8222 !TSM:FPAR:FAIL
              8224 TSM:FAIL:CNT=1
              8226 TSM:FAIL:DIS
              8228 TSF:TDI:TSL
              18229 TSM:FAIL:RE-INIT
              18231 TSM:INIT
              18239 TSM:INIT:TSP OK
              18241 TSF:SID:OK,ID=100
              18243 TSM:FPAR
              18280 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
              20289 !TSM:FPAR:NO REPLY
              

              Even the NRF24 connection seems to work. This is the output of my mosquitto broker when running the passive node example:

              home/OpenMQTTGateway/LWT Online
              home/OpenMQTTGateway/version 0.7
              mygateway1-out/100/255/0/0/17 2.3.0
              mygateway1-out/100/255/3/0/6 255
              mygateway1-out/100/255/3/0/11 Passive node
              mygateway1-out/100/255/3/0/12 1.0
              mygateway1-out/100/0/0/0/6 (null)
              mygateway1-out/100/0/1/0/0 25.70
              mygateway1-out/100/0/1/0/0 26.90
              mygateway1-out/100/0/1/0/0 27.30
              mygateway1-out/100/0/1/0/0 25.80
              mygateway1-out/100/0/1/0/0 26.00
              

              I appreciate any help, thanks in advance!

              Cheers

              mfalkviddM 1 Reply Last reply
              0
              • F flybysun

                Hi,
                I'm using the mysensor lib for a while but I recently run into problems. I've some arduino pro minis running with dht22 sensors which send their data over nrf24 to an mqtt ethernet gateway.
                But maybe someone can help me with this one: I have build my own sensebender-micro modules. First of all I programmed the fuses of the mega328p as follows: lfuse: 0xE2, hfuse: 0xD2, efuse: 0xFE. Then I've programmed the DualOptiBoot Bootloader to them, everything worked fine so far, I can upoload sketches from the Arduino IDE via FTDI Programmer. The Problem: When I upload the official example sketch and watch the serial monitor I just see the MySensors splash screen. It seems, that the sketch does not even run into the setup routine. This starts to make me crazy, since I do not even know where to search. If I upload other sketches (basic blinking led, serial port examples or the passive node example from mysensors) it shows that my hardware in general seems to work. When I enable debug this is the output:

                 __  __       ____
                |  \/  |_   _/ ___|  ___ _ __  ___  ___  _ __ ___
                | |\/| | | | \___ \ / _ \ `_ \/ __|/ _ \| `__/ __|
                | |  | | |_| |___| |  __/ | | \__ \  _  | |  \__ \
                |_|  |_|\__, |____/ \___|_| |_|___/\___/|_|  |___/
                        |___/                      2.3.0
                
                16 MCO:BGN:INIT NODE,CP=RNONA---,VER=2.3.0
                26 TSM:INIT
                28 TSF:WUR:MS=0
                36 TSM:INIT:TSP OK
                38 TSF:SID:OK,ID=100
                40 TSM:FPAR
                75 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
                2084 !TSM:FPAR:NO REPLY
                2086 TSM:FPAR
                2121 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
                4130 !TSM:FPAR:NO REPLY
                4132 TSM:FPAR
                4167 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
                6176 !TSM:FPAR:NO REPLY
                6178 TSM:FPAR
                6213 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
                8222 !TSM:FPAR:FAIL
                8224 TSM:FAIL:CNT=1
                8226 TSM:FAIL:DIS
                8228 TSF:TDI:TSL
                18229 TSM:FAIL:RE-INIT
                18231 TSM:INIT
                18239 TSM:INIT:TSP OK
                18241 TSF:SID:OK,ID=100
                18243 TSM:FPAR
                18280 TSF:MSG:SEND,100-100-255-255,s=255,c=3,t=7,pt=0,l=0,sg=0,ft=0,st=OK:
                20289 !TSM:FPAR:NO REPLY
                

                Even the NRF24 connection seems to work. This is the output of my mosquitto broker when running the passive node example:

                home/OpenMQTTGateway/LWT Online
                home/OpenMQTTGateway/version 0.7
                mygateway1-out/100/255/0/0/17 2.3.0
                mygateway1-out/100/255/3/0/6 255
                mygateway1-out/100/255/3/0/11 Passive node
                mygateway1-out/100/255/3/0/12 1.0
                mygateway1-out/100/0/0/0/6 (null)
                mygateway1-out/100/0/1/0/0 25.70
                mygateway1-out/100/0/1/0/0 26.90
                mygateway1-out/100/0/1/0/0 27.30
                mygateway1-out/100/0/1/0/0 25.80
                mygateway1-out/100/0/1/0/0 26.00
                

                I appreciate any help, thanks in advance!

                Cheers

                mfalkviddM Offline
                mfalkviddM Offline
                mfalkvidd
                Mod
                wrote on last edited by
                #94

                Hi @flybysun, welcome to the forum!

                !TSM:FPAR:NO REPLY

                means that the sensor node does not get a response from the gateway. What type of gateway are you using? Could you post the debug log from it?

                If you haven't already, check https://forum.mysensors.org/topic/666/debug-faq-and-how-ask-for-help/ for the most common problems and how to troubleshoot them. (Hint: Power supply is the most common problem, the nrf24 is extremely picky)

                1 Reply Last reply
                0
                • F Offline
                  F Offline
                  flybysun
                  wrote on last edited by
                  #95

                  Hi @mfalkvidd, thanks for the warm welcome!
                  So, tonight I'll give it another try. I soldered 1000uF above VCC and GND on both the sender and the gateway RF Links (that's all I could find here for now). Still got issues. Here are the logs from my gateway, when it starts up and receives values from my working sensor I had before:

                  0 MCO:BGN:INIT GW,CP=RNNGA---,VER=2.3.0
                  3 TSM:INIT
                  4 TSF:WUR:MS=0
                  11 TSM:INIT:TSP OK
                  12 TSM:INIT:GW MODE
                  14 TSM:READY:ID=0,PAR=0,DIS=0
                  17 MCO:REG:NOT NEEDED
                  580 GWT:TPC:IP=192.168.0.222
                  1583 MCO:BGN:STP
                  1584 MCO:BGN:INIT OK,TSP=1
                  1587 GWT:TPC:IP=192.168.0.222
                  2589 GWT:RMQ:MQTT RECONNECT
                  2797 GWT:RMQ:MQTT CONNECTED
                  2800 GWT:TPS:TOPIC=mygateway1-out/0/255/0/0/18,MSG SENT
                  20587 TSF:MSG:READ,1-1-0,s=0,c=1,t=1,pt=7,l=5,sg=0:32.5
                  20592 GWT:TPS:TOPIC=mygateway1-out/1/0/1/0/1,MSG SENT
                  55353 TSF:MSG:READ,1-1-0,s=1,c=1,t=0,pt=7,l=5,sg=0:27.3
                  55358 GWT:TPS:TOPIC=mygateway1-out/1/1/1/0/0,MSG SENT
                  55364 TSF:MSG:READ,1-1-0,s=0,c=1,t=1,pt=7,l=5,sg=0:32.6
                  55369 GWT:TPS:TOPIC=mygateway1-out/1/0/1/0/1,MSG SENT
                  

                  This looks okay I guess, now this happens when I activate my SenseBender Micro:

                  139854 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                  139859 TSF:MSG:BC
                  139860 TSF:MSG:FPAR REQ,ID=3
                  139864 TSF:PNG:SEND,TO=0
                  139866 TSF:CKU:OK
                  139868 TSF:MSG:GWL OK
                  140512 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                  141940 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                  141945 TSF:MSG:BC
                  141947 TSF:MSG:FPAR REQ,ID=3
                  141949 TSF:CKU:OK,FCTRL
                  141952 TSF:MSG:GWL OK
                  142632 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                  144021 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                  144026 TSF:MSG:BC
                  144028 TSF:MSG:FPAR REQ,ID=3
                  144030 TSF:CKU:OK,FCTRL
                  144033 TSF:MSG:GWL OK
                  144746 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                  146101 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                  146106 TSF:MSG:BC
                  146108 TSF:MSG:FPAR REQ,ID=3
                  146111 TSF:CKU:OK,FCTRL
                  146113 TSF:MSG:GWL OK
                  146857 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                  

                  I filled this logs into the Log Parser and found out that the Gateway receives informations on the sensor node, but when it responses it does not get the ACK from the sensor node.

                  May I have a faulty NRF24? I just received a new batch from AliExpress and this my first try with them.

                  My gateway is an Arduino Uno Board with the Arduino Ethernet shield and on top of that equipped with the long range version of the NRF24 Board (the one with the antenna).
                  The SenseBender is equipped with the "normal" smt version as suggested. The sensor nodes which are working right now were equipped with the smd version of the nrf-board.

                  I also found out that the initialization of the sensor and the gateway has a different Core initialization, different capabilities (CP). I looked through the API, but didn't find what CP=RNNGA or CP=RNONA stands for.

                  Any suggestions or ideas?

                  mfalkviddM 1 Reply Last reply
                  0
                  • F flybysun

                    Hi @mfalkvidd, thanks for the warm welcome!
                    So, tonight I'll give it another try. I soldered 1000uF above VCC and GND on both the sender and the gateway RF Links (that's all I could find here for now). Still got issues. Here are the logs from my gateway, when it starts up and receives values from my working sensor I had before:

                    0 MCO:BGN:INIT GW,CP=RNNGA---,VER=2.3.0
                    3 TSM:INIT
                    4 TSF:WUR:MS=0
                    11 TSM:INIT:TSP OK
                    12 TSM:INIT:GW MODE
                    14 TSM:READY:ID=0,PAR=0,DIS=0
                    17 MCO:REG:NOT NEEDED
                    580 GWT:TPC:IP=192.168.0.222
                    1583 MCO:BGN:STP
                    1584 MCO:BGN:INIT OK,TSP=1
                    1587 GWT:TPC:IP=192.168.0.222
                    2589 GWT:RMQ:MQTT RECONNECT
                    2797 GWT:RMQ:MQTT CONNECTED
                    2800 GWT:TPS:TOPIC=mygateway1-out/0/255/0/0/18,MSG SENT
                    20587 TSF:MSG:READ,1-1-0,s=0,c=1,t=1,pt=7,l=5,sg=0:32.5
                    20592 GWT:TPS:TOPIC=mygateway1-out/1/0/1/0/1,MSG SENT
                    55353 TSF:MSG:READ,1-1-0,s=1,c=1,t=0,pt=7,l=5,sg=0:27.3
                    55358 GWT:TPS:TOPIC=mygateway1-out/1/1/1/0/0,MSG SENT
                    55364 TSF:MSG:READ,1-1-0,s=0,c=1,t=1,pt=7,l=5,sg=0:32.6
                    55369 GWT:TPS:TOPIC=mygateway1-out/1/0/1/0/1,MSG SENT
                    

                    This looks okay I guess, now this happens when I activate my SenseBender Micro:

                    139854 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                    139859 TSF:MSG:BC
                    139860 TSF:MSG:FPAR REQ,ID=3
                    139864 TSF:PNG:SEND,TO=0
                    139866 TSF:CKU:OK
                    139868 TSF:MSG:GWL OK
                    140512 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                    141940 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                    141945 TSF:MSG:BC
                    141947 TSF:MSG:FPAR REQ,ID=3
                    141949 TSF:CKU:OK,FCTRL
                    141952 TSF:MSG:GWL OK
                    142632 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                    144021 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                    144026 TSF:MSG:BC
                    144028 TSF:MSG:FPAR REQ,ID=3
                    144030 TSF:CKU:OK,FCTRL
                    144033 TSF:MSG:GWL OK
                    144746 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                    146101 TSF:MSG:READ,3-3-255,s=255,c=3,t=7,pt=0,l=0,sg=0:
                    146106 TSF:MSG:BC
                    146108 TSF:MSG:FPAR REQ,ID=3
                    146111 TSF:CKU:OK,FCTRL
                    146113 TSF:MSG:GWL OK
                    146857 !TSF:MSG:SEND,0-0-3-3,s=255,c=3,t=8,pt=1,l=1,sg=0,ft=0,st=NACK:0
                    

                    I filled this logs into the Log Parser and found out that the Gateway receives informations on the sensor node, but when it responses it does not get the ACK from the sensor node.

                    May I have a faulty NRF24? I just received a new batch from AliExpress and this my first try with them.

                    My gateway is an Arduino Uno Board with the Arduino Ethernet shield and on top of that equipped with the long range version of the NRF24 Board (the one with the antenna).
                    The SenseBender is equipped with the "normal" smt version as suggested. The sensor nodes which are working right now were equipped with the smd version of the nrf-board.

                    I also found out that the initialization of the sensor and the gateway has a different Core initialization, different capabilities (CP). I looked through the API, but didn't find what CP=RNNGA or CP=RNONA stands for.

                    Any suggestions or ideas?

                    mfalkviddM Offline
                    mfalkviddM Offline
                    mfalkvidd
                    Mod
                    wrote on last edited by
                    #96

                    @flybysun information on capabilites is available at https://forum.mysensors.org/topic/7718/mysensors-capabilities-deciphering and https://www.mysensors.org/apidocs/group__MyCapabilities.html

                    1 Reply Last reply
                    0
                    • tbowmoT Offline
                      tbowmoT Offline
                      tbowmo
                      Admin
                      wrote on last edited by
                      #97

                      @flybysun

                      what is the "official" firmware that you upload to the atmega? If it's the sensebender micro fw, then please observe that this is meant to run with a Si7021 sensor, and not DHT22, so unless you modify things, it won't run without that sensor onboard..

                      1 Reply Last reply
                      0
                      • F Offline
                        F Offline
                        flybysun
                        wrote on last edited by flybysun
                        #98

                        @tbowmo
                        I have a 1:1 build of the sensebender micro, including the Si7021. Something I definetly will try tonight is to change the the radio modules with one of these I had before (and are working). I've just discovered this here:
                        https://forum.mysensors.org/topic/1153/we-are-mostly-using-fake-nrf24l01-s-but-worse-fakes-are-emerging

                        With "official" firmware I mean the Arduino Sketch which is included on the hardware webpage:
                        https://www.mysensors.org/hardware/micro

                        1 Reply Last reply
                        0
                        • F Offline
                          F Offline
                          flybysun
                          wrote on last edited by
                          #99

                          @mfalkvidd @tbowmo
                          So folks, I finally got it to work. It really seems to be a problem with my radio modules. When I change my PA module on the gateway against one of these I ordered for the SenseBender Micro, everything works fine. But I still don't understand why my pro mini with the smd radio was able to send the data to the pa module, while the sensebender connected to a smd version still didn't work.
                          Is there anything special on the PA Version, that I've missed? I wonder if I can live with that now, I thought the PA Version has a bit more sensitivity and gain and would be better as the central gateway unit.

                          mfalkviddM 1 Reply Last reply
                          0
                          • F flybysun

                            @mfalkvidd @tbowmo
                            So folks, I finally got it to work. It really seems to be a problem with my radio modules. When I change my PA module on the gateway against one of these I ordered for the SenseBender Micro, everything works fine. But I still don't understand why my pro mini with the smd radio was able to send the data to the pa module, while the sensebender connected to a smd version still didn't work.
                            Is there anything special on the PA Version, that I've missed? I wonder if I can live with that now, I thought the PA Version has a bit more sensitivity and gain and would be better as the central gateway unit.

                            mfalkviddM Offline
                            mfalkviddM Offline
                            mfalkvidd
                            Mod
                            wrote on last edited by
                            #100

                            @flybysun the PA version draws much more power than the non-PA version (5x more if I remember correctly). If the power supply can't deliver clean power (without ripples or sudden dips), the radio will malfunction.

                            1 Reply Last reply
                            1
                            • djbonetD Offline
                              djbonetD Offline
                              djbonet
                              wrote on last edited by
                              #101

                              Hi team,
                              By curiosity running the Atmega328p at 8mhz down to 1.8v isn’t out of spec ?
                              Does it work reliable ?
                              Should we div8 clock speed than mesure vcc and set prescaler accordingly ?
                              Just by curiosity for further project I see a lot of info to not go above 4Mhz at 1.8mhz as the data sheet and other that it’s working stable even a 8mhz

                              Thanks all !

                              mfalkviddM 1 Reply Last reply
                              0
                              • djbonetD djbonet

                                Hi team,
                                By curiosity running the Atmega328p at 8mhz down to 1.8v isn’t out of spec ?
                                Does it work reliable ?
                                Should we div8 clock speed than mesure vcc and set prescaler accordingly ?
                                Just by curiosity for further project I see a lot of info to not go above 4Mhz at 1.8mhz as the data sheet and other that it’s working stable even a 8mhz

                                Thanks all !

                                mfalkviddM Offline
                                mfalkviddM Offline
                                mfalkvidd
                                Mod
                                wrote on last edited by
                                #102

                                @djbonet yes, running the atmega328 at 8MHz and 1.8V is out of spec.
                                Yes, sometimes running out of spec doesn’t cause problems.

                                djbonetD 1 Reply Last reply
                                0
                                • mfalkviddM mfalkvidd

                                  @djbonet yes, running the atmega328 at 8MHz and 1.8V is out of spec.
                                  Yes, sometimes running out of spec doesn’t cause problems.

                                  djbonetD Offline
                                  djbonetD Offline
                                  djbonet
                                  wrote on last edited by
                                  #103

                                  @mfalkvidd
                                  Thank you for your fast answer

                                  mfalkviddM 1 Reply Last reply
                                  0
                                  • djbonetD djbonet

                                    @mfalkvidd
                                    Thank you for your fast answer

                                    mfalkviddM Offline
                                    mfalkviddM Offline
                                    mfalkvidd
                                    Mod
                                    wrote on last edited by
                                    #104

                                    @djbonet you’re welcome. If I remember correctly, the datasheet diagram shows the limit for 8MHz to be 2.4V

                                    1 Reply Last reply
                                    0
                                    • M Offline
                                      M Offline
                                      marnej
                                      wrote on last edited by
                                      #105

                                      Hello
                                      Can't compile skech .. .does anyone have updated ?

                                      1 Reply Last reply
                                      0
                                      • M Offline
                                        M Offline
                                        martim
                                        wrote on last edited by
                                        #106

                                        Is there a way to order this board somewhere else. I have ordered now 3 times 2 boards. 2 times 1 board broken and it is very hard to communicate with them and almost never reply.

                                        tbowmoT 1 Reply Last reply
                                        0
                                        • M martim

                                          Is there a way to order this board somewhere else. I have ordered now 3 times 2 boards. 2 times 1 board broken and it is very hard to communicate with them and almost never reply.

                                          tbowmoT Offline
                                          tbowmoT Offline
                                          tbowmo
                                          Admin
                                          wrote on last edited by
                                          #107

                                          @martim

                                          Unfortunately we do not have any other manufacturing partners, so all sensebender boards are produced by itead.

                                          How did you confirm that the board where broken? Have you tried starting the self test in the standard firmware that the micro is delivered with?

                                          The factory firmware is available at
                                          https://github.com/mysensors/SensebenderMicro/blob/master/Arduino/SensebenderMicro/SensebenderMicro.ino

                                          1 Reply Last reply
                                          1
                                          Reply
                                          • Reply as topic
                                          Log in to reply
                                          • Oldest to Newest
                                          • Newest to Oldest
                                          • Most Votes


                                          10

                                          Online

                                          11.7k

                                          Users

                                          11.2k

                                          Topics

                                          113.0k

                                          Posts


                                          Copyright 2019 TBD   |   Forum Guidelines   |   Privacy Policy   |   Terms of Service
                                          • Login

                                          • Don't have an account? Register

                                          • Login or register to search.
                                          • First post
                                            Last post
                                          0
                                          • MySensors
                                          • OpenHardware.io
                                          • Categories
                                          • Recent
                                          • Tags
                                          • Popular