The firmware can be easily ported but has been most heavily tested on STM32F103C8T6 based breakout boards. Connections required are: USB to host computer 5v and GND to relay board GPIOB 12-15 -> relay ...

A Python 3 module for getting/setting the state of USB Relays. Specifically, these relays are purchased usually from EBay and come from a Chinese manufacturer. They have Songle relays, or look alikes ...

SeaDAC PLC-16H digital I/O module combines high-current Form C outputs and optically isolated inputs. It has eight SPDT high-current Form C relays that can directly switch up to 6A loads at 250VAC and ...

MIDDLEBORO, Mass. - February 2, 2005 - Measurement Computing Corporation today announced the release of its new Measurement Advantage, USB-based electromechanical relay modules. The USB-ERB24 offers ...

GOEPEL electronic has extended its portfolio of innovative USB modules. USB 31128 is a relay board with USB 2.0 interface for general measurement and control applications to switch electronic signals ...

In this post we are reviewing the ESP-01 Wi-Fi Relay Module. It is one of the cheapest smart switches you can purchase currently for making smart home, internet of things, and other wireless do it ...

Welcome to my quick review of an inexpensive 2-channel 5V relay module controlled via RS485 bus utilizing Modbus RTU protocol. As claimed by some online sellers, this easy-to-get Modbus RTU 2-Channel ...

Seeed Studio’s XIAO 6-Channel Wi-Fi 5V DC Relay is a compact ESP32-C6 Wi-Fi relay board built around the XIAO ESP32C6 module which supports Wi-Fi 6, BLE 5.0, Zigbee, and Thread connectivity. Designed ...