Help keep your IoT pet alive via the Internet! Story If you had an IoT pet, what would it eat? WiFi SSIDs, of course! The Nerd is a wireless electronic pet that survives by collecting WiFi SSIDs along with some rest and sunlight. In order for it to thrive, you must balance offline and online […]
Homebrew SWR and power meter To begin with, this SWR meter featured in this article is not completely homemade, as I used the circuit design from the schematic in the highly regarded book Arduino Projects of Amateur Radio. Despite purchasing the book and honoring the authors’ copyright, I will still provide my own diagram here.
Please vote for this Instructable if you think it deserves it! Thanks! The Ultimate Altimeter is a super-compact, Arduino controlled altimeter capable of measuring the altitude with an accuracy of 0.3 meters, and saving the highest and lowest values it has measured. It is powered by a 40 mAh Lithium Polymer battery, uses a tiny
The Ultimate Altimeter – A compact, Arduino altimeter Continue Reading
Researchers from Columbia University and the Georgia Institute of Technology are laying claim to having observed piezoelectricity in an atomically thin material for the first time. The effect was demonstrated in the world’s thinnest electric generator made from a two-dimensional molybdenum disulfide (MoS2) material, which had previously been predicted to exhibit such properties. Co-leader of
Features Silent Switcher® Architecture Ultralow EMI/EMC Emissions Spread Spectrum Frequency Modulation High Efficiency at High Frequency Up to 96% Efficiency at 1MHz Up to 95% Efficiency at 2MHz Wide Input Voltage Range: 3.4V to 42V 5A Maximum Continuous Output, 7A Peak Transient Output Ultralow Quiescent Current Burst Mode® Operation 2.5μA IQ Regulating 12VIN to 3.3VOUT Output
Step-down switching regulator minimizes EMI/EMC Continue Reading
In this blog post, I am providing you step by step instructions to build a very simple temperature and relative humidity meter for indoor use. All you need to build this project are an Arduino Uno or compatible board, a DHT11 sensor, and a MAX7219 based 8-digit serial 7-segment LED display. The temperature is displayed
Step-by-step guide for making a very simple temperature and humidity meter Continue Reading
If you’re like me, after I got my Arduino and performed a final programming on my first chip, I wanted to pull it off my Arduino Duemilanove and put it on my own circuit. This would also free up my Arduino for future projects. The problem was that I’m such an electronics newbie that I didn’t know
Standalone Arduino / ATMega chip on breadboard Continue Reading
In the previous blog post, you learned how to send big files (html pages, images…) with your ENC28J60 shield. Today I’m going to show you a complete webserver!3 Description The user’s browser sends a request, through the network, to the ENC28J60 module. The request is analyzed by the sketch that is running on the Arduino, which also prepares the
In the previous blog post, you learned how to send big files (html pages, images…) with your ENC28J60 shield. Today I’m going to show you a complete webserver! Description The user’s browser sends a request, through the network, to the ENC28J60 module. The request is analyzed by the sketch that is running on the Arduino, which also prepares the
There’s nothing fun about a Sisyphean task unless you’re watching one being carried out by someone or something else. In that case, it can be mesmerizing like this Arduino-driven kinetic sand table. Like many of these builds, it all started with an ordinary coffee table from the hacker’s favorite furnitüre store. [NewsonsElectronics] opened it up and
REMOTE-CONTROL KINETIC SAND TABLE USES A SINGLE ARDUINO Continue Reading
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