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953
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Только розница
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3
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артикул
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опт, мелкий опт
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наличие
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Receiver board the main parameters
Operating frequency : 315M
Voltage: DC5V
Operating Current : ≤ 3mA ( 5.0VDC )
Working Principle : super-regenerative
Modulation: ASK
Encoder chip : SC2272 (PT2272, PT2294), the chip is compatible with
Sensitivity: better than - 105dBm ( 50Ω )
Output signal: the interlock (L) or lock (M) or self-locking (T) , before the seller in order to illustrate Select Which
Remote control distance : 20 ~ 50 meters ( open )
Pin and instructions for use:
Pin name of the function description
1 VT output state indicator ( less )
2 D3 data output
3 D2 data output
4 D1 data output
5 D0 data output
6 5V positive power supply
7 GND negative power
8 ANT connected antenna side
Receive modules, a total of eight external interfaces, there are English. "5V" to supply cathode, the "D0, D1, D2, D3," says output, "GND" to supply anode, "ANT" antenna port. Received module of seven root introduction feet respectively for D3, and D2, and D1, and D0, and GND, and VT, and VCC, which VCC for DC5V of power end, GND for grounding end, VT end for decoding effective output end, as long as launches device of data code has output, VT are can synchronization output high level; D3, and D2, and D1, and D0 is 2,262 decoding chip of four bit data output end, has signal Shi can output 5V around of high level, drive current about 2mA, and launches device of four bit data code output one by one corresponds to. Received module does not welding antenna also can received signal, for improve received sensitivity, can with a root length about for 23 cm of soft wire directly welding to antenna hole Department, figure in the RC by means of is oscillation resistance, received module and launches device of shocks resistance needs match to work, I shop received module with of is 270K or 820K resistance, can respectively and 1.5M or 4.7M oscillation resistance of launches device supporting using. Fixed code transmitter can use my store four-button remote control or transmitter module with encoding road, such as matching with the other transmitters, transmitter parameters must be provided.
Ссылки по теме:
Wireless Remote Control PT2272 for Arduino
Running TX433 and RX433 RF modules with AVR microcontrollers
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