ESP32: Difference between revisions
→Installation
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esptool.py --chip esp32 --port /dev/ttyUSB0 --baud 460800 write_flash -z 0x1000 esp32-idf4-20191220-v1.12.bin
= Projects =
== I2C LCD ==
Source: [https://github.com/micropython-Chinese-Community/mpy-lib/tree/master/lcd/I2C_LCD1602 github.com]
*Download the below library file from below link & upload it to ESP32:
https://github.com/micropython-Chinese-Community/mpy-lib/tree/master/lcd/I2C_LCD1602
- mp_i2c_lcd1602.py
*Connect the ESP32 to I2C LCD-1602 as below:
P5 ---------------- SCL
P4 ---------------- SDA
GND --------------- GND
5V ---------------- VCC
* Testing the LCD:
<syntaxhighlight lang="python">
i2c = I2C(1, sda=Pin(4), scl=Pin(5))
i2c.scan()
lcd = LCD1602(i2c)
lcd.puts("Initializing..",0,0)
</syntaxhighlight>
*Print the output on the LCD:
<syntaxhighlight lang="python">
from machine import I2C, Pin
from mp_i2c_lcd1602 import LCD1602
from time import sleep_ms
i2c = I2C(1, sda=Pin(9), scl=Pin(10))
LCD = LCD1602(i2c)
LCD.puts("I2C LCD1602")
n = 0
while 1:
LCD.puts(n, 0, 1)
n += 1
sleep_ms(1000)
</syntaxhighlight>
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