Review on 🌐 MCIGICM 2 Channel DC 5V Relay Module: Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3, DSP, ARM, PIC, AVR, STM32, Raspberry Pi by Jenna Morocho

Name: 🌐 MCIGICM 2 Channel DC 5V Relay Module: Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3, DSP, ARM, PIC, AVR, STM32, Raspberry Pi
Item: 🌐 MCIGICM 2 Channel DC 5V Relay Module: Optocoupler Low Level Trigger Expansion Board for Arduino UNO R3, DSP, ARM, PIC, AVR, STM32, Raspberry Pi
Rating: 3

October 22, 2022

Two out of three worked out of the box.

Two of the three relay boards worked as expected immediately after installation. Other reviewers had similar issues. I checked the signal paths with an oscilloscope and noticed that two pins are shorted due to a solder jumper on the bottom of the board. After I scraped off the solder jumper with a small screwdriver, the board worked as it should. I would have given 5 stars if it wasn't for the post production quality control. I would buy again.

Pros

Easy to use

Cons

Protection

New products

Comments (0)

Please, sign in to write a comment

Top products in 🖥️. Single Board Computers

🎁 Ultimate BBC Micro bit Sensor Starter Kit: Keyestudio 37-in-1 Box with Tutorial, Compatible with V1.5 & V2, Gift for Kids and Adults (Microbit Board Not Included)