Tag Archives: temperature

The world’s tiniest temperature sensor is powered by radio waves

wireless batterijloze thermometer van PhD Hao Gao, vakgroep Mixed Signal Microelectronics, EE TU/e

Researchers at the Eindhoven University of Technology in the Netherlands have created what they call the tiniest temperature sensor that is powered by the same wireless network it uses to communicate data. The sensor measures 2 square millimeters and needs no physical connection to send data. The current version of the sensor has a range of 2.5 centimeters but this is something to be improved in future versions.

The sensor contains an antenna that captures the energy from the router. The sensor stores that energy and, once there is enough, the sensor switches on, measures the temperature and sends a signal to the router. This signal has a slightly distinctive frequency, depending on the temperature measured. The router can deduce the temperature from this distinctive frequency.

The world’s tiniest temperature sensor is powered by radio waves – [Link]

Remote WiFi DHT11 Temperature an Humidity Display

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BoianM @ instructables.com shows us how to build a remote temperature and humidity display using DHT11 sensor and two ESP8266 modules. To program the ESP8266 modules a visual programming software is used.

The advantage of the ESP8266 over Arduino and other controllers is the builtin Wi-Fi. In this Instructable I will show you how with the help of Visuino you can use two ESP8266 modules to make a remote LCD Display for Temperature and Humidity DHT11 sensor.

Remote WiFi DHT11 Temperature an Humidity Display – [Link]

Monitoring Woodstove Temperature With A MAX31855 Quad Thermocouple BoosterPack

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Spirilis @ 43oh.com forum would like to monitor his woodstove temperature profiles so he build a plugin board for LaunchPad using the MAX31855 thermocouple to digital converter.

This BoosterPack is fancied as a baseboard plugging underneath the LaunchPad, with four holes for mounting studs in case I ever decide to fix it inside a permanent enclosure (probably one made of aluminum due to the heat). I could have pushed the Thermocouple terminal blocks out a little further to fit more launchpads, as I feel this is a bit tight. I chose a Tiva-C LP for my pics because it fits nicely but the BoosterPack is designed with low-power features, contrary to the MAX31855’s own design.

Monitoring Woodstove Temperature With A MAX31855 Quad Thermocouple BoosterPack – [Link]

DIY a Simple Automatic Humidifier

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loovee @ instructables.com has build an automatic humidifier that will monitor temperature and humidity and will act if the situation is not ideal.

Water Atomization is a perfect module for you to develop an atomizer or an atomizer module in your applications easily. With just a few simple steps, you can prototype an atomizer. It has Grove interface which makes it easy to be integrated into plenty of applications.

DIY a Simple Automatic Humidifier – [Link]

Howto Measure RTD over long distances

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Maurizio @ dev.emcelettronica.com tipped us with his latest article on how to measure Resistance Temperature Detectors over long distances.

There is a multitude of process parameters nowadays that need to be measured in the industrial environment (temperature, pressure, humidity, force etc.). Out of these, undoubtedly the most common one is temperature, as it influences most manufacturing parameters. It is no wonder then that many solutions have been developed over time to measure it. There are a few general categories any industrial temperature sensor will fall into: thermocouples, RTDs (Resistance Temperature Detectors), thermistors and integrated silicon sensors. There is no “best sensor” rather they all have pros and cons which need to be individually evaluated for each application.

Howto Measure RTD over long distances – [Link]

ATmega Alarm Clock & Thermometer Humidity meter

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nitram147 @ instructables.com has build a ATmega based alarm clock with temperature and humidity reading. Sensor used is DHT11.

First, let me introduce you my project. I made an Alarm clock with extended functionality & thermometer and humiditymeter. Everything started when my friend (who used to bring me some old electronic rubbish and I used to check if there’s not something useful) brought me some cashing register display similar like that. When I first see them I knew that I will made from it alarm clock.

ATmega Alarm Clock & Thermometer Humidity meter – [Link]

Temperature Monitor with ESP8266

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anistor @ instructables.com has build an ESP8266 based temperature monitor system using DS18B20 sensor.

This project will help you create a temperature monitor using an ESP8266 SoC and a temperature sensor (DS18B20) with next capabilities:

Measure Temperature
Send an email if temperature goes under a threshold
Monitor temperature and set threshold from a mobile App

Temperature Monitor with ESP8266 – [Link]

HDC1050 – low power Humidity and Temperature sensor

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The HDC1050 from Texas Instruments is a tiny 3 mm square combined humidity and temperature sensor. It can operate from a supply rail of 3 to 5 V and offers an accuracy of ±3 % on relative humidity measurement and ±0.2 ºC on temperature measurements. The typical supply current is 1.2 µA while operating at one sample per second and 100 nA in sleep mode.

HDC1050 – low power Humidity and Temperature sensor – [Link]

Build a Simple Toaster Oven Temperature Profile Controller

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Maurizio @ dev.emcelettronica.com has tipped us about his latest project. In this article he discuss how to build a simple toaster oven temperature profile controller using StickOS and CPUStick. This is the first part of the article.

Using a highly-integrated microcontroller running “StickOS BASIC”, it is possible to quickly build a toaster oven temperature profile controller for performing surface mount (SMT) printed circuit board reflow soldering at home. It is also possible to program a large variety of other general-purpose embedded system projects with minimal software effort, using only a terminal emulator and high-level BASIC algorithmic statements to manipulate the microcontroller (MCU) pins and peripherals.

Build a Simple Toaster Oven Temperature Profile Controller – [Part 1] [Part 2]