phyduino/analog_shield/read_pot/main.py

Prints the potentiometer's (RV1) reading ten times a second. A5 reads up to 2.048 V, so with VIO at 3.3 V the last third or so of the turn reads full scale.

Uses

pot_volts()

# Prints the potentiometer's (RV1) voltage ten times a second.
#
# Needs analog_shield.py on the board. RV1 goes from 0 V to VIO (JP3) and is
# read on A5, which measures up to 2.048 V: with VIO at 3.3 V, the last third
# or so of the turn reads 2.048 V.
 
import time  # sleep() for pauses
 
import analog_shield as shield  # the Analog Shield library, used as shield.<name>
 
while True:  # repeats until stopped: Interrupt in PyCharm, or mpremote soft-reset
    print("%.3f V" % shield.pot_volts())  # 3 decimal places: 1 mV
    time.sleep(0.1)