// https://forum.arduino.cc/t/80-char-array-for-4x20-lcd/1325371/18 lcd.config(39, En_pin, Rw_pin, Rs_pin, D4_pin, D5_pin, D6_pin, D7_pin, BACKLIGHT_PIN, POSITIVE); ...

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Are you unable to use your touchpad, biometric, touchscreen, or any other interactive on your PC? If the I2C HID Device Driver is not working on Lenovo, Dell, Acer, ASUS, etc laptop, then follow this ...

There are plenty of radios you can buy that pick up MW and SW bands if that’s what you’re into. Or, you can follow [mircemk]’s example, and whip one up yourself instead. The build employs an ESP32 as ...

While there is a time and place for wirelessly controlled devices, sometimes you want something you can just reach out and ...

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const byte lineSensor1 = 0; // ir sensor to SX1508's pin 0 const byte lineSensor2 = 1; // ir sensor to SX1508's pin 1 const byte lineSensor3 = 2; // ir sensor to SX1508's pin 2 const byte lineSensor4 ...

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