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Equal information bit balancer (

Overview

There are five buttons, ABCD and function keys , which are highly expandable.
The design is small enough to fit in the palm of your hand, with a shell plate supported by nylon/copper posts.
Use a battery with a built-in lithium battery protection circuit. It is recommended that the battery be sandwiched between the casing and the motherboard. The thickness is not limited and depends on the length of the support column.
The buttons are all on the same side, so you can press them blindly without looking at the screen .
The screen is encapsulated by Xianneng and uses a 12864 iic screen .
There is an RGB lamp bead on the board, a 5050-sized WS2812, which can be used as a breathing lamp/call reminder/button RGB lighting effect .
Use Type-c.
Using HT7833, it is theoretically possible not to solder the tantalum capacitor, but still retain the tantalum capacitor bit.
Burning uses Xianneng burning folder.
The schematic and PCB are relatively simple and I will try to answer all your questions.

For entertainment purposes only, please do not use it for improper purposes.

Design Files

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Update:2025-08-08 21:11:41

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