Topics created by falbriard

@felmue Now got some useful readings of Volts using the following code. Not sure about accuracy due to logarithmic scale. I've tested it with an AA 1,5 battery as input signal, connecting GND and ADC pin 32. As I already use a GPS and an expansion board, so at the moment SDA pin 32 at Core2 unit is the only available choice. My code: execute: from machine import ADC adc=ADC(32) adc.atten(ADC.ATTN_11DB) while true (with blockly), execute: signal = int(adc.read()) if signal == 4095: signal = 0 percentage = float(signal / 4095 / 100) volts = float(3.9 * percentage * 100) label2 show volts (with blockly) Now getting 0 at idle connection and +- 1.5 V when testing it with an AA battery as analog signal.

@felmue Thanks for support, problem solved.

Hello @falbriard yes, port C (blue / GPIO13 / GPIO14) is blocked by the GPS module. However you can define a second serial connection in your code using port B (black / GPIO26 / GPIO36) and then connect the NB-IOT to port B. And no, using two UART (serial) modules in parallel on the same port is not possible. Thanks Felix

@felmue Thanks for the detailed instructions. Now able to handle it.