FAQ

4 Relays Not Cycling After Sketch Upload—What’s Missing?

userHead Schultz.Langley 2024-07-25 10:43:26 227 Views1 Replies

I uploaded the first sketch to arduino, the 4 relays should be turned on and off every second, but nothing happened. What did I miss?

2025-07-25 10:43:54

It needs an external power supply to drive the xbee module and relays. Suggested: 7-12V.

userHeadPic Schultz.Langley