Hello, I’ve been trying for some weeks now to interface some grove sensors with the RAK1920, with low level of success, the 0.5mm resistors (according to the documentation) than need to be de solder and re solder in order to be able to work with the communication protocols different to I2C make it pretty much impossible.
I also have a problem and questions about the possible 5V output from the boost integrated in the module RAK1920, this is the setup code I use to get a 5V output(I need it for this sensor Sensor_link among others) :
//Enable IO5 5V
Is there any other step that I need to do in order to get 5V output ?
Is it possible to have that 5V output in the grove connector interface?
(I also tried soldering a 0 ohm resistor in the R1 in another RAK1920 module even with the resistor it did not perform as expected)
I Tried this wiring to get the 5V I need to power the sensor that consumes no more than 80mA, and according with the docs the RAK1920 is able to provide up to 800mA, but as soon as I hook the sensor to the 5V output from the module the voltage drops to 2.1V.