A general purpose USB Relay board (controller) for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay Board allows a PC to control a single external device using simple RS232 commands. Relay is fully powered from the USB bus. Free download USB relay board control software.

The general purpose of the Relay board is connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC.

It is an unpretentious programmer for eeprom memories.

This converter can be used on any Microcontroller - PIC, Atmel or other which has TTL serial communications. Converter provides two way serial communications signal conversion between the TTL (Transistor Transistor Logic) output to and from a personal computer USB port using virtual serial COM port.

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 01, Relays: 1-8.

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 02, Relays: 9-16.

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 03, Relays: 17-24.

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 04, Relays: 25-32.

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 05, Relays: 33-40

The general purpose of RS-485 Eight Channel Relay Controller. Control devices using your PC. RS485 BUS ID: 06, Relays: 41-48