Mysensor-ing a thermostatic valve

[Sorg]

The fuses of th HR25 atmega are:

E:FD, H:91, L:62

If i trust the AVR duse calc: http://www.engbedded.com/fusecalc/
This means that the 8-divider is applied on the clock... this might explain the behavious seen above.

So i changed the CKDIV8 bit:

avrdude -c usbasp -p m329p -U lfuse:w:0xe2:m

and voila the pin 34 , blink à 1Hz.
Frequency problem solved.

[Sorg]

OK, some news....
I have connected a rf24 module to the external header, hoping to drive it with softSPI (in order to limit internal modification of the valve).

While compiling a simple mysensor sketch, i can see several issues with the libraries Lowpower.h and PinchangeInt.h.... these libraries are very MCU-dependant and are not compiling. It is probably doable to modify them in order to upport the 329p, but it is out of my field of competence. I don't really understand the internals of theses libs.
If someone can help, it will be apreciated.

[hek]

These dependencies has been removed in the development branch.

[Sorg]

@hek said:

These dependencies has been removed in the development branch.

Is that sure ? I have not tried to compile dev branch yet, but i still find a reference to lowpower in Mysensor.h :

#ifdef __cplusplus
#include <Arduino.h>
#include <SPI.h>
#include "utility/LowPower.h"
#endif

[hek]

@Sorg

Sorry.. I only read PinChangeInt. Still a Lowpower dependecy if you want to use the sleep functions.

Might be good to make this as a "driver" as well in the future. But it will be hard because it is relatively hardware dependent if you want to wake up on external triggers.

[Sorg]

@hek Sure.
Modifying the lowpower library to manage the 329p is definitely doable but i need to understand the internals and read the MCU datasheet. Time consuming but doable.

[Sorg]

Other general question:
At this stage, is the "dev" branch compatible with a "stable" gateway and "stable" nodes ?

[hek]

Yes, it should.

[Luc3as]

@Sorg Hello, I am really interested in this topic, do you have any new informations or progress in this project ?

[Sorg]

Hello Lucas,

Last year , i did not achieve to run a sketch on the HR25. I remain convinced that it should be doable, but i am not enough aware of the inner details of the MCU / Arduino.
also, my job has become a lot more time consuming, and i have not been able to spend time on this project for several months.

If someone want to take over from here, i would be very happy.