The Adafruit Metro RP2350 is a Raspberry Pi RP2350 development board ... existing Arduino shields. Key features include 37 GPIOs, a microSD card slot, a 5V buck converter (6–17V input), an onboard RGB ...

Fig. 2 shows the circuit diagram of the automatic school bell. It is built around Arduino Uno R3, 16×2 LCD display with I2C (MOD1), DS3231 RTC, 4×4 matrix keypad, 5V SPDT relay, 230V AC call bell, and ...

Whether you’ve got antsy kids at home or in the classroom, a good board game can keep the little ones entertained for hours — not to mention help strengthen their critical-thinking skills.

Seeed Studio’s XIAO 6-Channel Wi-Fi 5V DC Relay is a compact ESP32-C6 Wi-Fi relay board built around the XIAO ESP32C6 module ... On top of that, you have the option of using Arduino IDE, ESP-IDF, or ...

The MCP4725 is an I2C single channel 12 bit Digital to Analog Converter (DAC). It is possible to have up to 8 MCP4725 on one I2C bus. The MCP4725 supports 100 KHz 400 KHz and 3.4 MHz bus speeds. The ...

Arduino library for the I2C LCD display, typical 20x4 characters. The library is inspired by the excellent New-LiquidCrystal library by F. Malpartida. Therefore the interface is kept quite identical, ...