- ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID SERIAL
- ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID FULL
- ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID ANDROID
- ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID CODE
- ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID PC
MaxTemp can later be changed, but the program needs a default value to start with. Initialization of variables needed for temperature controlįloat maxTemp = 30.0 // switch on led when temp > maxTemp int maxTempSensor = (int) ((maxTemp / 100 +. Status message structure // STATUS RED|GREEN|YELLOW|TMIN|TMAX|SECONDS|TEMP|THIGH=value Command structure // CMD RED|GREEN|YELLOW=ON|OFF // CMD TMAX|SECONDS=value // CMD SECONDS=value // CMD STATUS
ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID SERIAL
Serial Parameters: COM11 9600 8 N 1 // \r or \n to end command line // Bluetooth is on Pin 0 & 1 9600 speed
The following step will provide a detailed explanation of it.Ĭommand and message structure as described in the previous step
ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID CODE
You can download the sketch code from the attached file. You can test the sketch by issuing commands and viewing responses in Arduino IDE's Serial Monitor: make sure to select Carriage Return in the dropdown options at the bottom.
ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID FULL
STATUS RED|GREEN|YELLOW|TMAX|SECONDS|TEMP|THIGH=valueĪrduino will answer to the STATUS command with full status while on interrupt it will report a shorter version.ĬMD RED=ON switches the red LED on CMD GREEN=OFF switches the green LED off The command structure defined in the program is:ĬMD RED|GREEN|YELLOW=ON|OFF CMD TMAX|SECONDS=value CMD SECONDS=value CMD STATUS (in my tests this has not been the case, but for sure it won't do any harm).
ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID PC
Warning: The Bluetooth module may interfere with PC to Arduino communication: disconnect VCC when programming the board. Transmit and Receive refer to each device, therefore a transmission coming out of TXD pin of the Bluetooth module must be received by Arduino on the Rx Pin 0 similarly a transmission going out of Arduino Tx Pin 1 must reach the JY-MCU Bluetooth module on its RXD pin. The connections of the Bluetooth module can be a little confusing since TXD goes to Rx and RXD goes to Tx: here's an explanation. The sketch will also make use of Arduino built-in LED on Digital Pin 13. Step 4): Connect the provided cable to the JY-MCU Bluetooth module on one side and to the breadboard to the other side connections are as follows: VCC 5V GND GND TXD Pin 0 (Rx) RXD Pin 1 (Tx) Step 3): Place the TMP36 sensor on the breadboard and connect its pins to 5V, Ground and A0 Arduino Pin. Step 2): Place the LEDs on the breadboard and connect their catodes to ground connect their anodes to Digital Pins through a 220 Ohm resistor each: Yellow to Pin 3, Green to Pin 4 and Red to Pin 5. Step 1): Connect Ground and 5V from Arduino to breadboard. Since the Bluetooth module in all smartphones is of Master type, the one we need for Arduino must be a Slave (this has nothing to do with client-server communication as we'll see later in the app description).ġ x Arduino Uno 3 x 220 Ohm Resistrors 1 x Green LED 1 x Yellow LED 1 x Red LED 1 x TMP36 Temperature Sensor 1 x JY-MCU Bluetooth Slave Module (see introduction) 1 x Breadboard wires
To make things very simple, there are two types of devices: Master and Slave a Master can communicate with more than one Slave while a Slave can communicate with a single Master at a time, Master-Master and Slave-Slave communication is not allowed.
ARDUINO UNO SOFTWARE DOWNLOAD FOR ANDROID ANDROID
The one we need to make the connection between Arduino and the Android phone is a Slave Module. This module is available in several configurations, and this has been the first hurdle to overcome. The JY-MCU is a class-2 Bluetooth module that acts like a serial port with no need of any software configuration on the Arduino. There are many Bluetooth modules and even Arduino shields: my choice has fallen on JY-MCU that I bought from Hobby Components in the UK. A simple command structure enables the app to send parameters and values to Arduino and the other way round. In addition, a timer interrupt makes it check for temperature via a TMP36 sensor: if temperature is greater than a threshold a LED is lit every n seconds (where n is a parameter set through the app) a status report is sent to the app. In this project a serial Bluetooth module is used to create a connection between Arduino Uno and an Android app that I created with MIT App Inventor.Īrduino listens for commands to light some LED's or show its status.
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