- 1x Arduino board (Uno, Pro Mini)
- 8x 330Ω resistors.
- 3x high value resistor (e.g.: 470000Ω).
- 4x 390Ω resistors.
- 4x 7-segments display. Common cathode.
- 3x buttons.
- 4x 2N5551 NPN transistors.
- 1x CD4511BE BCD-to-7-segment decoder.
- 1x buzzer.
Download it here.
There is a configuration section in the main file (ArduinoClock.ino). Before loading the code to your board make sure that pins are configured properly.
Running on an Arduino Pro Mini, it's build on a bakelite board. Instead of using four different 7-segments display I use a four digit 7-segment display: Youtube video
Running on an Arduino Uno, unlike the 2018 version, it has an additional led that is on when the alarm is on: Youtube video
ArduinoClock is licensed under the terms of the MIT License. Please, read the LICENSE file.