Dangerous Prototypes · App note: Long twisted pair reads digital temperature sensor. A thermocouple datalogger based on the Arduino platform. September 7, 2010 AT 10:11 am A thermocouple datalogger based on the Arduino platform & (previously, rolling your own thermocouples)… It never hurts to collect more data, and I often find myself wanting to record temperatures from a few extra animals.
Most (all?) Commercial thermocouple dataloggers that will record temperatures from multiple thermocouples cost several hundred or thousands of dollars. I set out to put together a relatively cheap 8-channel thermocouple datalogger based on the open-source Arduino development platform. Thermocouple Type-K Glass Braid Insulated – K. Thermocouples are best used for measuring temperatures that can go above 100 degC.
K type thermocouple with glass over-braidingGood up to 500 degrees C (900 DegF)! Best used with a thermocouple amplifier such as the MAX6675 (pictured above, not included). Thermocouple Amplifier (MAX6675) breakout board. No comments yet. Sorry, the comment form is closed at this time. Online : Electronic Temperature-Controlled Relay. The heart of the circuit is the LM35DZ temperature sensor which is factory-calibrated in the Celsius (or Centigrade) scale with a linear Degree->Volt conversion function. The output voltage (at pin 2) changes linearly with temperature from 0V (0oC) to 1000mV (100oC).
Marc de Vinck I’m currently working full time as the Dexter F. Baker Professor of Practice in Creativity in the Masters of Engineering in Technical Entrepreneurship Program at Lehigh University. I’m also an avid product designer, kit maker, author, father, tinkerer, and member of the MAKE Technical Advisory board. Related. Online : XBee Wireless Temperature Sensor. Remote thermometer using Arduino. NXP Semiconductors - Digital Temperature Sensor and Thermal Watchdog. The LM75B is a temperature-to-digital converter using an on-chip band gap temperature sensor and Sigma-Delta A-to-D conversion technique with an over-temperature detection output. The LM75B contains a number of data registers: configuration register (Conf) to store the device settings such as device operation mode, OS operation mode, OS polarity and OS fault queue; temperature register (Temp) to store the digital temp reading; and set-point registers (Tos and Thyst) to store programmable over-temperature shutdown and hysteresis limits that can be communicated by a controller via the 2-wire serial I2C-bus interface.
The device also includes an open-drain output (OS), which becomes active when the temperature exceeds the programmed limits. There are three selectable logic address pins so that eight devices can be connected on the same bus without address conflict. The LM75B can be configured for different operation conditions. Online : How-To: Remote temperature sensing with Arduino.