Hi @ricardo85 Can you share what water flow meter you're planning to use? Are you sure you want the WiPy to be a transmitter or a receiver?

@jmarcelino It's without ADC (maybe I need to do it with an ADC). It's just a pin defined as input like : pin = Pin('P19', mode = Pin.IN, pull = Pin.PULL_DOWN) pin.value() which gives me a simple 0 or 1 (I guess 1 when the voltage is at least half of the 3v3?). I will check what the ADC version gives me next week (I have no module with me unfortunately this week-end). It might give me the reading I want. Also thanks Robert for your answer, I will have a look into the pin sheets of the module.

@ClementN The PR is here: https://github.com/pycom/pycom-micropython-sigfox/pull/65 It shows also the minor change to the file pybdac.c and what you can expect from the change (which is just four different levels).