PIC Dual Thermometer with serial output

This one is using a 16F876 PIC, MCP1047A temperature sensor ( X2 ), MCP1541 voltage reference and MCP6022A opamp.

Constant Temperature Circuit

This is a generic low power temperature controller that can be used for stabilizing temperature sensitive electronic circuits. It was built to stabilize a radio frequency VFO (Variable Frequency Oscillator) for ham radio applications.

Measure Temperature with the Dallas Maxim DS1820 sensor?

Sometimes we have a need to measure the temperature of a room, of an object or just maybe a terrarium;

Transistor forms RS-232C digital thermometer

Temperature monitor/controller

using AVR 2313 and DS1621

Circuit protects system from overheating

monitors the temperature of the pc board and the die temperature of a CPU, an FPGA, or another IC with an on-chip temperature-sensing transistor

Parallel port provides high-resolution temperature sensing

This circuit gives you high-resolution temperature sensing at low cost is by using only one chip attached to the PCs parallel port. The Dallas Semiconductor DS1722 digital thermometer allows measurement resolution as fine as 0.0625°C in digital form and w

Use RS-232C port to measure pressure

simple circuit and accompanying software turn a pressure sensor into an accurate and cheap pressure digitizer that works with any PC's RS-232C COM port