Yesterday, I wrote about a 2-year-old open-source hardware ESP32-based DAB+ receiver project, but it turns out there's also a ...

These displays use I2C to communicate, 2 pins are required to interface. Adafruit invests time and resources providing this open source code, please support Adafruit and open-source hardware by ...

The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...

Wiring constraint: The TFT backlight LITE pin must connect directly to 3.3V, never to an analog-capable GPIO. Routing it to an ADC pin allows backlight PWM noise to couple through the ESP32-S3's ...

Abstract: I2C abbreviation is Inter Integrated Circuit. It is a serial bus protocol found by Philips Semiconductor. I2C bus is popular because it is simple to use. I2C protocol is used for ...

Abstract: The audio system requires a large amount of power to transmit sound energy to all areas both inside and outside the room. Sound waves can propagate in the air and undergo great absorption in ...