66OEZwj

[Lichuang Development Board] Smart Electronic Dog

Overview

**本人虽以大四但第一次做小车，过程很开心，但是无奈于大四比较忙虽然功能都已实现，但不近于完美；代码待进一步更新。**
# 器件选型：
电机采用n20电机，电机小巧，寿命长，转速精确；没有选用太高转速的版本，实测300/s，小车的速度已经很可以了，毕竟它就那么小。
![O1CN01NyZdLP1DqmpYyoH9l_!!128600268.jpg]

轮子采用了33mm的n20车轮
![O1CN010EltBD2MMriYWfbYD_!!2208077569814.jpg_Q75.jpg]

电机驱动采用rz7899
![XUGEOPH)23HM3H5NK[866X6.jpg]

蓝牙采用hc-05
![TB2gwsdDY1YBuNjSszeXXablFXa_!!361121710.jpg_400x400.jpg]

寻迹采用ITR9909 寻迹电路采用了两路，也是为了节省空间。
![TB2PamJeIyYBuNkSnfoXXcWgVXa_!!2658592015.jpg_400x400.jpg]

避障采用HC-SR04
![O1CN01DVT8XB1QkuZ94ZeWT_!!2658592015.jpg_400x400.jpg]

语音模块采用LU-ASR01
![O1CN01a7UKsW1OVDztyTsqF_!!361121710.jpg_400x400.jpg]

# 小车结构：
以pcb电路板本身为主体车身用铜柱连接保护盖承载电池，整体车身偏小巧，车身仅85X100mm，车轮采用33mm车轮。车身展示如下![IMG_20230225_132001.jpg]

![IMG_20230225_133014.jpg]

# 总结
##### 注意小车的左车灯定义引脚不可用 pcb上没有改正实物直接飞线解决了。
##### 小问题：语音模块位置不佳，可以直接将麦克风引线出来放到车顶，放到车底会有电机噪声干扰，收音不佳。
##### pcb板上还留有1.28寸圆形lcd接口，（本来小车是有表情的![004C9894.png]

##### 小车制作还有很多提高的空间。

Design Files

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Update:2025-05-20 02:14:40

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