Tag Archives: Sensor

Temperature Monitor with ESP8266


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


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]

CCS811 – Digital CMOS gas sensors for wearables & IoT


by Graham Prophet @ edn-europe.com:

Cambridge CMOS Sensors is a semiconductor company that designs gas sensor solutions to monitor the local environment; its CCS811 is the first digital product in its CCS800 product family of ultra-low power miniature gas sensors.

The CCS811 integrates a metal oxide gas sensor with a microcontroller sub-system which enables Indoor Air Quality Monitoring, ease of design, extended battery life and reduced system cost for smartphones, wearables and connected home devices. It is based on CCS’s Micro-hotplate technology which enables a highly reliable solution for gas sensors, very fast cycle times and a significant reduction in average power consumption compared with traditional metal oxide gas sensors.

CCS811 – Digital CMOS gas sensors for wearables & IoT – [Link]

Sensor Technology for Health and Fitness Applications


By Jon Gabay @ digikey.com:

Determining the state of our health has always been a matter of finding a way to monitor and measure the body’s most basic functions. Before instrumentation, visual indicators were used that allowed us to know, for example, what our body temperature should be, what a healthy pulse is, and what an acceptable respiration rate is.

Today, with an aging population more people now need some sort of portable health monitoring, which could take the form of devices that, among other things, dispense medication at regular intervals, stimulate the heart, or measure blood sugar levels and inject insulin. This article looks at medical- and fitness-sensor technology—contacted and contact-less, placed on the skin, subcutaneous, or internal—that now or soon will be available to design engineers. All parts, tools, and data referenced here can be found on the Digi-Key website.

Sensor Technology for Health and Fitness Applications – [Link]

Arduino Display for Liquid Flow Sensors


by wb8nbs.wordpress.com:

This project was done for a Friend Of a Friend. He needs to monitor water flow rate and quantity for his solar heating projects. He is mainly interested in this two inch sensor but also sent along a small plastic hose bib type similar to the Adafruit 828. Both of these sensors are turbine types, water flow spins a plastic wheel which magnetically triggers a pulse output proportional to the speed at which the wheel is turning. There’s lots of these sensors made for irrigation and industrial processes.

Arduino Display for Liquid Flow Sensors – [Link]

Adding Sensors to Monitor Hive Health


by Nathan Seidle @ makezine.com:

The Digital Beehive uses Wi-Fi to broadcast a beehive’s weight, humidity, temperature, and battery voltage every minute to SparkFun’s data channel service called Phant. The raw data can be seen here but you can view some prettier graphs of the data here on analog.io (sign-in required).

Adding Sensors to Monitor Hive Health – [Link]

Humidity sensor using 8051


by circuitstoday.com:

This project is about a simple humidity sensor based on 8051 microcontroller. Humidity sensor is also called hygrometer. This circuit can sense relative humidity (RH) from 20% to 95% at an accuracy of 5%. The humidity information is displayed on a 16×2 LCD display. A relay is also provided which is set to be active when the humidity crosses a certain trip point. The circuit is mains operated and it is very easy to install. DHT11 is the humidity sensor used here. The details and working of the DHT11 humidity sensor is given below.

Humidity sensor using 8051 – [Link]

Multifunction biosensor/vital signs monitor for wearables, from ams


by Graham Prophet @ edn-europe.com:

Sensor and mixed-signal IC specialist ams (Graz, Austria) has applied optical detection techniques to produce a sensor capable of accurate heart rate measurement; the company says its device is the first “total solution for 24/7 heart rate measurement for wearables”.

AS7000 is the first in what is to be a family of health/fitness solutions from ams, for wearable devices. The AS7000 solution incorporates a highly integrated optical sensor module accompanied by software to provide the highest accuracy optical heart rate measurements (HRM) and heart rate variation (HRV) readings, backed by opto-mechanical design-in support. The 24/7 reference is to indicate that ams intends the device for products that are worn continuously, rather than (for example) only during periods of exercise.

Multifunction biosensor/vital signs monitor for wearables, from ams – [Link]

Get rid of unpleasant odors easily and effectively


USM-MEMS-VOC module evaluates rate of air pollution by contaminants such as cigarette smoke and cooking odors and allows control of air ventilation system on demand.

Modul USM-MEMS-VOC is based on the innovative and highly stable TGS 8100 MEMS semiconductor sensor TGS8100 from Figaro. In the presence of detectable gas, sensor resistance decreases depending on gas concentration in the air. New technology allows very rapid response to gas concentration change. The USM-MEMS-VOC reacts within 8 seconds.

The module evaluates ratio of sensor resistance in clean air (base level) to sensor resistance in polluted air and calculates air quality in range 0 to 100%. It communicates through UART interface. Besides that it provides PWM signal (185Hz) with pulse width proportional to air quality and three binary outputs which turns on when air quality reach 25%, 50% and 75%.

The module allows using of external I2C temperature/humidity sensor for measuring and also to temperature/humidity compensation of TGS8100. USM-MEMS-VOC and TGS8100 can be found in our standard stock offer.

Get rid of unpleasant odors easily and effectively – [Link]