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3D Printed Miniature RC Excavator Circuit Part v2

Overview

The joystick has been optimized, and an OLED screen has been added. The solution has been changed to STM32F0 + CI24R1.
The first version had many issues, so the second version optimized

the LDO by replacing it with an XC6206, which is cheaper and more reliable!
Aluminum electrolytic capacitors are no longer used indiscriminately. Instead,
OLED with PMOS control is chosen based on the manual's recommendations, with the buttons connected to the wake-up pin, for easier low-power design later.
Issues with the CH340 have been rectified
, and the position of the controller and OLED screen has been slightly adjusted .

Version v2.2.2
considers using JLCPCB SMT's version,
making some optimizations to the first version,

and using the internal v2.3.0 version. Only the latest version will be used!

Design Files

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Update:2026-03-26 23:21:03

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