NRF905 Wireless Communication Transmission Module Arduino compatibile (PTR8000?+) With Antenna 433/486/915MHz
€6,98
Attualmente disponibile su ordinazione con consegna prevista entro 60 giorni circa dall'acquisto.
Quantità | Prezzo Unitario |
---|---|
12 - 49 | €6,77 |
50 - 99 | €6,63 |
100 + | €6,28 |
Product Description
NRF905 Wireless Communication Transmission Module
NRF905 basic characteristics
Transmission and reception functions-one, send and receive complete interrupt flag
433/868/915 operating band, 433MHZ open ISM band is license-free use
The emission rate 50KBPS, the external 433 antenna, open communication distance up to 300 meters, indoor communicationthe 3-6 layer can achieve reliable communication, strong anti-interference performance, strong interference barrier penetrationperformance.
Sending and receiving 32 bytes maximum, can the software settings to send / receive buffer size 2/4/8/16/32 bytes
170 channels to meet the multi-point communication and frequency hopping communications needs, network telecommunication, TDMA-CDMA-FDMA
Built-in hardware 8/16 of the CRC, the development of a more simple, stable and reliable data transmission.
1.9-3.6V, low-power standby mode only 2.5uA.
Built-in SPI interface, or through the I / O port simulation SPI implementation. The highest SPI clock can be large 10M
/ / NRF905 the registers configuration / /
unsigned char idata RFConf [11] =
{
0x00, / / the Configuration command / /
0x4c, / / CH_NO, configure the frequency range of 430MHZ
0x0C, / / output power 10db, not retransmission power saving as the normal mode
0x44, / / address width set to 4 bytes
0x20, 0x20, / / receiver sending valid data length of 32 bytes
0xCC, 0xCC, 0xCC, 0xCC, / / receive address
0x58, / / CRC charge Xu, 8-bit CRC, the external clock signal is not enabled, 16M crystal
};
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