Low Quality HC-12 HC12 Si4463 433MHZ RF Wireless Serial Module With Antenna
This is copy HC-12 Wireless Transceiver Modules 433Mhz . HC-12 Wireless Transceiver Modules 433Mhz are wireless serial port communication modules and its low quality product with low range. given description is only for standard high quality hc-12 module not for this low quality one. If you want to buy good quality then follow this link
https://digilog.pk/products/433mhz-hc12-hc-12-si4463-wireless-serial-port-module-in-pakistan?_pos=1&_sid=115ca9b41&_ss=r
Here you go.
It is based on SI4463 RF chip, it has built in microcontroller, and can be configured using AT commands, Maximum output power is 100mW (20dBm) and receiver sensitivity differs from -117dBm to -100dBm, depending on transmission speed. It accepts 3.2V-5.5V and can be used with 3.3V and 5V UART voltage devices (3.3V safe).
- FU1 – moderate power saving mode with 250000bps “over the air” baud rate. Serial port baud rate can be set to any supported value
- FU2 – extreme power saving mode with 250000bps “over the air” speed. Serial port rate is limited to 1200bps, 2400bps, 4800bps
- FU3 – default, general purpose mode. “Over the air” speed differs depending on serial port speed. The same goes for maximum range:
- 1200bps ~ 1000m
- 2400bps ~ 1000m
- 4800bps ~ 500m
- 9600bps ~ 500m
- 19200bps ~ 250m
- 38400bps ~ 250m
- 57600bps ~ 100m
- 115200bps ~ 100m
- FU4 (available in version 2.3 or newer) – long range mode. “Over the air” speed is limited to 500bps and serial port speed to 1200bps. Because air speed is lower than port speed, only small packets can be send: max 60 bytes with interval of 2 seconds. In this mode range is increased to 1800m.
Configuration:
-
AT
– test command. It will returnOK
if AT interface is enabled -
AT+Bxxxx
– set serial port baud rate. For example,AT+B57600
set baud rate to 57600bps -
AT+Cxxx
– set radio channel. Channels start from001
at 433,4MHz. Each next channel adds 400kHz. Channel100
is 473,0MHz.AT+C002
will set frequency to 433,8MHz. Two HC-12 devices that creates a wireless link have to operate on the same frequency -
AT+FUx
– set device mode: FU1, FU2, FU3 or FU4. Two HC-12 devices that creates a wireless link have to use the same mode -
AT+Px
– set device transmitting power. For exampleAT+P2
sets power to 2dBm (1.6mW)- -1dBm (0.8mW)
- 2dBm (1.6mW)
- 5dBm (3.2mw)
- 8dBm (6.3mW)
- 11dBm (12mW)
- 14dBm (25mW)
- 17dBm (50mW)
- 20dBm (100mW)
-
AT+RX
– retrieve all parameters: mode, channel, baud rate, power -
AT+V
– retrieve module version -
AT+DEFAULT
– reset module parameters to default settings
- Long-distance wireless transmission (1,000m in open space/baud rate 5,000bps in the air)
- Working frequency range (433.4-473.0MHz, up to 100 communication channels)
- Maximum 100mW (20dBm) transmitting power (8 gears of power can be set)
- Three working modes, adapting to different application situations
- Built-in MCU, performing communication with external device through serial port
- The number of bytes transmitted unlimited to one time
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