| ![](http://img.alicdn.com/bao/uploaded/i2/31295113/O1CN01rOqZhx1ndneevelPq_!!31295113.jpg_b.jpg) | 51 single -chip microcomputer development board STC89C52 minimum system C51 learning experimental programming smart car control board | ¥32.80 | Has been sold: 0 |
| ![](http://img.alicdn.com/imgextra/i1/15995017781738071/T2FjtCXh0NXXXXXXXX-350475995.jpg) |
| | ![](http://img.alicdn.com/bao/uploaded/i2/31295113/O1CN01zesmyh1ndnowoSvdF_!!31295113.jpg_b.jpg) | 0-100V voltage detection relay module 12A charging and discharge voltage monitoring voltage up and down limit control | ¥15.50 | Has been sold: 0 |
| ![](http://img.alicdn.com/imgextra/i1/15995017781738071/T2FjtCXh0NXXXXXXXX-350475995.jpg) |
| | ![](http://img.alicdn.com/bao/uploaded/i2/31295113/O1CN01ehNDnD1ndnjaowZMg_!!31295113.jpg_b.jpg) | New Bluetooth 5.0 dual decoding board MP3 APE non -destructive music FM radio color spectrum TWS wireless speaker | ¥8.50 | Has been sold: 0 |
| ![](http://img.alicdn.com/imgextra/i1/15995017781738071/T2FjtCXh0NXXXXXXXX-350475995.jpg) |
| |