【Training Camp】One-legged little bell

A pure noob replicating a little bitch.

Talk about your experience during production

1. The drawing board uses Lichuang eda. The pure Chinese interface is very friendly to novices, but the update problem after copper pouring and component replacement has troubled me for a while.

2. Get acrylic cutting from Taobao, 9.9 free shipping. The pen holder was easily damaged and had to be reissued once.

3. Soldering the board may be the biggest challenge for novices. After trying many different things, I finally bought a small soldering station. Other components are fine. The pins of PCA9685 are too dense. I laid the copper at a 45° angle. The pads of PCA9685 are jagged and I feel that the soldering is not ideal. In the future, it is better to connect the PCA9685 module externally.

4. For those who don’t have C language foundation, the firmware can only imitate the cat and the tiger.

The open source of Xiao Jian Zhong is here: https://oshwhub.com/itheima/ohosdog_copy

Related information Baidu network disk: https://pan.baidu.com/s/1OztwrWfjke83tJw3oP9gRQ?pwd=qu2s

Complete explanation video: https://space.bilibili.com/430536057?spm_id_from=333.337.0.0