Arduino Analog Thermometer With DS18b20 Module

Introduction Sometimes, it is necessary to add a temperature indicator into your projects. Therefore, in this tutorial you will learn how to hack your analog Voltmeter and convert into an analog Thermometer using Arduino and a DS18B20 temperature sensor. DS18B20 Module In the first place, the Maxim DS18B20 digital thermometer provides 9-bit to 12-bit Celsius temperature measurements and has an alarm functio ...

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IQ Motor Module – An Integrated Motor With A Closed Loop Controller And Position Sensor

The drone industry is booming, and the technology is just… cool, to put it plainly. Flying robots, many of which are completely autonomous delivering our goods and also spying on us. Makers and hobbyist are getting on the bandwagon, making their customized drones with available parts. With the boom of UAV (Unmanned Autonomous Vehicle) and Drone technology also comes the growth of issues. Electric motors are ...

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DIY Internet connected smart humidifier

I worked on creating a Internet connected worked on creating a Internet connected last week using my open source WiFi relay project as platform. We observe quite dry air at our house, I suspect this is due to the fact that we use fan coils for heating/cooling. Humidity levels at home are usually below the 30% mark, which poses a health risk along with uncomfortably dry air. I’ve found these interesting char ...

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PROJECT PERCEIVES PONDERING, PRINTS POETRY

If poetry is your thing, this hack might convince you that your brain is more advanced than the rest of us poor sots. [Roni Brandini] designed a system that prints lines of poetry when you concentrate. The Mind Poetry project uses an EEG headset from Mattel’s Mindflex toy and pipes your brain’s signals to an Arduino Mega 2560. The system then looks for patterns of brain waves that indicate concentration. As ...

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Crabbie Arduino development board hits Kickstarter

The small development team at Bits4Bots have created a new Arduino compatible development board aptly named the Crabbie thanks to its unique crab inspired shape. Watch the demonstration video below to learn more about the hybrid sensor shield specifically created to introduce children into electronics and programming. The board is equipped with 2 x 8 watt speakers, 8 x 3mm leds, ISCP header, JST-1 battery c ...

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Display Arduino analog input using LabVIEW

In my previous article, I have made the Bridge Monitoring System using Wireless Sensor Network project, which allows me to display all the related measurements from Arduino on my PC. Therefore, in this article, I am going to explain in details on how to display the Arduino measurements using Laboratory Virtual Instrument Engineering Workbench (LabVIEW). Two analog inputs of Arduino will be measured and disp ...

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THE OCTOPUS IS A 5K FULL FRAME OPEN SOURCE CAMERA THAT LETS YOU SWAP OUT SENSORS

Now that digital imaging sensors are starting to become more freely available to the masses, all kinds of open source projects have been popping up that use them. Most of them are typically fairly limited to things like the Raspberry Pi or development boards like the Arduino and ESP32. But now, there is a new and pretty serious looking open source camera out there. It’s called the Octopus, it has interchang ...

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MAKING A DIGITAL CLOCK A LITTLE MORE INTUITIVE

Digital clocks are extremely useful and generally considered pretty easy to read. However, they can sometimes have rather arcane interfaces for setting the time and alarms. For [Michael Wessel], he noted that in the 1980s he had to routinely help his grandparents set their clocks for this very reason. That inspired his most recent project – a digital clock that’s intuitive to use. Many digital clocks work i ...

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AUGMENTED ARTHROPOD GETS A SELF-BALANCING RIDE

There are many people who find being around insects uncomfortable. This is understandable, and only likely to get worse as technology gives these multi-legged critters augmented bodies to roam around with. [tech_support], for one, welcomes our new arthropod overlords, and has even built them a sweet new ride to get around in. The build follows the usual hallmarks of a self-balancing bot, with a couple of in ...

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Soil sensor mini kit shows if plant needs watering

Adafruit Circuit Playground Express Soil Sensor Mini Kit is designed to measure the soil moisture content. This kit, available now from Mouser, is based on the Circuit Playground Express platform and delivers the measurement utilising a nail and alligator clip. As the moisture encompassing a nail in the plant pot rises, the board detects the change and outputs the result as through the design. The platform ...

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FPV drone teardown

My lower-midrange Hubsan X4+ FPV drone got stuck in a tree in the middle of winter. We managed to knock it down a couple of months ago (the drone, not the tree), while there was still lots of snow to cushion the fall. After weathering the elements for over a month, it appeared to be mostly fine, except…one motor was seized. On the plus side – teardown excuse. I confess this isn’t a full teardown. The 720p c ...

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Current Sensor Amplifier & Over Current Switch

Current sensor amplifier and over current switch project is based on ACS714-30A current sensor and LM358 Op-amp, ½ of  LM358 op-amp used as an amplifier for low voltage  and 2nd 1/2 LM358 op-amp used as comparator which provides over current TTL output, trimmer potentiometer provided to set the over current limit.  ACS714 sensor measures the current up to +/-30Amps, final output of the amplifier is 235mV/1A ...

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