ESP8266 based board with DS1337, buzzer and support for WS2812 strips or matrices
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README.md

README.md

DA CLOCK

This repository contains the schematics and board layouts for Eagle of the different DaClock versions I've done so far. The common parts between all these versions are: a microcontroller on board with some power management, an RTC and connectors for LED strips or matrices.

Current version is 3.0, based on ESP8266 and DS1337S, also features a buzzer and support for both WS2812 strips/matrices and 5050 "single color" strips.

DaClock 3.0

Versions

Version 3.0 - WIFI LITE

This is the latest version of the DA CLOCK board, a custom ESP8266-based clock with an RTC, a buzzer and output to handle WS2812 strips.

DaClock 3.0 - schema

DaClock 3.0 - layout

Bill of materials for a WS2812-based clock

Item Buy Quantity CPU units Total
Tinkerman Da Clock WIFI 3.0 OSH Park 1 6.57€ 3 6.57€
Ai-Thinker ESP12F Aliexpress / Ebay 1 2.10€ 5 2.10€
AMS1117-3.3 Aliexpress / Ebay 1 0.03€ 50 0.03€
DS1337S Aliexpress / Ebay 1 0.62€ 10 0.62€
32KHz crystal Aliexpress / Ebay 1 0.03€ 50 0.03€
1N4148 SMD Diode Aliexpress 1 0.14€ 10 0.14€
Buzzer Aliexpress / Ebay 1 0.15€10 0.15€
S8550 SMD NPN transistor Aliexpress 2 0.02€100 0.04€
100nF 0805 ceramic capacitor 1 0.01€ 100 0.01€
1uF 10V 0805 tantalum capacitor Aliexpress 2 0.06€ 50 0.12€
1000uF 16V electrolytic SMD capacitor Aliexpress 1 0.19€ 10 0.19€
200Ohm 0805 resistor 1 0.01€ 100 0.01€
10KOhm 0805 resistor 7 0.01€ 100 0.07€
2 positions 5mm screw terminal Aliexpress 1 0.06€ 100 0.06€
3 positions 5mm screw terminal Aliexpress 1 0.07€ 100 0.07€
3 position male header 1 0.01€ 100 0.01€
5 position male header 1 0.01€ 100 0.01€
Jumper 1 0.01€ 100 0.01€
Total 10.25€
  • (units) Minimum quantity for the stated price.
  • Prices are based on the cheapest option, usually Aliexpress.
  • Check the schematic (image or eagle file) for relation between parts and values.

Version 2.1 - WIFI

DaClock 2.1 - schema

DaClock 2.1 - layout

Version 1.2

DaClock 1.2 - schema

DaClock 1.2 - layout

Firmware

  • Project Wordclock uses version 1.0 of this board (atmega328p based).
  • Project Slices uses version 3.0 of this board (ESP8266 based).

Open Hardware

Hardware designs (schematics and CAD) files are licensed under the Creative Commons Attribution-ShareAlike 3.0 Unported License and follow the terms of the OSHW (Open-source hardware) Statement of Principles 1.0.