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DS18B20 Bluetooth Thermometer
Posted on Friday, December 17, 2010   •   Category: PIC

DS18B20 Bluetooth Thermometer

One morning I woke up and wanted to know what the temperature outside was, and instead of running over to Home Depot and picking up a $2.00 glass thermometer, I decided to build my own wireless temperature sensor. At the heart of the board is a PIC12F675 microcontroller in an SO8 package. The right-hand side of the board houses the linear power supply (LP2950), bottom-center is the DS18B20 1-Wire temperature sensor, and out in left-field you can see the Sure TTL Bluetooth Module.

     UV LED Controller using a PIC 16F628A Microcontroller
     Relay Timer with PIC16F628
     USB DS1820 PC Thermometer
     RS232 Serial Port PIC Programmer
     PIC18F2550 Project Board
     PICkit 2 PIC Programmer
     PIC12F675 - Flashing LED
     Serial LCD Controller
     PIC Controlled Relay Driver
     PAL/NTSC Video Text Generator
DS18B20 Bluetooth Thermometer

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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