DS3231 AT24C32 I2C RTC Clock Module Timer Memory for Arduino Raspberry Pi ESP32

DHT22 Digital Temperature Humidity Sensor AM2302 Module ESP8266 ESP32 Arduino. DS3231 AT24C32 IIC RTC Module. High-Precision DS3231 Clock Chip – Built-in temperature-compensated crystal oscillator ensures accuracy of±2ppm (1-minute error per year).