Arduino theClock3
About the Arduino theClock3 PCB
Arduino theClock3 is an open source ESP32 PCB design by phorton1, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 48.3 × 96.5 mm, with 28 components from 14 distinct parts.
Its main chip is the ESP32_DEV_0, from the ESP32 family. By type, the board carries 11 resistors, 6 connectors, 4 transistors, 2 switches, 2 diodes and 2 capacitors.
It belongs with the iot & wireless designs in this gallery.
From the project
My third electromagnetically driven wooden geared clock
Home -- Design -- Plan -- Wood -- Coils -- Electronics -- Firmware -- Assemble -- Build -- Tuning -- UI -- Software -- Troubles -- Notes
This clock uses wooden gears and a simple electromagnetically driven pendulum with the goal of keeping accurate time.
It uses an an electromagnet and permanent magnet to provide pulses of energy to the pendulum to keep it moving, an angle sensor to detect the position of the pendulum, and a magnetic spring to to speed up, or slow down, the pendulum.
Main components on the Arduino theClock3
Arduino theClock3 bill of materials (BOM)
28 components, 14 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32_DEV_0 | myESP32DEV0 | U2 |
| 2 | BC548 | myTransistor | Q1, Q4 |
| 2 | IRF9540N | myThreeLegged | Q2, Q3 |
| 1 | power | myJSTx04 | J1 |
| 1 | coil3 | myPinSocket_1x02 | J2 |
| 1 | coil1 | myPinSocket_1x02 | J4 |
| 1 | Sensor | myJSTx04 | J5 |
| 1 | coil2 | myPinSocket_1x02 | J6 |
| 1 | leds | myJSTx03 | J8 |
| 2 | SW | myButtonAngled | SW1, SW2 |
| 2 | 1N4741 | myZenerDiode | D1, D2 |
| 1 | 330uf | CP_my100uf | C1 |
| 1 | 100 uf | CP_my100uf | C2 |
| 11 | 10K | myResistor | R1, R2, R3, R4, R5, R6, R7, R8 +3 |
Arduino theClock3 design files
The KiCad project lives in the phorton1/Arduino-theClock3 repository on GitHub; these links point at the commit this page was built from.
Arduino theClock3: common questions
What microcontroller does the Arduino theClock3 use?
The Arduino theClock3 is built around the ESP32_DEV_0, from the ESP32 family.
How big is the Arduino theClock3 PCB?
The Arduino theClock3 measures 48.3 × 96.5 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Arduino theClock3?
28 components, from 14 distinct parts. The full bill of materials is listed on this page.
Where can I download the Arduino theClock3 design files?
From the phorton1/Arduino-theClock3 repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Arduino theClock3 design in my own project?
Yes, under the terms of its GPL-3.0 license, which phorton1 chose for the repository.
Can I test firmware for the Arduino theClock3 without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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