💬 FOTA (Wireless Programming)

[nick van alst]

Is the sensbender micro already preloaded with the Dualoptiboot bootloader?

[mfalkvidd]

@nick-van-alst https://forum.mysensors.org/topic/5939/is-the-sensbender-micro-already-preloaded-with-the-dualoptiboot-bootloader

[maghac]

I'd like to try this on my Pro Mini clone, but unfortunately I find the instructions very confusing.

What are fuses and why do I need to change them? To what do I need to change them?
I cannot see "Arduino Mini pro MYSBootloader" in Boards.

I am using Mysensors 2.1.

[sundberg84]

@maghac - https://forum.mysensors.org/topic/3018/tutorial-how-to-burn-1mhz-8mhz-bootloader-using-arduino-ide-1-6-5-r5 here is a good tutorial how to burn a bootloader. You need to select a bootloader you want to use. They all have different properties. The fuses are burned when you burn the bootloader. The wirelsess programming tutorial is found here: https://www.mysensors.org/about/ota

[gohan]

The suggested bootloader programmers in the article work with all Arduino Mini pro, UNO, MEGA and so on? I have searched around Aliexpress for "USBASP" but it seems they support only windows 7 and the common description is " USBASP USBISP AVR Programmer USB ATMEGA8 ATMEGA128" so it's kind of confusing for me

[tbowmo]

They should work with all of the "old" AVR line of atmel processors (attiny, atmega)

If you go with newer processors like atsam procssor line, you need to have a CMSIS adapter instead.

Btw. they should work on both windows and linux (and newer versions of windows as well)

[hiddenuser]

Hi there,
I have a RPI running my gateway(/dev/ttyUSB020) and domoticz is running on the rpi too. How do I used MYSBootloader to push sketches to my sensors?
Thanks

[gohan]

@hiddenuser https://www.mysensors.org/about/ota
Then I suggest you configure the gateway as an ethernet gateway and use myscontroller to assign the firmware to the nodes

[bilbolodz]

It's not quite clear for my how to use MYSBootloader for OTA. I'm running Domoticz as a controller (on RPI) and my gateway also is running on RPI (NRF on GPIO). Should have I one more arduino gateway connected to Windows machine running MYSController? As far I know there could be only one gateway in mysensors network.

[gohan]

You just connect myscontroller to the gateway running on the RPI if it is configured as ethernet

[maghac]

I installed mycontroller.org for this purpose (OTA updates).

I have a MQTT gateway running on a NodeMCU, which connects to my MQTT server (mosquitto running on a ubuntu server) via wifi. This setup works very well, and I don't have to keep anything running on my desktop machine (which is a windows 10 box) while the OTA updates are being pushed out (which takes ages, since they are running on battery and only wake up once every few hours).

[rozpruwacz]

@maghac said in 💬 Wireless Programming:

updates a

lately I was also tinkering with the OTA updates. I'm using RPI as a gateway and controller at the same time. I'm using MQTT gateway and the controller software is OpenHAB. As I studied the documentation about OTA I learned that it is not working with MQTT gateway. Can You explain how to setup OTA with MQTT gateway ? For now I have to kill the MQTT gateway process and launch serial gateway with virtual serial port which in turn has to be shared through the network with the ser2net to be able to use it with mycontroller running on my desktop.

[maghac]

@rozpruwacz Have a look here: https://forum.mysensors.org/topic/4345/mqtt-client-gateway-node-controller-ota

[hoegaarden_bier]

Not sure what I am doing wrong here,... I followed the instructions for bootloader MYSController using an 'Arduino as ISP',... now when trying eg. the Blink sketch, I see that it takes about 10 seconds before it starts and after some 'blinks' it seems to miss some 'blinks',... any suggestions what might be wrong? The normal optiboot seems to work fine...

[maghac]

I just enabled OTA on a non-sleeping node - it doesn't call smartSleep() and the loop function is mostly empty (except for sending one initial message). I do have a receive() function since I need to respond to incoming messages.

How can I properly enable OTA in this kind of node? Sending the "New firmware" command in MyController sends the message which gets caught by receive() and just gives me an error message since it's not one of the message types I expect. Telling the node to reboot sends it into some sort of endless loop which I cannot break unless I kill power to the board.

[gohan]

@maghac did you see this? https://forum.mysensors.org/topic/6769/node-reboot-issue/7

[maghac]

@gohan Thanks. I seem to have the same issue and I'm also using a 5V pro mini, although I actually am using the MYSBootloader.

[maghac]

I am having problems flashing a new bootloader on a 5V 16Mhz Pro Mini board. Or rather. the flashing is fine, it's just that I cannot upload a new sketch via FTDI afterwards.

Here are my custom entries from boards.txt:

## Arduino Pro or Pro Mini (3V3 & 5V, 16 MHz) w/ ATmega328 MYSBootloader
## -------------------------------------------------


proMYSBL.name=ATmega328 16Mhz MYSBootloader 1.3 beta 

proMYSBL.upload.tool=avrdude
proMYSBL.upload.protocol=arduino
proMYSBL.upload.maximum_size=30720
proMYSBL.upload.maximum_data_size=2048
proMYSBL.upload.speed=115200

proMYSBL.bootloader.tool=avrdude
proMYSBL.bootloader.low_fuses=0xF7
proMYSBL.bootloader.high_fuses=0xDA
proMYSBL.bootloader.extended_fuses=0xfe
proMYSBL.bootloader.unlock_bits=0x3F
proMYSBL.bootloader.lock_bits=0x0F
proMYSBL.bootloader.file=MySensors/MYSBootloader.hex

proMYSBL.build.mcu=atmega328p
proMYSBL.build.f_cpu=16000000L
proMYSBL.build.board=AVR_UNO
proMYSBL.build.core=arduino
proMYSBL.build.variant=standard

## Arduino Pro or Pro Mini (3V3 & 5V, 16 MHz) w/ ATmega328 MYSBootloader
## -------------------------------------------------


proMYSBL16.name=ATmega328 16Mhz MYSBootloader 1.3 beta DEV

proMYSBL16.upload.tool=avrdude
proMYSBL16.upload.protocol=arduino
proMYSBL16.upload.maximum_size=30720
proMYSBL16.upload.maximum_data_size=2048
proMYSBL16.upload.speed=57600

proMYSBL16.bootloader.tool=avrdude
proMYSBL16.bootloader.low_fuses=0xF7
proMYSBL16.bootloader.high_fuses=0xDA
proMYSBL16.bootloader.extended_fuses=0xFD
proMYSBL16.bootloader.unlock_bits=0x3F
proMYSBL16.bootloader.lock_bits=0x0F
proMYSBL16.bootloader.file=MySensors/MYSBootloader_16MHz.hex

proMYSBL16.build.mcu=atmega328p
proMYSBL16.build.f_cpu=16000000L
proMYSBL16.build.board=AVR_UNO
proMYSBL16.build.core=arduino
proMYSBL16.build.variant=standard


## Arduino Pro or Pro Mini (3V3 & 5V, 8 MHz) w/ ATmega328 MYSBootloader
## -------------------------------------------------


proMYSBL8.name=ATmega328 8Mhz MYSBootloader 1.3 beta DEV

proMYSBL8.upload.tool=avrdude
proMYSBL8.upload.protocol=arduino
proMYSBL8.upload.maximum_size=30720
proMYSBL8.upload.maximum_data_size=2048
proMYSBL8.upload.speed=57600

proMYSBL8.bootloader.tool=avrdude
proMYSBL8.bootloader.low_fuses=0xE2
proMYSBL8.bootloader.high_fuses=0xD2
proMYSBL8.bootloader.extended_fuses=0xFE
proMYSBL8.bootloader.unlock_bits=0x3F
proMYSBL8.bootloader.lock_bits=0x3F
proMYSBL8.bootloader.file=MySensors/MYSBootloader_8MHz.hex

proMYSBL8.build.mcu=atmega328p
proMYSBL8.build.f_cpu=8000000L
proMYSBL8.build.board=AVR_UNO
proMYSBL8.build.core=arduino
proMYSBL8.build.variant=standard

MYSBootloader.hex is from the master branch of MYSBootloader 1.3.0-beta.3, the other two are from the development branch.

Doesn't matter which one I use, I can never get my 5V 16MHz boards to accept a new sketch via FTDI cable. I have to go back to the standard Pro Mini bootloader.

[gohan]

@maghac why don't you use the ota feature?

[maghac]

@gohan Good question :)

I was afraid it would get stuck in a neverending loop and I would have to cycle power to the board, but actually OTA programming with mycontroller works fine.

The problem is that OTA uploades takes around 10 mins, which is annoying if I want to test something while I have the node on my desk, before placing it somewhere in my house. So while I anyway have it on the desk, I'd like to use the FTDI cable.

Anyway, things seem to work fine now :)