![]() The resulting list items are then displayed in the corresponding labels. To obtain the values from the sensor, the text need to be split according to the separator “x”. Honeywell ABP HTU21D / Si7021 / SHT21 Hydreon Rain Sensor Honeywell ABP. We created a simple application using App inventor 2.The data from the Arduino is sent as a text to the Android application. #include SoftwareSerial HC06 ( 2, 3 ) // Constants #define DELAY 1000 // Delay between two measurements in ms // Parameters const int sensorPin = A0 // Pin connected to sensor // Variables float voltage, temperature void setup ( void ) Home Measurement App To deal with multi-data, the data are concatenated into a String with a separator which make it easier to decipher. Once the temperature is measured it is sent to the smartphone via the Bluetooth module. To be able to convert the measured voltage into a physical value. We search the datasheet of the sensor LM35 to find the temperature range and the conversion rule between voltage and temperature. Multiple thermometers can be connected on the same wire because every one has it's own internal address. ![]() The DS18B20 temperature sensor is an electronic thermometer with a high accuracy. ![]() N.B.: The module displayed in Fritzing is a HC-05 but it has the same pinout as HC-06. Arduino Software There are two main elements to the Arduino Software, the temperature sensors, and the Bluetooth module. (Sachendra, 2019.) from publication: Wireless bluetooth-based SIPESUT (Body Temperature. It is a simple project in which we use Bluetooth module, serial communication with a way to deal with multidata and a smartphone Android application made withh App Inventor 2. Arduino and the HC05 communication section and the LM35 sensor. A temperature sensor library for Arduino S8UART: Arduino library to control SenseAir S8 CO2 sensor using UART communication S9706. The sensor itself is implemented using Arduino. To get the temperature we just need to measure the output. DFRobotBT401: This Bluetooth module features Bluetooth/U-disk/TF-card playback, and Bluetooth call function, supporting simple and clear serial port control function, BLE pass-through, and SPP. You run mobile app, connect over Bluetooth and see the screen of Smartphone or tablet to control the temperature. Here is a small domotic project that consists in measuring your home temperature and collect the data on your smartphone. The sensor measures the small change and outputs an analog voltage between 0 and 1.75VDC based on it. ESP32/ESP8266 with MPU6050 Accelerometer, Gyroscope, and Temperature Sensor ( Arduino IDE)Link to article. This domain is known as domotics (especially for home) and IoT (Internet of Things) Bluetooth connectivity, onboard CH340 and keys. One interesting branch of robotics is making existing objects smarter which helps in our everyday life.
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