张小哥

[Training Camp] A robot cai dog based on HI3861

Overview

Overview:

Based on the HI3861 module, it controls eight-channel servos to realize a four-legged robot dog.

Chip introduction: Chuanzhi Education Hi3861 IoT WiFi module is a system-in-package module based on the HiSilicon Hi3861LV100 chip, which can provide complete Wi-Fi IoT development functions. The module has integrated packaging of peripheral components such as crystal oscillator, filter capacitor, WiFi antenna, etc., and only requires 3.3V power supply to operate normally. Modules can be widely used in smart home appliances, smart door locks, low-power cameras, wearable devices, medical equipment, sensors and other low-power IoT devices

Production process:

Since HI3861 only has six pwm outputs and needs to realize more servo control, PCA9685 is used to have sixteen pwm output functions and is connected to the main control chip through iic.

Shell drawn in SOLIDWORKS:

Consider PCB size, battery size, servo size, and expansion of other sensor sizes.

Because of poverty, it is economical and economical to print 3mm acrylic sheets. Just send the .DXF file to the manufacturer and you can print it.

Internal assembly results: (tentative)

Summarize:

There are still areas that can be improved during actual debugging. There may be some problems with serial port burning.

Demo video

The screw couldn't be tightened and turned into a prostrate dog QAQ

Design Files

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Update:2025-05-13 09:43:25

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