石榴姐

8H1K28 core board

Overview

Introduction:
1: Small size, powerful function, leads to all IO ports.
2: Fewer components, reducing welding accidents.
3: The microcontroller can switch between 5V and 3.3V power supplies.
4: Lead to more power interfaces.
5: Independent serial download interface makes downloading more convenient.
Physical picture:

Note:
When switching power supply or during normal operation, you need to use a shorting cap to short-circuit two points.
When powered by 5V, short-circuit the following two points.

When powered by 3.3V, short-circuit the following two points

(Note: It has been physically verified)

Design Files

Gerber_PCB_8H1K28 core board.zip

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Update:2025-05-10 18:20:49

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