Let's Make Robots!
LM4755 amp it is a fun project i always like to build audio projects, i repair amplifiers.   chips: power amp chip(LM4755) preamp chip(LM4562) EQ 3 band(LM4562) … Read more
Sits on your desk and looks cool.
I made this a while ago and I thought I might as well post a page for it. I printed this on a Printrbot Simple 2014. V1 printed successfully for me, but I … Read more
Produces a variety of colors from an RGB LED using PWM
A simple RGB LED demonstration. First Part : Various Colors on Display (Mixing of RGB colors to produce other colors using PWM) Second Part : Fading Action using … Read more
Controls a Fan Speed based on room temperature
This is a POC I made for a friend. Looked it up on the net and decided to give it a try. The setup is made of a DS18B20 temp sensor to mesure room temperature and … Read more
As some of you know, my work is more and more related to SMD design. I just love how compact and robust these designs can be. I have no problems soldering the … Read more
It tells you the number of people who entered/left your room based on IR
  I'm using an IR LED an IR sensor and an 8 digits screen to show the number of people. When you go throughlaser the sensor sends a 1 signal to the screen.  this … Read more
Controls robots and other things using 32 bit ARM processor from NXP
I have been using NXP LPC1114 controller chips lately. I used them in the robots I am building with my kids, the Valdez family … Read more
Replace mechanical limit switches on my CNC mill
As some of you are aware, I have a small desktop milling machine (Taig) that I converted for CNC control. And a very useful feature to implement on a CNC machine … Read more
 IR sensor module:  (IR LED, photo diode + little amplification)             Read more
You might remember an earlier post I made with regards to a Robert Murray Smith Indigogo campaign , btw thanks to any of you LMRians for contributing, he exceeded … Read more
Update 6/7/14 Added .brd and .sch files below of version two. This version is slightly smaller and has considerably wider traces for everything that uses … Read more
It is a simply and easily to operate monitoring alarm system about temperature humidity and smoke.
This DIY temperature & humidity & smoke alarm system based on ICStation Mega 2560 compatible with Arduino. Read more
Controls a robot, integrated motor driver
Link to eagle schematic and board layout files   Update 6/7/14 Got the new boards back from OSHPark and assembled one Friday evening. I'm happy to report a … Read more
Just more Hoff goofiness :O I thought it would be cool to repurpose some old vacuum tubes to jazz up a project. The base of the tubes I used are made of plastic … Read more
Just make people looks awesome
The last couple of days all our stuff prepared something for the Maker Faire. One of the gadgets is a pair of steampunk goggles which are designed be our mechanical … Read more
The Garden's Camera based on Raspberry Pi (with motion detection)
Picammory The Garden's Camera based on Raspberry Pi (with motion detection) Introduction This project build a high definition camera from a dummy outdoor … Read more
This is not going to be a build guide. but more off a show 'n tell of the mods I made to the original prusa mendel i2 other members have written some  inspiring … Read more
Gyroscope balances on two chopsticks. Now if it could only walk.
I put my homemade gyroscope on two chopsticks. Balances pretty well but as video shows I needed to apply a little force on one side now and then to stop the gyro … Read more