The board has only one  relay driven by TTL circuit and MCT2E IC for isolation purpose.The board works on 12V but the input signal can come directly from microcontroller output working at 5V to control relays. Relay can switch varierty of AC or DC high voltage, high current 20A,loads working at 110V or 230V AC mains like lights, fans, motors and such. The status of relay is indicated by individual LEDs.

Order Code : RDL/SRB/14/001/V3.0

This is a simple to use, RS232 to serial base unit for the XBee line. This unit works with all XBee modules including the Series 1 and Series 2.5, standard and Pro version. Plug the unit into the XBee Development Board, attach a RS232 cable, and you will have direct access to the serial and programming pins on the XBee unit.

Order Code : RDL/XSU/14/001/V1.0

This simple board breaks out a female USB type B connector’s VCC, GND, D- and D+ pins to a 0.1" pitch header. The +5V and GND pins can be used to power your project from USB, while the D- and D+ pins give you access to the USB’s differential data signal. 

Order Code : RDL/UBB/14/001/V1.0

Because the Arduino (and Basic Stamp) are 5V devices, and most modern sensors, displays, flash cards and modes are 3.3V-only, many makers find that they need to perform level shifting/conversion to protect the 3.3V device from 5V.This 8-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. VCCA should not exceed VCCB.

Order Code : RDL/8BLC/14/001/V1.0

This module enables you to wireless transmit & receive serial data. It is a drop in replacement for wired serial connections allowing transparent two way data communication. You can simply use it for serial port replacement to establish connection between MCU or embedded project and PC for data transfer. This board operates on 5V and has LED indication and 3V regulator.

Order Code : RDL/BL-06/14/001/V1.0

USB Host Board now makes it even easier to integrate USB functionality into your products and with the USB Host device you can implement USB Host Controller functionality in no time at all. The FT311D provides a bridge between peripheral hardware and an Android platform with a USB device port. 

ORDER CODE: RDL/HBS/15/001/V1.0

4 Channel Opto-Isolated Board is a 4 channel opto-isolator board assembly that allows microcontroller and other logic circuits to be interfaced to both input and output signals that require opto-isolation.This board is helpful for connecting digital systems to a high-voltage or noisy system. 

Order Code: RDL/OIB/15/001/V1.0

The breadboard power supply kit that takes power from a DC adapter jack  and provide outputs a selectable 1.8V,3.3V,5V,9V,12V and custom adjustable voltage from 0V to 12V.  Breadboard power supply headers are mounted on the bottom of the PCB for simple insertion into a breadboard.

Order Code: RDL617