How to set up JY 21 4 channel timer board from Sinoarcade
![](https://i.ytimg.com/vi/XqMhmeqtMjU/mqdefault.jpg)
19:53
Model: JY-21 Timer Board, 4 Channel Timer board, 4개 장치를 연결하여 전원차단 제어가 가능합니다
![](https://i.ytimg.com/vi/iO919ElWFDI/mqdefault.jpg)
4:17
JY 21
![](https://i.ytimg.com/vi/a4z1mkiL9uw/mqdefault.jpg)
2:03:34
Modern Talking,sandra, Michael Jackson, ABBA,C C Catch, Bad Boys Blue🤍Legends Golden Eurodisco
![](https://i.ytimg.com/vi/AU0wGlXZy58/mqdefault.jpg)
15:53
How to set 3-in-1 timer
![](https://i.ytimg.com/vi/rxN4KGQSTzk/mqdefault.jpg)
57:03
Comment Deux Amis Changent Un Château Abandonné En Hôtel 4 Etoiles | @chateaudutheil
![](https://i.ytimg.com/vi/x-EzlsLCUy0/mqdefault.jpg)
18:00
Au cœur de l'Aile Volante Horten
![](https://i.ytimg.com/vi/sfE7yqtd8TA/mqdefault.jpg)
15:18
How to use CH-926 Coin Acceptor with Arduino
![](https://i.ytimg.com/vi/3t38a_AyS5U/mqdefault.jpg)
13:28