Aquarium (or general purpose) controller


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Mixtel90

Guru

Joined: 05/10/2019
Location: United Kingdom
Posts: 5857
Posted: 10:11am 04 Mar 2024      

Those two are directly switched by the RH OFF-ON toggle switches, not via the ULN2003. I only used relays to give isolation from the toggles, which are going to be operated by wet fingers!