Purpose of this tutorial:
The objective of this tutorial is to flash an LED by the ESP32 board: to turn the LED on and off alternately at 1 second intervals.
Necessary components
- ESP32
- LED
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220Ω resistors
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Connecting wires
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Test plate
Mounting
As for the assembly, it is easy to connect LEDs to the ESP32 board:
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Connect pin D23 of the ESP32 card to the resistor leg
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Then, we connect the second leg of the resistor to the anode (+ terminal) of the LED
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Finally we connect the cathode (terminal -) of LED to the GND of the ESP32 board
MicroPython program
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import time from machine import Pin led=Pin(23,Pin.OUT) #Sets ESP32 board pin D23 to output mode while True: led.value(1) #Light up LED time.sleep(1) #Wait 1s led.value(0) #Turn off LED time.sleep(1) # Wait 1s |
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