Here’s a how-to on making a magnetic magic wand toy by DIYHacksAndHowTos: This Magic Wand project can be used to get someone young interested in electronics since instead of simply doing something practical this project appears to be magic. The … Read more
Ricardo Trombetta shared a tutorial on how to plate the holes using copper hypophosphite pyrolysis to activate the holes: This video shows how to activate a PCB holes surfaces before electroplating. The holes are activated using a low cost copper … Read more
We are off to the Bay Area Maker Faire, and we’d like to share some of the tips we picked up on our previous visit there. Below are our tips for both visitors, and participants. If you are in the … Read more
Ray Wang wrote this post about voltage conversion from 24VAC to 5VDC. Voltage conversion from 24VAC to 5VDC is quite useful, because a lot of home automation devices use 24VAC, including sprinkler solenoids, home surveillance systems etc. Having a conversion … Read more
Here’s an Instructable by ASCAS: Phone macro photography (HQ – using LED lens) You can purchase some macro lenses for your phone camera but with a bit of work and a spare LED lens you can make your own. Only thing … Read more
Want to build a robot arm yourself? This video by Jacobk42 shows you how to easily make a DIY robot arm: Using some assorted pieces of wood, springs, string and some odds and ends will allow you to make a cool looking … Read more
HardwareBreakout shared a tutorial on how to make your own laser cutter for cutting PCB stencils: Are you sick and tired of using a tooth pick to apply solder paste? Are you still using through hole components because you don’t … Read more
Hertaville posted a detailed tutorial on interfacing the MCP23017 to the Raspberry Pi using C++ (SYSFS): In this blog entry I will demonstrate how to successfully interface the MCP23017 general purpose input/output (GPIO) expander from Microchip, to the Raspberry Pi over … Read more
Madox wrote a short tutorial on how to set up a streaming webcam: Connecting a webcam and using the router to stream video around the place should be one of the easiest things to do. A bit too easy in … Read more
Giorgos over at PCBheaven posted this video by Alan Wolke aka W2AEW about the basics of ferrite beads, and their uses for basic filtering applications: Here is an excellent tutorial on how ferrite beads can attenuate high frequency interference into … Read more
Tips & tricks to sort and rework surface mount devices (SMD): I’m a member of the Superstition Amateur Radio Club (SARC) and each month we have a presentation on a ham radio related subject. I volunteered to record and upload … Read more
jwhitley89 tweeted: “And this is how you solder 8 AWG wire with lead free”
When Ivan changed his TV provider they required the use of a SetTopBox(STB) as a receiver. Since it had HDMI output, he decided to use an old Philips 230C1 monitor as a TV screen. The monitor, however, was not controlled … Read more
In this video Debraj demonstrates his 2-wire serial interface for use with a 128×64 graphics LCD. This design reduces the pin requirement from 14 to 2. Check in at hobbydebraj for schematic and source code links. Via the contact form.
Trandi posted a step by step guide of his DIY wireless doorbell build: So this was the perfect pretext for a small electronics project, centred around the idea of a simple voltmeter that would notify us when the voltage goes … Read more
Chris Fenton has spent the last year and a half or so constructing his own 1/10-scale, binary-compatible, cycle-accurate Cray-1. He says this project falls purely into the “because I can!” category.” The actual design was implemented in a Xilinx Spartan-3E … Read more
Kerimil over at Arduino forum posted this simple how to on controlling an Arduino board with an Android mobile device. He describes, “The circuit is just a Bluetooth module, Arduino UNO, LED, resistor and some wires. The LED can be … Read more
Thomas Sarlandie writes, “I have hooked up a high power LED driver that I designed and built a few months ago to a 40W led and to a Raspberry Pi. I had to fight the Pi a little to get … Read more
The Hoz directs our attention to this Lifehacker article explaining how to setup the R-Pi as your own personal VPN. The project hardware requires only standard R-Pi peripherals, including keyboard, mouse, monitor, SD card and Ethernet connection. You’ll also need … Read more
Musti is a fan of the Bus Pirate and writes to share his method for using it to unbrick a TP-Link wireless router. The router had been bricked during a failed firmware upgrade, and Musti was able to desolder the … Read more
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