Arduino Li-Fi Shield is a plug-and-play evaluation board for developing a wide array of visible light communication applications in consumer, wearable, industrial, medical and Internet of Things (IoT). Arduino Li-Fi Shield transfers data from one source to another through visible light without the flickering effect. Technically, 1‟s (LED on) and 0‟s (LED off) are modulated and then transmitted at very high speed.

ORDER CODE: RDL657

RDL WiFi Eight Channel Relay Board is controlled through WiFi. The WiFi relay board is with 8 SPDT relays rated up to 7A each. You can control devices 230V / 120V (up to 8) directly with one such relay unit. Suitable for home automation applications, hobby projects, industrial automation.

ORDER CODE: RDL665

The I2C-DAC board is a 12-bit digital-to-analog converter device using I2C bus. There are no external components required. Only two signal lines SDA and SCL plus supply voltage and ground are required to be connected. This makes it perfect for embedded systems that require digital-to-analog converter.

ORDER CODE: RDL626

This is Eight  Channel relay board controlled by Serially. The Serial relay board is with 8 SPDT relays rated up to 7A each. You can control devices 230V / 120V (up to 8) directly with one such relay unit. Suitable for home automation applications, hobby projects, industrial automation.

Order Code : RDL/8RB-S/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

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

A 4x4 matrix keypad requiring eight Input/Output ports for interfacing isused as an example. Rows are connected to Peripheral Input/Output (PIO) pins configured as output. Columns are connected to PIO pins configured as input with interrupts. In this configuration, four pull-up resistors must be added in order to apply a high level on the corresponding input pins.

Note: The color of the PCB may vary. However the circuit/pinout of the PCB will remain same.

Order Code : RDL/4X4KP/13/001/V2.0

This is a wonderful little SD card interface module. It is easily interfaced as a peripheral to your module. Through programming, you can read and write to the SD card.All SD Card works on 3V interface.

Order Code : RDL/SDBB5V/14/001/V1.0

This is a wonderful little SD card interface module. It is easily interfaced as a peripheral to your module. Through programming, you can read and write to the SD card.All SD Card works on 3V interface so if your microcontroller is working on 3V you can use this board readily. The interface board provided is for microcontrollers running at 3V.

Order Code : RDL/SDBB/14/001/V1.0