Hi
I have two different arduino yuns(R4 and V5) that I'm using for a project with sensors operating on I2C.
I'm loading the same firmware but the V5 board cannot operate at a I2C bit rate of 400Khz; The R4 model can.
I'm not sure if i'm battling with a difference i the bootloader or if its due to signal integrity caused by a different board layout. I'm well aware that my wiring and stray capacitance, in between sensors and board, are way out of normal use as this/I2C of course is intended for onboard use!!!
Did anyone else ever used the yun V5 succefully at 400Khz(Using the Wire.setClock(400000L) command)??
I see here that the newest version should be R5 and not V5?? Are there any difference between a R5 and V5 board?? For sure there is a difference on R4 and V5.
There a lot thing to investigate here but before I used too much time on it I would just like to know if somebody else has had the same experience.
Br