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instructables
WiFi Sync Clock
by shiura
Step 1: Print Parts
Three hand analog clock with automatic time adjustment using NTP via WiFi. Intelligence of the micro controller now removes the gearsThree hand analog clock with automatic time adjustment using NTP via WiFi. Intelligence of the micro controller now removes the gears
from the clock.from the clock.
This clock has no gears to rotate hands although it has only one stepper motor.
Hooks behind the hands interfere with other hands, and reciprocal rotation of the second hand controls
the position of the other hands.
Mechanical endstop denes the origin of the all hands. It has no origin sensors.
Unique and fun motion seen every minute.
note : Two hand version without strange motion ( WiFi Sync Clock 2
) is published.
Supplies:
You needYou need (other than 3D printed parts)
ESP32 based micro controller with WiFi. I used "MH-ET LIVE MiniKit" type ESP32-WROOM-32 board
(around 5USD).
28BYJ-48 geared stepper motor and its driver circuit (around 3USD)
M2 and M3 tapping screws
https://youtu.be/rGEI4u4JSQg
Print all parts with supplied posture.
No support needed.
Select either "backplate.stl" (for wall clock) or "backplate-with-foot.stl" (for desk clock)
WiFi Sync Clock: Page 1