Freematics Forum

I managed to fix the problem. For anyone ever to have this problem, you have to include begin transaction so the spi protocol is initialized properly ( I think this is already fixed in the v5 code): void COBDSPI::write(const char* s) { #ifdef DEBUG debugOutput(s); #endif delay(1); digitalWrite(SPI_P...

Dear Freematics, I have recently bought a Freematics one and I was trying to run the data logger example from v4 in github. For testing purposes I wanted to read the voltage with the getVoltage() function. This seems to work until I mount the sd card. This happens because then sd.open() is successfu...