Robot army follows your every move. Arduino based. Kinect motion tracking. More photos below the fold.
Author Archives: DP
Bay Area Maker Faire 2014: Cool stuff
Macetech rocking the latest revision of the led glasses at Maker Faire. More photos below the fold.
Getting around at Bay Area Maker Faire 2014
Exterminate! Exterminate! More photos below the fold.
Bay Area Maker Faire 2014: Booths and Exhibits
Maker Faire as busy as ever! More pictures below the fold.
Open source PCB ruler v1.0
An open source PCB ruler by Hemal Chevli, that is available at Github: PCB ruler with different foot prints ,SMD proto-typing area, tables, various AWG size holes and inches and cm scale.
Multicode transmitter teardown
Jaanus Kalde did a teardown of a Multicode transmitter: I got my hands on a broken Satel OY multicode transmitter. It is an transmitter used to get information from remote sites – alarm codes, telemetry or sensor values. You can attache it to your pump or ground station and it sends a message up to 30 km […]
Macgyver SMD soldering iron adaptor
Rupert Hirst of RunAwayBrainz writes: Surface mount component removal can often be tricky. With a little thought, and a piece of copper wire, small components can now be safely and cleanly removed, without damage to either the component or PCB tracks. In the following video I show you how to make an quick and simple […]
32 channel mains lamp controller
Jaanus Kalde made this 32 channel light dimmer project, that is available at Github: I needed a computer controllable 32 channel light dimmer for an art installation. After looking around a bit I found out that there isn’t even a Arduino shield for the work. So I made a quick 4 channel stackable board to control lights. The […]
Black and Decker Gyro screwdriver teardown
Alan Parekh of Hacked Gadgets writes: Thanks to Black and Decker for sending in this Gyro Screwdriver for review, you can see the review here. In this article we are going to tear into it and see what we have on the inside. Opening the unit was very simple since there are just 5 phillips […]
A pickup winding machine built on an ATmega8
A DIY guitar pickup winding machine built on ATmega8 by Davide Gironi: A pickup winding machine it is used to wind a guitar pickup. The core of this project is an ATmega8. It features: wind counter slow startup automatic stop configurable motor speed configurable winds 2 directions This winder has an LCD display that will […]
Workshop Organizer – inventory controller for home-workshops
Dilshan Jayakody writes: Workshop Organizer is light-weight, cross platform inventory controller for home-workshops. This application is specifically design to manage electronic/electrical components at home-workshops, but it can use to manage other areas of workshop including tools, machinery and mechanical components, etc. To store data, this application use SQLite database system and all the necessary runtime […]
#FreePCB via Twitter to 2 random RTs
Every Tuesday we give away two coupons for the free PCB drawer via Twitter. This post was announced on Twitter, and in 24 hours we’ll send coupon codes to two random retweeters. Don’t forget there’s free PCBs three times a every week: Hate Twitter and Facebook? Free PCB Sunday is the classic PCB giveaway. Catch […]
Simple soldering iron driver (SSID) with Arduino PID control
Carlazar posted pictures of his simple soldering iron driver (SSID) with Arduino PID control in the project log forum: Main features are: – Any thermocouple type irons. – Additional control mode: On-Off controller (besides PID PWM). – External power supply: Some standard Notebook power supply DC 19V, 4.74A. – Small dimensions: It fits into 90mm […]
OTTO – The hackable GIF camera
Gustavo Huber and his friends announced that OTTO – the hackable GIF camera is now being offered on Kickstarter! OTTO lets YOU decide how it takes pictures. Besides being the only camera that makes animated GIFs, OTTO’s an image making machine that can transform into hundreds of different cameras with a quick tap. GIFs, time lapses, impromptu […]
MM74C922N-based encoded matrix keypad
Raj of Embedded Lab has writen an article about his latest project, an encoded 4×4 matrix keypad using MM74C922: In this project, we are building a simplified 16-switch keypad using the MM74C922 encoder chip, which converts a key switch closure to a 4-bit nibble output.
App note: Current sensing high side switch
App note from International Rectifier on their IR331x part which offers a bunch of power protection and control all in one chip. The new IR331x devices designed in P3 technology provide enhanced accuracy for current feedback measurement. Ideal for high-demand applications — including advanced power management systems commonly found in online gaming infrastructures such as […]
App note: Current ratings of power semiconductors and thermal design
Here’s an app note from International Rectifier discussing on semiconductor’s limitations. This application note described the methods commonly used to calculate peak junction temperature in a power circuit. It also explains the assumptions behind the current ratings of power semiconductors.
Free PCB Sunday: Pick your PCB
We go through a lot of prototype PCBs, and end up with lots of extras that we’ll never use. Every Sunday we give away a few PCBs from one of our past or future projects, or a related prototype. Our PCBs are made through Seeed Studio’s Fusion board service. This week two random commenters will […]
Making stuff in Shenzhen – The Grillino
Mastro Gippo writes: I just finished wrapping up an article about a small project I did in Shenzhen during the HackerCamp with Ian. I hope you find it interesting and feature it! :)
Free PCB coupon via Facebook to 2 random commenters
Every Friday we give away some extra PCBs via Facebook. This post was announced on Facebook, and on Monday we’ll send coupon codes to two random commenters. More PCBs via Twitter on Tuesday and the blog every Sunday. Don’t forget there’s free PCBs three times every week: Free PCB Sunday. The classic. Every week, get […]