Revision [24749]
This is an old revision of Relaisboard made by ToBo on 2017-07-26 23:12:42.
Relais Board
Double, tripple or quad
dx.com / Amazon
1. 5 V control voltage
For 5 V systems like Arduino connect Vcc to 5 V and set the JD-VCC jumper.
The inputs are low-active. The microcontroll must deliver a low level to activate the relais.
2. 3.3 V control voltage
For 3.3 V systems like raspberry Pi remove the JD-VCC jumper. Conect 5 V to the JD-VCC side of the jumper.
Connect 3.3 V to VCC.
