How to use NTP with the Aduino Leonardo Placed on 2020-10-25 The schematic Previous page 1. Introduction Current Page 2. The Schematic Next page 3. How does NTP work? 1. Introduction 2. The Schematic 3. How does NTP work? 4. DS3231 module 5. The LCD 6. The ESP8266 7. Full program Posted by Sander Speetjens Comments Real time clock module DS3231 I2C LCD interface module 20x4 Characters lcd module blue ESP-01 USB Adapter Arduino Leonardo - clone ESP8266 ESP-01S WIFI Module