You'll have to factor in the extra bits you need to transmit to be able to correct errors, and also the computational effort to correct the errors at the receiver, into your power design. So, there's a microcontroller somewhere that takes the data coming out of your receiver, and decoding them, correcting errors on the way. You'll definitely have to add error correction, unless you can live with the 1% bit errors that the datasheet says all measurements were made with. The Transmitter offers one-ways communication through 433.92MHz frequency at 1Kb data rate. Modulation: ASK Receiver Data Output: High - 1/2 Vcc, Low - 0.7v Transmitter Input Voltage: 3-12V (high voltage more. The quicker your reception is finished, the more you can turn off the receiver again, the less energy you used.īy the way, this is really a very basic receiver. Datasheet: Description: List of Unclassifed Man. Your 470R seems to be pretty terrible at that – 2.5 mA for 1 kbit/s, where other receivers ( example, see page 35, 36) do much more data with only a little more power. You can directly use it for your projects, such as wireless data transmission and remote control. and build the transmitting module and receiving module on the same board. Specification: RF Transmitter: Frequency Range: 433.92 MHz Supply Voltage: 3V 12V Output Power : 4 12 dBm Standard Operating Voltage: 5V RF Receiver. This is an ultra-long-distance 315MHz or 433MHz radio frequency link set, with VCO and PLL technology, stable frequency and strong anti-interference ability. This is an ultra-long-distance 315MHz or 433MHz radio frequency link set. You can make your receiver less hungry by turning it off and on, but that requires a fast "turn on" time.Īlso, your receiver should use as little watt per (bit per second) as possible. RF Transmitter and Receiver Link Kit - 315MHz/433MHz ¶. I have an answer where I explained why receiving needs much energy there's really no way around it.
That happens to be exactly the thing that the emergency pagers for firemen do. That shifts the power demand from the receiver to the transmitter. It requires, however, that the transmitter sends a preamble for 0.5s. 0.5 s, listen for a couple milliseconds, see whether there's a preamble going on, and else go back to sleep. If the battery voltage drops under the minimum voltage given in the technical specifications, the transmitter output power will drop and the. You can simply shut down the receiver for as long as you're not using it. Only skimmed through the datasheet, but as usual:
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