Let's Make Robots!
I love the Arduino and the flexibility this little ATMEGA328 microcontroller can offer. It is easy to implement in new design and to solder. I also have done some … Read more



Roaming arond making grumpy sounds
Using a
Finally RAT is finished. A rainy summer day the last of the programming was completed. The chassis is a piece of sewage pipe (previously unused), the weels are the … Read more

Pulse oximeter Mk II

I just started to build a second version of a pulse oximeter. If you don't know what a pulse oximeter is, here is a simple but detailed description what a pulse oximeter is and how it works.

Making a PING sensor control a DC motor

Hi, guys. I'm kinda new to this robot-scene. I've been doing it for about 3 days i bought a arduino uno r3 and a few other odds and ends to make a simple robot. ive got 2 DC motors(3v), A PING sensor, and everything else to make a robot(don't feel like going into detail lol). I know how to run the motor and the sensor by themselves but i need some help making the sensor and the motor cooperate. Any ideas


P.S. i have programming knowledge so i dont need it (dumbed) down lol

Cannibalizing a broken printer/scanner. Suggestions?!

My boss asked if i wanted a partially working printer scanner combo jobby today. Dont think he was expecting me to rip it apart for parts.

Ive only got SO far into pulling it to pieces, i will have to go and get a complete Torx driver set tommorow, ive gone as far as i can with >T15.

Anyone got any suggestions as to what i should do with this thing?!

XMOS Challenge : ONR robot beginnings

Description of the ONR (maybe a real name TBA)

This robot is to navigate outdoors from point to point, possibly going through a series of predetermined points. Point location can be marked by traffic cones, GPS coordinates, or other orienteering markers as detailed in various contests like Robomagellan or the DPRG outdoor contests.  Requirements include finding and recognizing the point, as well as negotiating any obstacles between points, and maintaining a remote stop.

Hacked tyco rebound rc car, now I need ideas on what to do with it

Today I dug out one of my old childhood favorites, the tyco rebound. In case you've never seen one, the rebound has 4 wheels large enough so the car can flip itself over. Steering is done like a tank with no treads, each side going forward or backward. It's also FAST. I tore it open and it's built perfectly for modding. There are 6 wires attached to a circuit board. 2 for each motor and two coming from a 6 volt battery pack.

Price: $4.49 USD

 Collected by one member
This semiconductor gas sensor detects the presence of alcohol gas at concentrations from 0.04 mg/L to 4 mg/L, a range suitable for making a breathalyser. … Read more

Learning to use WiFly RN-XV module, any advice?

Recently I have started trying to add WiFi to my robots. The WiFly modules seem like a good choice. Reasonably priced and they fit in an XBee socket so that I can easily swap the hardware between Xbee and WiFly. For this reason I added an Xbee / WiFly socket on the ComMotion shield. Unfortunately I know nothing about networking so I have a steep learning curve ahead.

Need help "translating" a C program to work in Arduino

I need an expert in C/C++ programming to help me translate a fairly complex piece of C code into Arduino specific code, perhaps even create a library. The original author of the code can't do it, but we have his permission to do it, as the code is released for hobby use only.

 The code is very interesting for many Arduino based robots, lots of people will benefit if we can make it work.

Please reply here or PM me if you're interested. Thanks.