#538 in Industrial & Scientific
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Reddit mentions of ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi
Sentiment score: 3
Reddit mentions: 4
We found 4 Reddit mentions of ELEGOO 4 Channel DC 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi. Here are the top ones.
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This relay module is 5V active low. Relay output maximum contact is AC250V 10A and DC30V 10A.Standard interface can be directly connected with microcontrollers.Working status indicator lights are conducive to the safe use4-channel relay interface board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipments with large current.Widely used for all MCU control, industrial sector, PLC control, smart home control.
Specs:
Honestly a board like this is way easier
4ch relay
See all the extra thing on there? Optos, transistors, resistors, and diodes. You need that in addition to the relay.
As far as a pi being enough to trigger, I’ve never tested. Someone else know?
I did a similar project a couple years ago, but using a Raspberry Pi Zero W and a relay board. I used this relay board: https://www.amazon.com/gp/product/B01HEQF5HU/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
It was quite happy controlling 24VAC.
I know you said you want an "all-in-one" board, but the ESP8266 is so small, it would be easy to connect it to the relay board and secure them together. That's what I did with the RPi0W - I just electrical taped it to the relay board. It ran quite happily for year before we moved house.
Those should work fine, but just for neatness is probably go for this 4 in 1 relay board https://www.amazon.com/dp/B01HEQF5HU/
First of all I'd connect just the relay board to the Arduino and check it still works with your sketch, you should hear it click on and off when the LEDs should work.
Then sort out wiring your strip.
I decided to do PWM. If I use a transistor I won't need a heat sink, right? Will I need any capacitors?
these are the parts I've found so far (Other than motion sensors, short jumper wires, and other common items)
Transistor \
Relays/ One or the other, transistors preferably
Wires
Nano Every
Breadboard(s)
Barrel Jack
Soldering Iron
Solder
Lights + Cable - Would the cable work with the barrel jack to provide power for the Nano Every and the LEDs?
Potentiometers