1.Project description
“Thermometer warning to mobile phone” project use to warning temperature to mobile phone via Bluetooth application and there are Netduino plus 2 to measuring temperature ,Motion Sensor to touch will start to work and keep data of temperature in SD Card. Netduino plus 2 send warning to mobile phone by Bluetooth when temperature over the set value program will send “over temp” and if temperature not over program will send “normal temp”
2.Project Hardware
The circuit diagram of the project show in figure 1. A Netduino connect with SD card, Digital thermometer sensor DS1820 and Bluetooth MC - 05.SD card can be interfaced to Netduino using two difference protocols: SD card protocol and SPI (Serial Peripheral Interface) protocol. Digital thermometer sensor DS1820 can measure temperature in positive range (0-125 Celsius) .DS1820 is OneWire protocol, detail of DS1820 shown in figure 2.Blutooth module is asynchronous serial communication protocol. The connection between Netduino and MC – 05 is shown in figure 3.