Usb Wiring Diagrams 4 Wire. It would help if you wired the relay according to either ac or dc whatever is being used. Pressure transmitter 4 20 ma with 12 30 vdc supply voltage.
1 x 4 way barrier strip. There are a few different ways to arrange panels batteries and connectors. In the case that the coil is not powered pins 30 and 87a are connected.
Dfplayer mini has a 3w amplifier on the board.
Full featured usb 32 and 20 type c cable wiring plug 1 usb type c usb type c cable plug 2 usb type c pin name wire color no. The diagrams below show wiring for an australian 240v mains cord plug and socket. Solar panel wiring diagrams. Tony and 3 other contributors wiring diagram.