Here is a small collection of circuits that provide an interface to sensor transducers including pressure, temperature, and others. ere’s a resistance temperature detector (RTD) interface circuit that is compatible with a range of standard RTD sensors including PT100. Output is digital via SPI bus. This circuit provides a highly integrated analog sensor signal conditioner […]
Maxim’s Sensor Interface Circuits Read More »
In this new tutorial, we will be interfacing a LM35 based temperature sensor with ATMEGA32. The 3 main types are thermometers, resistance temperature detectors, and thermocouples. All three of these sensors measure a physical property (i.e. volume of a liquid, current through a wire), which changes as a function of temperature. In addition to the
Interfacing LM35 to ATMEGA32 Read More »
The MAX31820 ambient temperature sensor provides 9-bit to 12-bit Celsius temperature measurements with ±0.5°C accuracy over a +10°C to +45°C temperature range. Over its entire -55°C to +125°C operating range, the device has ±2.0°C accuracy. The device communicates over a 1-Wire® bus that, by definition, requires only one data line (and ground) for communication with
1-Wire Ambient Temperature Sensor Read More »
The Product: Sol-X developed the GDB to be the best open source prototyping platform on the market and we intend it to replace the Arduino Uno® as the preferred high-level prototyping environment. It is up to 40x faster, 70% smaller, has integrated high power drivers (capable of handling 12x the current), with more flexible Input
An open source,faster,better prototyping standard Read More »
A few months ago, I saw an instructable by fjordcarver on how to build a coloursensor with an RGB led and an LDR. It inspired me to try whether I could improve his design. Here are the things that I wanted: The sensor should have as few pins as possible. It should work as a
Build your own (at)tiny colour sensor. Read More »
This is a small project to get you started with the electric imp and a Thermistor so you can see how you can get temperature readings updating live on a web site. This instructable will address both the hardware and the web site along with all the parts in between. I’ve tried to keep it
Simple wireless temperature sensor updating Read More »
Graphene can increase the sensitivity of micro-electro-mechanical system (MEMS) Sensors by up to 100 times, according to researchers at the Swedish KTH (Kungliga Tekniska Högskolan) Royal Institute of Technology in Stockholm. “The advantage of using graphene membranes for piezoresistve Sensors is their extreme thinness,” Frank Niklaus, a professor at KTH, told EE Times. “The
Graphene MEMS Outperforms Silicon Read More »
Description The MAX31850/MAX31851 cold-junction compensated, 1-Wire® thermocouple-to-digital converters perform cold-junction compensation and digitize the signal from a K-, J-, N-, T-, S-, R-, or E-type thermocouple. The converters resolve temperatures to 0.25°C, allow readings as high as +1768°C and as low as -270°C, and exhibit thermocouple accuracy of 8 LSBs (2°C) for temperatures ranging from
Digital Converters Simplify Multisensor Designs Read More »
This article looks at the latest touchscreen sensor technologies and the wide range of interfaces that the different technologies use. It also evaluates the different approaches for interfacing such sensors for human interfaces from three, four and five wire to USB, covering sensors and interfaces from Atmel, 3M, IR Touch Systems, and NKK Switches. Resistive
Evaluating Different Approaches for Interfacing Touchscreens Read More »
A light meter is a device that measures the intensity of light. It finds applications in schools, hospitals, production areas, passageways and more to measure and maintain proper lighting levels. It is often used by photographers to determine the proper exposure for a photograph. Today we are going to build a simple light meter using
Building a simple digital light meter using Arduino and BH1750FVI sensor Read More »
