PIC based bluetooth thermometer

Jamie needed a thermometer so he could see what temperature is outside. Instead of purchasing he decided to build one so he could get more out of it. His system consists of PIC12F675 microcontroller which takes temperature readings from DS18B20 sensor. Instead of displaying data on some sort indicator he sends temperature value using Sure TTL Bluetooth module. Bluetooth module talks to MCU using Serial Port protocol, so it can be connected directly to MCY serial interface. Temperature values can be seen on terminal screen that are updated every 10s. Continue reading