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Results tagged with relay
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user 148097
A relay is an electrically controlled switch. Electromechanical relays use an electromagnet to activate mechanical contacts, solid-state relays use semiconductor switches.
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5v power supply upgrade for an ESP chip and a couple dozen relays
I have remote setup of one ESP32 chip, with a couple of sensors on it and 3 relay boards (total 16 relays).
I currently power them with two separate phone usb chargers. … One charger for the ESP chip (which powers one 4-relay board through it 5v out) and one usb charger for the two other relay boards. …
- 1,245
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How can i drive this 5v Relay board with RPi?
The manufacturer page: chinalctech Link
Please note that my relay (pic #1) has 4 connection pins while the other two (pic #2 and #3) have 3 pins. … Update 2:
I tried to replicate the same connection on the RPi 5v rail, (5v:VCC, GND:GND, test 5v: IN+) the relay does not fire. …
- 38.6k
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How can i drive this 5v Relay board with RPi?
I realised that the relay (lets call this relay Relay1) wouldn't fire with the 3.3v from the GPIO but only by with 5v (~1a) on the IN+ pin. … I had a relay board laying around from another project that would work on 3.3, had it tested before (lets call it Relay2). …
- 153