RF LINK 315MHZ KIT
Warning: this kit is not suitable for data transfer but remote control. Safe for 2 commands/second.
Specification RF LINK 315MHZ KIT
- Frequency: 315Mhz.
- Modulation: ASK
- Working Voltage: 3-12VDC（Transmitter), 5VDC(Receiver)
- Receiver Sensibility: -105dbm
- Transmission Distance: 100m in open ground
Usage RF LINK 315MHZ KIT
The Transmitter and Receivers modules both have a hardware selectable address setting and will only communicate with each other if they are assigned the same unique address. Both modules have 8 different address pins, with three possible settings for each pin, High, Low, and Unconnected, for a total of 6561 possible addresses.
The first step in pairing a Transmitter and Receiver is selecting the address. If you are only using one pair the easiest address to use is to leave all of the pins unconnected.
Based on the address you have selected set each bit, High, Low, or Unconnected, using a jumper.
Based on the address you have selected set each bit, High, Low, or Unconnected, using a solder bridge.
Using with Arduino without Encoding and Decoding
If you only use one pair of this kit, then you don’t need to use the encoding and decoding function.
Step1:Connect 5V and GND from Arduino to the Transmitter.
Step2:Move the jumper from the channel selection pins.
Step3:Connect the channel pins(left column) to Arduino Pin D3~D6.If you only want to control several of these channels, then leave others open.
Step4:Connect the enable transmitting pin to Arduino Pin D7.(Ignore the silk screen +12V on the board)
Step5:Download the demo code to your Arduino libraries, and run.
Step1:Power the receiver the proper 5V and GND.
Step2:For other pins, D0~D3 are corresponded with the channel pins D6~D3 of transmitter.These pins are normally LOW, and when the transmitter is running, the corresponding output of each channel will be set HIGH. VT will be set HIGH whenever there is a channel set HIGH.
Working Voltage: 3-12VDC（Transmitter), 5VDC(Receiver)
Receiver Sensibility: -105dbm
Emission Distance: 100m in open ground
Default 315Mhz receiver, exchangable with 433Mhz receiver.
This kit is not suitable for data transfer but remote control. Safe for 2 commands/second.
Encoding and Decoding
The popular link is like this: MCU -> Encoder -> Transmitter —— Receiver -> Decoder -> MCU, 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 side. 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.