Pin(16,Pin.OUT) constructor changes state on ESP8266
Hardware used: Amica NodeMCU v2
Build: esp8266-20191220-v1.12.bin
If the value parameter is not defined when calling the Pin's constructor/init method, the state of the pin peripheral is not supposed to be affected.
http://docs.micropython.org/en/v1.12/library/machine.Pin.html
On my particular test device, there is an LED on gpio 2 and 16. 2 works as expected, however when initializing a Pin instance on gpio16 (on the ESP-12E), its value is changed.
REPL calls to reproduce:
>>> from machine import Pin
>>> led = Pin(16, Pin.OUT, value=0)
>>> print(led.value())
0
>>> led = Pin(16, Pin.OUT)
>>> print(led.value())
1
>>>
I would not expect the value to change to high=1 when no value is set.
can not use onboard LED esp32
Hello.
I got ESP32 from azdelivery. It has one onboard led(D1). After installing micropython, its used as uard led?
If i try to set the D1 like usual - machine.Pin(1, machine.Pin.OUT) - the led lits up and device freezes.
Is ther something i can do?
Thanks.