A small dog leg can be used to write and draw.
If you want to know more, you can refer to the official information: plotclock - Jialichuang EDA open source hardware platform (oshwhub.com)
Source code and mechanics included.
The installation tutorial can be viewed at: Bionic Robot Dog Training Camp > Q&A Session_bilibili_bilibili
Soldered board:
Checking the serial port proves that the board can be used:
For power supply, I use USB power supply:
When assembling, pay attention to the position of each screw, and the left steering gear needs to be placed with a gasket. If the connections are not strong, you can add some glue. Personally, I feel that the glue made by the two brothers is the most stable and will not damage the appearance like a glue gun.
Pay special attention to flashing the firmware before assembly to initialize the servo to ensure normal subsequent operation.
Physical map:
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