This is a funny experiment to build a retrograde clock using servos and controlled by an ESP32 Arduino. For the Arduino, I used the D1 Mini ESP from AZ-Delivery. The clock ESP needs to be configured with the correct SSID and Password or use the EspTouch app https://play.google.com/store/apps/details?id=com.dparts.esptouch, which can configure this ESP via Bluetooth. Subsequently, the clock contacts an NTP server, in this case, pool.ntp.org. The clock is configured for timezone 1 (Amsterdam) and uses daylight saving time calculation according to the European standard. As an extra feature, the clock has two LEDs that light up in the morning or afternoon.

See my youtube video: https://youtu.be/lQSqS2Veb0E

Components

• ESP32 Arduino
• 2x 220 ohm resistors
• 2x LED (white)
• 2x SG90 Servos