Let's Make Robots!
These brilliant blue LEDS are a great addition to any robotics or electronics project. Read more

Hexapod controlled by arduino+devantechSD21

Hello there,

I am working on a hexapod robot and i am trynig to controll it by using aruino + SD21 servo controller.When i am  test each servo separately ,are acting like i want but when i am connecting all of them its like most servos are not moving at all.

 

This is my code:

#include <Wire.h>

#define ADDRESS 0xC2  

 

int servo1  = 63;

int servo2  = 64;

int servo3  = 65;

int servo4  = 66;

int servo5  = 67;

int servo6  = 68;

int servo7  = 69;

Price: $15.95 USD

 Collected by one member
This gearmotor is a miniature (0.94" x 0.39" x 0.47"), high-power brushed DC motor with 210:1 metal gearbox, similar to Sanyo’s popular … Read more
You asked for it! This cost me all night. Including video editing, voiceovers and retakes! Uploading, deleting and reuploading... No Pulse for all of you this … Read more
James and Ben are two robots that I have made to help teach the students I teach at high school about robotics. James is an obstacle avoider and Ben is a light … Read more

Mind the Raspberry Pi power usage

The RaspberryPi is a powerfull little gadget that can add a lot of good features to your robot. For under $60, including cables, dongle and SD-card, you get a lot of processing power, data storage, wifi and audio. So I ordered a RaspberryPi to be used as the brain for my R2D2 project.

Are we too many in here, should we start limiting acess?

Hi everyone :)

Are we too many in here, should we start limiting acess?

I have had the same thoughts before; at a point I felt like we where so many in here, that it was impossible to follow everything & everyone..

It sure is now.

Last time I did & said nothing, and it turned out to be the right solution; So many cool people dropped in, people I would never have known else. I am thankful I did not limit acess then.

Price: $39.95 USD

 Collected by one member
This set includes a pair of 42×19mm wheels, a pair of extended brackets, and two matching encoders. Just pick a pair of micro metal gearmotors to complete … Read more

Whack a mole

I'm requesting ideas on how to create a moving part.

 

How would I create the same mechanism that the game Whack A Mole would use to RAISE and LOWER the moles.

 

Any suggestions would be greatly appreciated.

 

Also, if you know a great website for moving parts in general it would be helpful.

 

Thank in advanced!

 

IR module circuit

Howdy all.

Has anybody connected their picaxe to a RadioShack 276-640? Its the IR reciever module you can pick up at any store ... and the only one I have access to.

I set it up with the same circuit shown in JKlug's walkthrough, but no lcuk

Work in progress; just arrived from Shanghai, China is a set of automotive ultrasonic parking sensor system to be soon hacked and placed on the robot for obstacle … Read more
plays music from phone to k7(tape) reader via jack
  it plays music from a phone or mp(3 4 5) to a K7(tape) reader via jack for a party for example in a low cost so it is like a jukebox you choose the song via … Read more

Optimized voltage divider for low power application?

Well, I'm (trying) to build a low power node which is powered by a tiny 80mAh NiMH battery pack which in turn is recharged (kept charged) by a small photovoltaic panel.

I want to measure the voltages at both panel and battery, so I'm thinking of using a couple of voltage dividers. Usually I wouldn't think too much on it and would just use a couple of resistors, that would divide the max Vin to the voltage at which my chip would be running. 

In this case I intend to run an Atmega8 (if everything fits -- else atmega328p) at 3.3V...

Navigate around via ultrasound
Using a
This is my very first Robot. I was inspired (more than inspired) by the "Frankenbob" which I found first on Youtube. Actually I build this robot together with my … Read more
A project board for the PICAXE-08 microcontroller. Provides 4 digital on/off or 2 reversible power outputs- with a single input. Includes PICAXE-08 and L293D ICs. Read more