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THRESHOLD is the maximum temperature we wish to maintain. When the temperature rises too high, a fan is switched on. A small HYSTERESIS value is used to prevent the fan rapidly switching when the ...

The DS18B20 is a digital temperature sensor from Dallas Semiconductors, which is now part of Maxim. Aspencore network. ... To be able to use the DS18B20 one-wire digital temperature sensor with the ...

Use an ATtiny85 to display sensor values on an I2C LCD (equiped with PCF8574): GY21P (Si7021+SHT21) I2C sensor, temperature and relative humidity DS18b20 Dallas sensor, one wire, temperature I had ...

First of all, there are definitely simpler ways to monitor remote temperatures, but [Mike]’s remote MQTT temperature sensor and display project is useful in a few ways. Not only does it lay o… ...

The past month or so I’ve been playing with the Maxim DS1307 Real-Time-Clock and DS1621 Temperature Sensor ICs. I hooked them up to an Arduino Uno board with a Parallax Serial 16×2 Character LCD. I ...