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Burglar alarm. Gauges for Arduino on Android. Sensor reading from Arduino can be read on your Android device with Bluetooth module.

Gauges for Arduino on Android

You can display this sensor data on the beautiful gauges. We need some software and hardware carpentry to pull this through. Here is the screenshot of the temperature reading measured using the Arduino UNO on the Samsung 10.2 tablet. You can have multiple sensors and display using gauges on Android device. Things You Need A JY-MCU bluetooth module A temperature sensor (TMP 35) Arduino UNO Connections on Breadboard Arduino Sketch Open the Arduino and copy the following code into it. Const int temperaturePin = A0; void setup() { Serial.begin(9600); } void loop() { float voltage, degreesC ; char message; voltage = getVoltage(temperaturePin); degreesC = (voltage - 0.5) * 100.0; while (Serial.available() == 0); message =; if(message=='T'){ Serial.print(degreesC); } Serial.flush(); } float getVoltage(int pin) { return (analogRead(pin) * 0.004882814); } Explanation of the above code is like this.

How to control arduino board using an android phone and a bluetooth module. The circuit is as simple as it gets so you probably already have most of them.

How to control arduino board using an android phone and a bluetooth module

You will need: - arduino board - bluetooth serial module (I used a btm222 module on a breakout board with an inbuilt regulator ) - an LED - resistor (100ohm) - wires - breadboard The only problematic part here is the bluetooth module. There are different modules all over the internet so be sure you check the pinout in the datasheet of the one you get as it can differ. Also notice that there are two general classes of bluetooth modules: Class 1 has range of about 100 meter (300 feet) Class 2 has range of about 10meter (30 feet) In case you're wondering they are entirely compatible and you can only get 100 meter range if both of the devices (ie the mobile and the serial module) are class one.

If one of it is class 1 the maximum range is lower. The bluetooth serial module I got has the following pins from left to right (ground, RX, TX, not connected, VCC). DeekRobot: Arduino Pro Micro avec ATMega32U4 pour 10€ Arduino dispose dans sa gamme de microcontrôleurs de plusieurs cartes électroniques intéressante.

DeekRobot: Arduino Pro Micro avec ATMega32U4 pour 10€

Arduino Uno est probablement la plus connue et la plus utilisée mais il existe des microcontrôleurs proposant plus de fonctionnalités ou bien un format plus condensé. J’utilise beaucoup la carte électronique Arduino Leonardo et plus précisément la carte Arduino Pro Micro, que l’on trouve pour moins de 10€ sous le nom de DeekRobot Pro Micro. Cette carte Arduino Pro Micro à la particularité d’être détectée et reconnue comme un Arduino Leonardo qui se vend bien plus cher, tout en étant plus petite et en proposant les même fonctionnalité. Découvrons les fonctionnalités du clone de la carte Arduino Pro Micro: le DeekRobot Pro Micro. Billwaa's Blog. This is going to be a easy and fun one, analog joystick for Arduino.

Billwaa's Blog

I got this one for around $6 from Adafruit. Awesome and easy to use. Essentially, this is what they use in all those consoles, PS1, PS2, PS3, PS4… Some stuffs you can make with this: robotic servo control, RC motor speed controller… Continue reading Last time I update this blog was almost a year ago… during this time, lots happened. So, ultrasonic sensor.

Fabriquer son arduino

Divers. Lcd et touch. Bootloader. TeleInfo. Battery. Case box. Chauffage. Travaux Pratiques. Debuter. GitHub. 1wire. Power. Alarme. Sensors. Communication.