The excellent performance of the receiver module, using a digital process technology, with a strong anti-interference, stable performance, high reliability, non-directional, long life, undisturbed Japan imported chips, high stability, low power consumptionsimilar remote control does not have any interference garbled phenomenon, the transmitted signal of the wireless receiver, remote control distance, can pass through walls, no direction. Supporting the use of any of the same frequency remote control can be and market fixed code, learning code.
Super-regenerative receiver module LC oscillator circuit includes amplifier shaping output data signals to TTL level directly to the decoder, the use of extremely easy, and inexpensive, it is widely used. The small size, high sensitivity; frequency point debugging easy, short lead times; consistency of product quality, cost-effective, wireless remote control market, the largest amount the most widely used as a high-frequency receiver module. The receiver module has a wide receiver bandwidth, typically ± 10MHz, factory tune in 433.92MHZ DC5V power supply receiver module.
Static receiver module operating current of 4mA, the receiver module factory output noise output, if there are special requirements can be changed to the noise-free output, but will reduce receiver sensitivity.
Receiver module specification:
Operation voltage: DC5V
Static Current: 4MA
Receiver frequency: 433.92MHZ; 315 Mhz
External Antenna：32CM signal wire，spiral
Transmitter Module Specification:
Operating voltage :3-12V
Operating frequency: 433.92MHz; 315Mhz
Standby current: 0mA
Operating current :20-28mA
Transmission distance:> 500m (open to receiving plate sensitivity at-103dBm distance of more than)
Output Power: 16dBm (40mW)
Transfer rate: <10Kbps
Modulation mode: OOK (Amplitude Modulation)
Operating Temperature: -10 ℃ ~ +70 ℃
Size: 19 × 19 × 8mm
This is a widely use module in many different application, the cost is very low and easy to use. You have to use the MCU to simulate decode and encode process as the IC PT 2262 and PT2272. 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. Excuse for the documentation, we will work on them.
We tried them using the guide from Sparkfun, it’s compatible. The only difference is in package, of some excess GND pins. More over, we will make more RF modules ourselves with different frequency and capacity.