• Frequency: 315Mhz
• Modulation: ASK
• Transmission distance: 100m in open ground
• Includes transmitter and receiver with encoder & decoder
This is the Seeedstudio 315MHz Transmitter/Receiver Pair with Encoder/Decoder. This kit consist transmitter and receiver with encoder and decoder. The Defaultly 315Mhz receiver is exchangeable with 433Mhz receiver.
Encoding and Decoding
The popular link is like this: MCU -> Encoder -> Transmitter ------ Receiver -> Decoder -> MCU.
The PT2262 (Encoder) and PT2272 (Decoder) are optional, their existence is to (1) avoid confusing when multiple RF links in range (2) isolate disturbance. You can integrate the encoding and decoding work to the MCUs on both sides. Whenever there is no 315Mhz devices around, you may use it as direct cable connection.
To setup a PT2272 and PT2262 link, you would need to set PT2262 by a little soldering:
And setup the corresponding pins on PT2272:
Please refer to the simple drawing for the 315Mhz RF link. On the transimitter side, You would need to supply 3-12VDC to the "+12V" pin, and set "VT" high to enable transmission. On the receiver side, you may use +5VDC(aka VCC) for power and read the output from D0~D3. "TE" will indicate thenever there is changed data incoming.
Warning: This kit is not suitable for data transfer but remote control. It is safe for 2 command per second.
Note: The Antenna must be straightened before power up or the module might be damaged.
• Supplier code : WLS106B5B