Description:

This is the transmitter and receiver pair. This receiver type is good for data rates up to 4800bps and will only work with the 315MHz transmitter. Multiple 315MHz receivers can listen to one 315MHz transmitter. Only one 315MHz transmitter will work within the same location.

This wireless data is the easiest to use, lowest cost RF link we have ever seen! Use these components to transmit position data, temperature data, even current program register values wirelessly to the receiver. These modules have up to 500 ft range in open space. The receiver is operated at 5V. The transmitter operates from 2-12V. The higher the Voltage, the greater the range – see range test data in the documents section.

We have used these modules extensively and have been very impressed with their ease of use and direct interface to an MCU. The theory of operation is very simple. What the transmitter ‘sees’ on its data pin is what the receiver outputs on its data pin. If you can configure the UART module on a PIC, you have an instant wireless data connection. Data rates are limited to 4800bps. The typical range is 500ft for open area.

This is an ASK transmitter module with an output of up to 8mW depending on power supply voltage. The transmitter is based on SAW resonator and accepts digital inputs, can operate from 2 to 12 Volts-DC, and makes building RF enabled products very easy.

This receiver has a sensitivity of 3uV. It operates from 4.5 to 5.5 volts-DC and has digital output. The typical sensitivity is -103dbm and the typical current consumption is 3.5mA for 5V operation voltage.

Features:

• 315 MHz Operation (434 MHz pair option available)
• 500 Ft. Range – Dependant on Transmitter Power Supply
• 4800 bps transfer rate
• Low cost
• Extremely small and light weight

Documents:

• KLP Walkthrough Tutorial
• Good AVR Tutorial
• Receiver Datasheet
• Another Very Helpful AVR Tutorial – Thanks Eric Forkosh!

Supported Antennae: 30-35cm of wire