MicroPython Forum (Archive)

Thanx jimmo, I use Thonny for ESP32 and it is great and dont have this issues, is the best for such a things.

At least, test.py does not work as is, it must have import MQ as module: import MQ from MQ import MQ2 import utime class App: def __init__(self, pin = 0): self.sensor = MQ2.MQ2(pinData = pin, baseVoltage = 3.3) def Run(self): print("Calibrating") self.sensor.calibrate() print("Calibration completed"...

Errors that is present on start using uPyCraft: exec(open('test.py').read(),globals()) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<string>", line 3, in <module> ImportError: no module named 'MQ2' I dont see why it does not see MQ2?!?! I copy MQ2.py and BaseMQ.py in ...

jimmo wrote: ↑

Mon Jul 12, 2021 3:27 pm

jadro wrote: ↑

Mon Jul 12, 2021 2:21 pm

Is there anyone do thw program to read this senso with pure micropython on ESP8266 Lolin board?

Have you seen https://github.com/kartun83/micropython-MQ -- Looks like it should be exactly what you need.

Yes I try this scripts but does not work for me, shows some errors, same as reported...

pythoncoder wrote: ↑

Mon Jul 12, 2021 11:16 am

@jadro If you look at micropython_ir there is a utility which captures a burst from a remote and attempts to deduce the protocol. As the docs point out, this is not a guaranteed process but it works for the commonest protocols.

Thanx Peter

Hi,
I have MQ2 gas sensor with digital and analog pins (4 pins, D0, A0, Gnd, Vcc).

Is there anyone do thw program to read this senso with pure micropython on ESP8266 Lolin board?

Thanx in advance,
Jadro

At last I found and buy this module TTGO T-Call ESP32 with SIM800L GPRS Module-Presolder Header and works great with MicroPython firmware and code. It calls, send SMS... As a charm

Hi, sorry on my late answer,
I think is not problem in battery current because I put txt logging and it not reconnects, just dont send messages or calls. If current is problem then it would restart i think.

Hi, I have SIM800L module with ESP32 all in one board. It works, I use it for SMS send/receive and for CALL incomming/outgoing and it works as a charm. It has line in for battery power and when USB power looses the power it works only on battery but there is a problem in SMSing and CALLing when on b...

I think problem is in UART connection, I'am not familiar with it... In code, there is initialization uart = UART(1, 9600, timeout=1000, rx=self.MODEM_TX_PIN, tx=self.MODEM_RX_PIN) where MODEM_TX_PIN = 26 and MODEM_RX_PIN = 27 and when on USB this is OK but what if battery is connected and USB power ...