宋元浩

STM32 extended version

Overview

The open source version is version 2.0, and version 1.0 has been updated. The installation hole position is more user-friendly. The
STM32 extended version is suitable for learning in balance vehicles, OLED multi-level menus, motor drives, buttons, etc.

Integrated LM2596 and AMS1117 step-down
(LM2596 It is recommended to buy the genuine version of AMS1117. AMS1117 has not been used in large projects. There are too many pirated versions.)
The quality of pirated versions is not guaranteed and may cause other problems.

On-board BAT voltage collection requires manual welding of the pad, which is located at the bottom of the PCB, but

the welding has not been verified. Note
1. After the component welding is completed, please use a multimeter to measure it before loading the microcontroller to avoid burning the microcontroller.
2. The AMS1117 output capacitor does not use tantalum capacitors. If you mind, please modify
it. 3. Please use a withstand voltage value of electrolytic capacitors > 1.5Vin
4. All soldering The pads are enlarged and extended. If you don’t want to solder the patch, you can use the integrated power module (BAT to 5V module)
to weld to the corresponding identification pad. At this time, the pad switch is not used. Please connect the switch to the battery outside the module.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2025-05-09 16:28:10

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