DIY Digital Alarm Clock Using REKA:BIT With Micro:bit

LCDs are very popular and useful when you need to display some information like sensors data from your project, and once it comes to use it with REKA:BIT it couldn't be easier. ✨

Join me in this fun tutorial to learn how to make a digital alarm clock using an LCD with REKA:BIT ⏰

• 1x REKA:BIT board with micro:bit v2
• 1x 3V3 I2C 1602 Serial Character LCD
• 2x Potential Meter 10K
• 3x Grove to female cable
• 1x Battery Holder
• 4x Cable ties
• 1x Box

• Grab the box and make holes in it as shown in the figures above

By following the figures above:

• Fix REKA:BIT and LCD in the box using cable ties
• The potentiometer should be inserted above the LCD

By following the diagram above:

• Connect both of the potentiometers to the 1st and 3rd ports.
• Connect the LCD to the 6th port

Now, connect your REKA:BIT to your device and open MakeCode editor to start programming.

• Add REKA:BIT extension and follow the code block in the picture above
• After completing the code, download it on microbit

You can also view and edit the code by clicking here!

Turn on REKA:BIT and start by adjusting the current time, after that proceed to set the alarm

• Hold A button and rotate the potentiometer to adjust the time
• Hold B button and rotate the potentiometer to set the alarm

Great job, have a good day maker :)