Let's Make Robots!

Most Collected: Tip/walkthrough

Tips on EEPROMS, i2c, scratchpad and variables
The picaxe 28X1 has some very cool memory features that can be used to free up program space or to give your robot a more convenient user interface. This post … Read more
Free program for drawing complex flow charts
It’s always good practice to draw a flow chart before start coding. That will save you lot of debugging problems and the structure and flow of your program will … Read more
Plays Music using a DC brushed motor for a speaker
Almost all small robots have a couple of DC motors to drive the wheels. This tutorial explains how to use those motors as speakers. Theory Basically a speaker … Read more
Use an LED + digital input as light detector
This walkthrough describes how to use an LED connected directly to a digital input as a light sensor instead of using an analog input and an amplifying … Read more
Uses the servos potentiometer to detect resitance on a gripper.
Using a
I soldered a wire to the middle pin of the potentiometer inside the servo that operates my gripper. Using an analog pin, I can tell when the Servo isn't moving. I … Read more
Gives a robot bluetooth capability
Some time ago I ordered a cheap bluetooth module on ebay for my Arduino. I went for a no-name module, when I say cheap I mean it. (well after all it were only a … Read more
A comparison between Kalman and Complementary filter
Using a
The use of accelerometer and gyroscope to build little robots, such as the self-balancing, requires a math filter in order to merge the signals returned by the … Read more
lets you transmit IR at a range of up to 200m
It is actually very simple you know...it' all based on two primary things: - LED won't be on at all times, so maybe we can get a little over that max current … Read more
If you are running out of input/output pins of your Picaxe here's something that might help you: Picaxe's configurable input/output pins can be used in three … Read more
(Yes it's an old picture, but) as you see, we have our tools ready to work on robots.   This is just a miscellany of sensors your robot can use from time to … Read more
There are various different chips which are commonly used with the Picaxe chip. Here I attempt to explain what each one does, where it goes and why you might care. … Read more
Uses current generated on coils in stepper to act as an encoder
Pretty simple circuit I found, you may have to play with the resistor values to get the output to logic level depending on your steppper.It uses two voltage … Read more
Gives text output from your project
** walk through in progress ** IntroductionThese monochrome serial LCD text displays are apparently very popular and easy to use. But the official manual (pdf) … Read more
Reveals yet another cheap method of making PCB's at home.
Hi all, Yes you read the title right, I'm going to describe here the method I used to create the above PCB using an INKJET printer. Prerequisites: 1. Inkjet printer … Read more
Creates many kinds of applications
Probably you have seen some interesting projects around here which use applications created on processing, such as: Read more