xFOny

[Verified] Kitchen Alarm Clock

Overview

A countdown alarm clock powered by a lithium battery.

Function description:
Left button: Short press to increase minutes, long press to continuously increase minutes
; Middle button: Short press to increase seconds, long press to continuously increase seconds
; Right button: Short press to start or stop, long press to power on/off;
Short press both left and middle buttons together to clear the timeout
state, automatically shutting off after 2 minutes.

Assembly instructions:
The motherboard is secured with screws, the front and back covers are glued together, and the back cover has magnetic adhesive strips.

Accessories:
Lithium battery: Specifications 602040/500mAh, adhesive backing attached to the inside of the back cover, pay attention to the positive and negative
terminals when wiring; Screws: M2.5*5;
Screen: 1.14-inch TFT, 135*240; ST7789V, mine is from Taobao Baoyingfeng Display

. Note: The MCU is AIR32F103CBT6, with 96k RAM enabled, incompatible with STM32F103
firmware. The casing is included. The firmware can be flashed using ST-LINK, JLINK, or DAPLink.

Design Files

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Update:2026-03-27 21:06:57

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