HC-11 433MHz wireless RF serial UART module CC1101 5V 3V AT command
1:3.4 ma silent current ultra-low power consumption.
2: distance, using distance 1 ~ 40M. (Less than 1M, the module does not work).
3: Support wide voltage 3.3V ~ 5V
4: Support for serial pass-through mode, replace the serial line (half duplex)
5: IO support level to follow, also means that you can transfer the digital level models.
6: Support level IO latch mode
7: You can set the frequency, set the address, such as dozens of commands, automatic filtering
8: Module size: 27.8mm × 14.4mm × 4mm.
9: suitable for network design
1.33MHz ordinary wireless, open channels, serial pass-through. To-many, many-to-many transmission. Five foot pin, easy to use.
Configuring pin. Left unconnected.
3 factory default baud rate: 9600, modules to each other.
3 In 2400, 4800 baud, you can STC microcontroller wireless remote upgrade and download the program.
Two ways to enter AT command mode The first: After switching voltage of 3.3V, then the fifth pin is pulled low (has been low), the module is in AT command mode, pulled exit command mode. The second: power outages, fifth pin first then low again on the power, over 1S after entering the AT mode, pulled exit command mode. Command as follows: 1. AT Send this command will return OK characters. Example: the AT Returns OK 2. AT + V Module returns the version information. Example: send AT + V returns HC-11_V0.0 3. AT + Bxxxx The baud rate is set to xxxx. This value can be 2400, 4800. Example 1: send AT + B4800 return OK-4800 Example 2: send AT + B115200 return OK-115200 4. AT + Cxxx Set the communication channel. From 001 to 127 is optional. Example: send AT + C058 returns OK-058 5. AT + FUx Switching serial pass-through mode. 1 to 4 the value x is optional. Example: send AT + FU1 return OK + FU1
Wireless serial module HC-11 with the computer serial port connection
Wireless serial module HC-11 with 3.3V single-chip connections
wireless serial module HC-11 with 5V MCU
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