Hello Forum members,
When I switch bulbes the relay shield works fine. When I switch orkli 40310200 2 way valves I get electrical interference. the DS18D20 (temp measurement) and the display (MOP-AL204A-BBTW: LCD 4x20 blue, antratek.nl/pdf/MOP-AL204A.pdf) gets disturbed 3 of the 10 times. The relay shield and Arduino itself keep on working correct.
What can I to make my project work without problems?
With kind regards