Review on ๐ Huayao 2pcs 4 Channel 5V Relay Module with Optocoupler for Arduino UNO R3 MEGA 2560 1280 DSP ARM PIC AVR STM32 Raspberry Pi by Matt Weber
It works. It may have an additional ground contact.
Relay works properly. Solder joints are smooth and clean. I would like to see a ground pin next to VCC for the output side of the optocoupler. I'm not sure if the ground is isolated or not as you need to use the ground on the signal input side.
- Power indicator lights for safe use
- Not as thick as other picks
New products
Comments (0)
Top products in ๐ฅ๏ธ. Single Board Computers
Gikfun Screw Shield Expansion Board: Enhance Arduino UNO R3 with the EK7007 Add-On
11 Review
LAFVIN Super Starter Kit for Arduino R3 Mega2560 Mega328 Nano with Detailed Tutorial - Compatible with Arduino IDE
11 Review
Vilros Raspberry Pi 4 4GB Complete Starter Kit - Black Fan-Cooled Aluminum Case for Heavy-Duty Performance
12 Review
REXQualis Comprehensive Starter Kit with Arduino MEGA 2560 & Detailed Tutorial for Arduino IDE Compatibility
11 Review
Another interesting products
Glarks 660 Pieces Phillips Assortment Motherboard
10 Review
Comprehensive 500pcs Laptop Screw Kit Set for ๐ฉ IBM HP Dell Lenovo Samsung Sony Toshiba Gateway Acer
12 Review
36-Pack Black Rubber PC CPU/Case Fan Screws/Rivets Set for Computer
11 Review
M.2 Screw Kit: Easy Mounting for NVMe SSDs on ASUS Motherboards
19 Review