Arduino Serial Bluetooth Remote Control With Joystick
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This module contain master mode and slave mode, the master module can only communicate with slave module and the slave module not only can communicate with master module but also can communicate with PC、Mobile Phone etc. By now , this module can only support the baud rate at 9600.
It adopt traditional STC12C5201AD series microcontroller.
And it is programmable.
1、Working voltage: 4-5.5 V.
2、It support serial upgrade firmware.
3、Data transmission by bluetooth wireless serial port.
4、3 D rocker + 6 push buttons.
Click to download this software above
The serial port received date ,the value of X and Y are separately show the migration of the joystick at the X and Y directions, and the median are: X=+000，Y=+000, the maximum range from -127 to +127, specific range according to actual circumstances.
Under the not weighted condition of the joystick the X=+000，Y=+000,the module don't transmit any data until the status of joystick changes.
Press any one of button from 1 to 6, then the module will transmit the correspondence key = ? (for example press the first button then the module will send key = 1).
Under the the joystick there is a button , when you push the joystick downto the vertical direction the module will send Key=0.
That is to say ,the output data of module is Key=？(from 0 to 6)，X=？，Y=？（from -127 to +127）.
Click to download this software above
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And the bluetooth module :
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Default serail port setting : 115200(optional 4800,9600,19200), N, 8, 1
Running in slave role: Pair with BT dongle and master module.
1、Specification
Frequency : 2.4GHz ISM band
Modulation : GFSK(Gaussian Frequency Shift Keying)
Emission power : ≤4dBm, Class 2
Sensitivity : ≤-84dBm at 0.1% BER
Speed : Asynchronous: 2.1Mbps(Max) / 160 kbps, Synchronous: 1Mbps/1Mbps
Security : Authentication and encryption
Profiles : Bluetooth serial port
CSR chip : Bluetooth v2.0
Wave band : 2.4GHz—2.8GHz, ISM Band
Protocol : Bluetooth V2.0
Power Class : (+6dbm)
Reception sensitivity: -85dBm
Voltage : 3.3 (2.7V—4.2V)
Current : Paring - 35mA, Connected - 8mA
Temperature : -40℃~ +105℃
User defined Baud rate : 4800, 9600, 19200, 38400, 57600, 115200, 230400,
460800,921600 ,1382400.
Dimension : 26.9mm*13mm*2.2mm
2、Usage
Coupled Mode: Two modules will establish communication automatically when powered.
PC hosted mode: Pair the module with bluetooth dongle directly as virtual serial.
3、Application:
Pin definition :
* PIO8 connects with LED cathodea with 470ohm series resistor in between. LED NEGATIVE connects to ground. It is used to indicate the module state. After powered on, flashing intervals differ in different states.
* PIO9 is used to control LED indicating paring. It will be steady on when paring is successful.
* PIO11, module state switching pin. HIGH -> response to AT command; LOW or floating -> regular work status.
* With build-in reset circuit, reset is completed automatically after powered on.
* Steps to set to MASTER:
* Set PIO11 HIGH with a 10K resistor in between.
* Power on, module comes into AT Command Response Status
* Open HyperTerminal or other serial tool, set the baud rate 38400, 8 data bits, 1 stop bit, no parity bit, no Flow Control
* Via serial port, send characters "AT + ROLE = 1 r n",if successful, return "OK r n", where r n is carriage return.
* Set PIO11 LOW, re-power, then in Master state, automatically search for slave module and connect.
Download the datasheet
Download the manual
Download the AT Command
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