【ESP32 Learning】Light up the lamp

dcexpert

【ESP32 Learning】Light up the lamp [Copy link]

 

As usual, we start with lighting up the LED. On ESP32, there is no predefined LED object. We cannot use pyb.LED(1).on() to light up the LED like on pyboard. Instead, we need to control it through GPIO. On this ESP32 learning board, the LED uses IO21 (other ESP32 boards may be different), so we can set IO21 as output and control the LED through high and low levels.

1. from machine import Pin from time import sleep_ms LED = Pin(21, Pin.OUT) while True: LED(1) # on sleep_ms(500) LED(0) # off sleep_ms(500)

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yang_alex

Good! Simple and clear.

star_66666

I have started learning, but I don’t have a board yet

dcexpert

star_66666 posted on 2018-7-28 16:35 I have started learning, but I don’t have a board yet

Come and group buy

star_66666

dcexpert posted on 2018-7-28 16:55 Come and group buy

How to use E-coin for group buying

dcexpert

star_66666 posted on 2018-7-29 09:24 How to use E-coin group purchase

Can you contact the administrator?

star_66666

Ok