Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
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comments.png Discussions and questions: Forum topic
brick.png Show what you are making robots of: Component
lightbulb.png Help others with what you have learned: Tip or walk through
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Encodes hex data into UUEncoded data
  I want to take a moment to thank Bdk6.  The man is a walking Stack Overflow, with more patience for stupid.  I doubt I'd understand any of this without his … Read more
Not All Those Who Wander are Lost (but I am) I thought I'd take some time away from coding my LPC1114 Uploader and verbally process a few things I've learned.  As … Read more
It's a useless game based on the Useless Machine/Box
My take on the Useless Machine that turns itself off. Used Arduino Uno, servo, magnet, bicycle Hall Effects switch and a box. Posted a few days ago on … Read more
A common requirement is to add ranging to a Pixy so you can detect an object and determine it's distance. This is a bracket to firmly mount the commonest types of … Read more
roves on the moon
An old video of moon rover I submitted to the Google 30 Million Dollar Lunar Lander competition and never heard back from them. It is somewhat amateurish and … Read more
A rover with 4 directional wheels.
Andromina robot v.1.2 is a 4WD robotic platform with four directional wheels. The four wheels can independently turn. The robot can maneuver multiple ways. The … Read more
I am new to Arduino and robotics and this is my first real attempt to build a robot from scratch. It is Running a Arduino mega 2560 with a DFRobot L298P motor … Read more
UPDATE 3rd of March 2015 Well, it happened. PopPet went onto Kickstarter, it was funded, now it's a product. What a journey! I thought that I better update the … Read more
EyBot v0.1 Buildin parts are: Raspberry Pi, arduino. L298 H-Bridge, mini amplifier for speaker.DC-DC (12V to 5V). at this moment, controlled over WLAN, or over … Read more
I finally finished this OpenCV robo arm. It follows my neon green paper. I use the Romeo All in One microcontroller with the Arduino IDE. This microcontroller … Read more
The new version of my transforming wheel robot is way easier to assemble, and all the files are up on thingiverse so you can build your own.  Read more
Control method: remote CPU: Arduino Mega, Raspberry PI Programming language: Arduino C, C++, Java, Python
After reading about Duanes Rover5, I decided to try to build my own. It is still not finished so I will update this page on a regular base. The following diagram … Read more
Update nr3 (Feb25,2015) video added of one of the first attempts to drive a straight line of 150 cm,, with on-route calibration. Update nr 2 (Feb 24, 2015) Read more
Drives around controlled by a remote.
I have a rover 5 chassis (4 motors, 4 encoders). My goal to use this chasis to create a robot that drives around and is controlled by a remote.  I am new to … Read more

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Recently collected


Drive around and shoot BB's
17.04 - Partial encoder success It's alive!(kind of). The movement in the video is a bit slow and jumpy as I am filming with one hand and using two joysticks with … Read more
Recently, I have received a gift mDrawBot kit from  Makeblock. the mDrawBot kit has already&nbs… Read more
Walks down slopes using gravity, makes his owner smile.
Wobbly is a 3D-printed, gravity-powered, walking automaton. He basically walks down slopes. Read more
There are many ways to build a robot, from scratch a kit, a prebuilt system or combination of any of these methods. The path we will take here will be mostly from a … Read more
Hello all, This is my first robot with programming so I would be glad, if you gave me some tips if you find any issues in the code. My robot is based on an AT-AT … Read more
Made a simple robotic one finger piano plinker using two servos, Arduino Uno, some aluminum flashing and a fishing pole for the sliding rails. You get a gold star … Read more
A study on PWM outputs at Tiva C Series TM4C123G Launchpad Evaluation Kit (EK-TM4C123GXL)
After some months form Read more

Problem with HC-SR04 distance sensors

Hi Everyone,

I have been finding that I get erratic distance measurements on my tests with the HC-SR04 sensors. I put together a circuit with 128x64 OLED SSD1306 I2C display (Really like that module, by the way) connected on a breadboard to Arduino Nano v3.

The idea behind the circuit is:

Use the NewPing library to generate a distance measurement in centimeters.

Print the distance value to the screen, and keep on repeating.

As the sensor is moved around (8V lipo battery connected to Vin and Ground) you can see the distance updated on the tiny screen.