Air Quality Sensor: Concept to Production

This is the full documentation of the Autodesk University Air Quality Sensor project. Attendees at several events have participated in assembling their own air quality sensor over the past several months. The Concept to Production page will give you more information on how you can use Fusion 360 and EAGLE to create your own products with ease and efficiency, just like we did with this one! Step 1: ...

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Crocodile Solar Pool Sensor

This instructable shows how to build a rather special pool sensor measuring the pool temperature and transmitting it via WiFi to Blynk App and to a MQTT broker. I call it the "Crocodile Solar Pool Sensor".It uses the Arduino programming environment and an ESP8266 board (Wemos D1 mini pro). What's so special about this project? The look is just greatFully independent from power sources (solar panel feed ...

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BCD TO I2C: TURNING A NIXIE COUNTER INTO WHATEVER YOU WANT IT TO BE

Whenever a project calls for displaying numbers, a 7-segment display is the classic and straightforward choice. However, if you’re more into a rustic, retro, almost mystical, and steampunky look and feel, it’s hard to beat the warm, orange glow of a Nixie tube. Once doomed as obsolete technology of yesteryear, they have since reclaimed their significance in the hobbyist space, and have become such a frequen ...

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ANOTHER PC POWER SUPPLY PROJECT

Economy of scale is a wonderful thing, take the switch-mode power supply as an example. Before the rise of the PC, a decent multi-voltage, high current power supply would be pretty expensive. But PCs have meant cheap supplies and sometimes even free as you gut old PCs found in the dumpster. [OneMarcFifty] decided to make a pretty setup for a PC supply that includes a very nice color display with bargraphs a ...

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Color Detector Using TCS230 Color sensor and Arduino

Hi guys, welcome to today’s tutorial. In this tutorial we will look at how to use the TCS230 color sensor with Arduino. To demonstrate the ability of the color sensor, we will build a color detector system capable of detecting the color in front of the sensor and displaying that color on a TFT Display.  For this project, we will use the TCS230 color sensor and the color will be displayed on the ST7735 ...

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Arduino Precision 9 Degree of Freedom (9-DoF) sensor

Adafruit has announced the availability of its new Precision 9 Degree of Freedom (9-DoF) sensor, making it available to purchase for $14.95. The small sensor has been designed to provide high quality motion direction and orientation sensing and is the perfect addition to your next Arduino project. The small breakout board contains two chips that sit side-by-side to provide 9 degrees of full-motion data, Ada ...

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THIS BAROMETER LOOKS MIGHTY FINE, RAIN OR SHINE

Mythological legend has it that Tempestas, the Roman goddess of storms and sudden weather, saved the consul Scipio when his fleet of ships got caught in a storm off of Corsica. In return, she demanded that a temple be dedicated to her. [SephenDeVos]’ beautiful barometer, dubbed Tempestas II,  demands nothing of the viewer, but will likely command attention anyway because it looks so cool. If the weather is ...

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Octavo Systems Releases OSD3358-SM-RED Beaglebone Black Compatible Board

Octavo Systems back in 2017 released their OSD335x-SM System-In-Package device, a powerful ARM Cortex®-A8 SIP-based package. The OSD335x-SM was a device of its class, measured at just 21mm x 21mm, and the OSD335x-SM is the smallest AM335x processor-based module on the market today that still allows complete access to all the AM335x device I/Os including PRUs. The OSD335x-SM helps in removing the need for DD ...

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Inverted Pendulum: Control Theory and Dynamics

https://youtu.be/xwXPipYmJ9A The inverted pendulum is a classic problem in dynamics and control theory that is generally elaborated in high-school and undergraduate physics or math courses. Being a math and science enthusiast myself, I decided to try and implement the concepts that I learned during my classes to build an inverted pendulum. Applying such concepts in real life not only helps strengt ...

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RS485 – ARDUINO AND INDUSTRIAL DISTANCE SENSOR

I have in my hand a distance laser sensor with high precision and speed. It is used in industrial environments for object positioning or detection applications. According to technical documents, I found it can communicate with other devices via RS485. I spent the weekend to learn it and find ways to communicate with cheap CPU - Arduino. And finally, I succeeded in reading data from it and displaying the dis ...

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Broadcom AFBR-S50 ToF laser light sensor measures up to 10 meters

The AFBR – S50 is a multipixel distance and motion measurement sensor. It has an integrated 850nm vertical cavity surface emitting laser (VCSEL) which uses a single voltage supply of 5V. It’s measurement rates are quick and as fast as 3 kHz, which is a distinguishing feature. However, this is not the reason why the AFBR – S50 stands out. It is different because unlike other Time of Flight (ToF) ranging sens ...

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ROBOT FIGHTS FIRE WITH IR

Fighting fire with robots may take jobs away from humans, but it can also save lives. [Mell Bell Electronics] has built a (supervised) kid-friendly version of a firefighting robot that extinguishes flames by chasing them down and blowing them out. This hyper-vigilant robot is always on the lookout for fire, and doesn’t waste movement on anything else. As soon as it detects the presence of a flame, it center ...

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