So for some reason I bought 2 IKEA lamps at a flea market. As IKEA furniture has a long history of being hacker-friendly, I figured they shouldn’t be an exception to the rule. My plan? Fit a few 10W RGB LEDs in there together with an ESP8266 to use the final result as an alarm […]
Update: Looks like somebody had this idea before me and made a product out of it. Just Google Fake TV. In fact, you can also buy a clone of this from AliExpress – again, just search for ‘fake tv’ in AliExpress. The Chinese versions can be had for about $12 in your hand and that
Build A Fake TV Security Light Using Arduino Continue Reading
Sitting for long periods has become more common in today’s jobs causing serious health issues. Unfortunately the plethora of activity trackers fail to address the issue: being rather active while sitting does not provide a good picture of the amount of time spent sitting. Sit. Up is a simple device that attaches to the chair
This Design Idea gives two versions of an indicator light that changes from green to red as a battery discharges. There are many circuits that do this sort of thing, but all the ones I have seen are too complex and costly for my taste. This DI shows a method that uses an absolute minimum
Voltage indicator transitions between colours Continue Reading
Features 680nA Input Quiescent Current (Output in Regulation at No Load) 1.8V to 5.5V Input Operating Range Selectable Output Voltages of 1.8V, 2.5V, 2.8V, 3V, 3.3V, 3.6V, 4.5V, 5V Integrated Coulomb Counter Measures Accumulated Battery Discharge ±5% Battery Discharge Measurement Accuracy Programmable Peak Input Current of 5mA, 10mA, 15mA, 25mA, 50mA, 100mA, 150mA, 250mA Up to 50mA of Output
LTC3335 – Nanopower Buck-Boost DC/DC with Integrated Coulomb Counter Continue Reading
USB Power supply Active Load Tester or short PAL Tester is unit designed for testing the quality of the power supplies. Idea was to create low-cost, precise device for simultaneous measurement of Voltage and Current drawn from the device under test. This is one of my weekend projects that I have decided to release to
Searching for a compromise between the quality (materials, design,…) and production costs is a theme at development of every device and naturally – also at development of components. Also from this reason on the market can be found enclosures with a various wall thickness, with various temperature resistance, etc. and so everyone can choose according
Phoenix EH basic is more than just a „basic“ enclosure Continue Reading
Hey Everyone, Today I hope to teach you all about ultrasonic sensors and hopefully by the end you’ll have a nice little digital tape measure of your own to use as you please. Enjoy Step 1: Parts List This is my second version of this project so if you can get it as small or
Build A DIY Digital Tape Measure Using Arduino Continue Reading
Oscilloscopes and Signal Generators are two essential electronics devices to create and test electronic circuits. Unfortunately, these devices are very expensives for students starting electronics, or makers who want use electronic circuits in their creations just once… The idea of my project is to rethink your smartphone as a portable, powerful and secured platform, able
OscilloPhone: Use your Smartphone as an Oscilloscope / Signal Generator Continue Reading
In this project you’re going to make two ESP8266 talk with each other. RELATED CONTENT: Like ESP8266? Check out Home Automation Using ESP8266 How it works? You’re going to set one ESP as an Access Point (Server) and another ESP as a Station (Client). Then they’ll establish a wireless communication and the Client sends a message to the
