secure low cost Automatic Meter Reading (AMR) system that calculates and transmits the total electrical energy consumption to main server using General Packet Radio Service (GPRS) technology provided by GSM networks. The proposed AMR system consists of three main parts: Accurate digital meter, a transmission facility and the billing server. To make affordable AMR system a low cost off-the-shelf materials are used.

Order Code : RDL/AMR/13/001/V1.0

RDL's RFID Reader-USB V2 is designed for reading code from 125KHz card compatible read-only tags . It can be applied in office/home security, personal identification, access control, interactive toy and production control systems etc.Non contact RFID module, uses the advanced Radio Frequency receiving circuit and embedded MCU design, combining with an efficient decoding algorithm.

ORDER CODE: RDL746

Android mobile phone application developed in order to extended data communication range of our wireless health monitoring device.

ORDER CODE: RDL/DIY-HMSPC/14/001/V1.0

The components of solar powered intelligent drip irrigation system are shown in Fig. Soil moisture sensor is used for real-time collection of crop root soil moisture content and converting it into a signal in the range of Voltage V; and the signal will transformed as knowledge of water requirement of crop. Soil moisture content at the root zone of different crops is collected by using the soil moisture sensor. The threshold limit for the water requirement for a particular crop has been feed to system which in turn controls the operation the control system. The power needed for the operation of the control system has been met with the use of a solar panel and the display will receive the control signal and display the data stored using the sensor from the field.

ORDER CODE: RDL/DIY-DRAM/14/001/V1.0

Controlling appliances is a main part of automation. The main object  of  Home  automation  is  to  provide  a  wireless communication  link  of  home  appliances  to  the  remote  user. The  main  objective  of  this  work  is  to  make  such  a  system which  controls  the  home  appliances  remotely.  Here we have demonstrated a simple yet a sophisticated way to control home appliances via SMS.

ORDER CODE: RDL/DIY-GHAPC/14/001/V1.0

Bidirectional Logic Level Converter is a Four-Channel Device which can be used for Voltage Level Shifting between two devices.The level converter is very easy to use. The board needs to be powered from the two voltages sources (high voltage and low voltage) that your system is using. High voltage (5V for example) to the 'H' pin, low voltage (3.3V for example) to 'L', and ground from the system to the 'GND' pin.

Order Code : RDL/BLC/13/001/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