2 layers62.7 × 44.4 mm
DRM Watch v3
drfailov/DRM_Watch_v3
DRM Watch 3 - Наручний годинник з дисплеєм SHARP Memory LCD
116 parts92GPL-3.0
Rtc
19 boardsKiCad boards from 18 GitHub repositories tagged “rtc”, the most starred first; open any of them in PCBKit.
- 2 layers44.5 × 35.8 mm
- 2 layers20.3 × 25.4 mm
OrangePiZero GPS NTP Server
moonbuggy/Orange-Pi-Zero-GPS-NTP
An Orange Pi Zero GPS disciplined NTP server, with an SPI TFT display.
5 parts23 - 2 layers89.3 × 50 mm
MM58167-ISA RTC
jensma-de/MM58167-ISA-RTC
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.
29 parts9 - 2 layers65 × 56 mm
- 2 layers31.9 × 30.5 mm
- 2 layers52.2 × 79 mm
Programmable light
dilshan/programmable-light
Simple time based programmable light controller
55 parts5MIT - 2 layers80.3 × 29.5 mm
- 2 layers44 × 44 mm
Bf-027
botanicfields/PCB-RTC-PCF8563-for-M5
a PCB of PCF8563 RTC with Grove I2C for M5Stack and M5Atom synchronized with NTP
25 parts2CC0-1.0 - 2 layers14 × 16 mm
- 2 layers66.6 × 41.3 mm
UPIC46
emertcakir/uPIC46
PIC18F46K22-based versatile development board with CAN, RS-485, EEPROM, RTC, and user LEDs
111 parts2MIT - 2 layers25.9 × 19.3 mm
- 2 layers151.2 × 89.3 mm
LoadShed
DJM0/LoadShed
Off-grid 4-channel PWM load controller with regulated 12 V output from any 12–32 V battery. Sunrise/sunset + RTC scheduling, LiFePO₄ battery protection, dimming pots and an OLED. ATtiny3216 firmware + KiCad hardware.
94 parts1MIT - 2 layers80.8 × 101.1 mm
- 2 layers20 × 20 mm
B PCF8563T BRK R1.0
Boardoza/Boardoza_PCF8563T_RTC_I2C_Breakout_Board
Boardoza PCF8563T RTC Breakout Board is a low-power I²C real-time clock module with battery backup support.
13 partsCC-BY-SA-4.0 - 4 layers78.9 × 30.4 mm
- 2 layers35 × 65.5 mm
LED RTC Clock
hasmar04/LED_RTC-Clock
A clock / calendar using a 32x16 LED Matrix, an Arduino Nano and a DS3231 RTC Module
6 parts - 4 layers80 × 60 mm
Bluepill SensorNode Carrier
SimulatedFlow/kicad-board-2026-07-29-bluepill-sensor-node
STM32 Bluepill environmental sensor node carrier - BME280 temperature / humidity / pressure, RTC and OLED display. Solder kit, bare PCB.
21 parts - 2 layers
