I know nothing about CircuitPython and not much about micro-controllers, and would like to run a CP script on an ESP32 micro-controller to talk to a sensor through its UART.
What would be the equivalent of /dev/ttyS0?
Code: Select all
import time
import serial
class SenseairS8:
def __init__(self, port="/dev/ttyS0", baudrate=9600, timeout=.5):
self.ser = serial.Serial(port, baudrate=baudrate, timeout=timeout)
self.ser.flushInput()
def co2(self):
try:
self.ser.flushInput()
self.ser.write(b"\xFE\x44\x00\x08\x02\x9F\x25")
time.sleep(1)
response = self.ser.read(7)
high = response[3]
low = response[4]
co2 = (high*256) + low
except Exception as e:
co2 = None
print(e)
return co2