Dear Arduino Forums, Hi! I currently have a Seeeduino v2.21 ATmega328p board connected to a Seeedstudio 4-channel 9V relay shield. There are two solenoid valves involved in the set up. One is controlled by the seeeduino board, the other is not. My switch is a DPDT Toggle Switch with On(left)-Off-O…

DPDT Toggle switch and Arduino timer

Jimmy60 August 31, 2012, 9:15pm 4

I'm not really following. Your sketch only operates one relay on pin 4. Where is the second relay?

Topic		Replies	Views
DPDT Switch? Interfacing	6	2971	May 6, 2021
Problem with toggle switch Programming	5	1180	May 5, 2021
Switching a relay on & off using a momentary push button Programming	15	38501	May 5, 2021
Output to off switching off after 1 sec with Relay Switch Programming	6	812	May 5, 2021
Control DPDT button with Relay Hardware Development	16	9625	May 6, 2021