In a previous article , I discussed three common thermometer sensors used by Arduino makers. It utilizes a TH02 sensor that can meet measurement needs of general purposes. Grove - I2C High Accuracy Temp_Humi Sensor SHT35. What purpose serve the small pieces of PCB on either side of the sensor? From this I would deduce that the DS18B20 is quite a good sensor for the price. The MCP9808 is a very accurate temperature sensor for your Arduino. Sensors. The very low measurement noise of the sensor can for example enable you to use time constant compensation based on the current rate of temperature change without unbearable measurement noise. Suggest corrections and new documentation via GitHub. This project will most likely also work without a logic level converter on a 5V Arduino, because the over voltage protection should protect the 3.3V temperature sensor, but using the over voltage protection for level shifting is a bad decision in terms of long term reliability. Therefore we would require the most accurate temperature sensor we could find. Reply There are a number of breakout boards, modules, etc. Still, it is straightforward to perform the necessary conversions should the user wish to work in floating-point format. There is also a very low amount of measurement noise while using the tsys01, I can get almost a hundred samples per second for a few seconds and have all of the values be within 0.01 degrees celsius of each other in my room. By using these parameters it is possible to calculate the real temperature value usign a fourth degree polynomial in the Arduino. This means that it just requires one data line (and GND) to communicate with the Arduino. The board has a 3.3V linear regulator providing low noise power for the sensor, includes the required capacitor, is 2.54mm bread board compatible(!!) The driver provided in the github repository handles these things pretty automatically. ClosedCube Arduino Library for ClosedCube HDC1080 Low Power High Accuracy Digital I2C Humidity and Temperature Sensor Breakout. The I2C connection requires only two data lines to be connected to the temperature sensor board. An interesting project/use for the tsys01 that comes to mind might be to calibrate cheaper temperature sensors for higher absolute accuracy. We need to sense temperature up to 80°C Additionally, if your Arduino is a 5V logic level device, you should consider using a 5V to 3.3V logic level converter. The tsys01 chip communicates outside with digital signals. This library is compatible with all architectures so you should be able to use it on all the Arduino In this instructable I will explain how to use the TSYS01 Temperature Sensor Board with an Arduino microcontroller for very accurate temperature measurements. Good to know that won't fry the expensive chip! The 24 bit ADC can provide enough resolution for any application(more than 0.0001°C), but some noise can be seen in the output if using more than 0.01°C of the resolution. Then sensor itself is always going to be analog. Arduino library for ClosedCube TMP116 0.2 C (max) High-Accuracy Low-Power I2C Temperature Sensor breakout board: ClosedCube TSYS01: Arduino library for Arduino library for TE CONNECTIVITY +/-0.1C 24-bit Digital Temperature Sensor: CM1106 I2C: Arduino library to control Cubic CM1106 I2C: Comp6DOF_n0m1 First, a … The connection you are using should similarly reflect the settings you are using in your sketch. 69 Good for 0-100% humidity readings with 2-5% accuracy; Good for -40 to 80°C temperature readings ±0.5°C accuracy; No more than 0.5 Hz sampling rate (once every 2 seconds) Body size 15.1mm x 25mm x 7.7mm; 4 pins with 0.1" spacing; But sometimes we need accuracy more than these sensors. Selecting the preferred device to communicate with is done by sending a unique I2C address before sending the data packets. * Bread Board, 4.50$: http://www.elecrow.com/16555cm-bread-board-with-sl... * Male-Female Jumper Wires x 7, 2.80$: http://www.elecrow.com/254mm-femalemale-jumper-wi... * Female-Female Jumper Wires x 5, 2.80$: http://www.elecrow.com/40-pin-dual-female-splittab... * You should by logic level converter for high reliability and make your own setup regarding that. Very interesting Instructable. I did some searching and it seems that the thermocouple wire has problems withstanding 1000 ºC so most thermocouples meant for temperatures that high have a metal tip. [] Grove - Temperature&Humidity Sensor (High-Accuracy &Mini) v1.0 This is a multifunctional sensor that gives you temperature and relative humidity information at the same time. (Search ebay for: "Pro Mini atmega328 3.3V 8M Arduino Compatible+CP2102 USB 2.0 to UART TTL module") Make sure the description says that it is the 3.3V version. The MOSI, MISO and SCLK data lines can be shared between multiple SPI devices, but the CS pin has to be used seperately for each device, because it is used to select the preferred device to communicate with. I agree that the Dallas DS18B20 is a easy, cheap and quite accurate sensor to use even though it doesn't reach the specification of the more expensive tsys01. Arduino library to control Grove - High Temperature Sensor. This allows you to wire multiple sensors to the same data wire. 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