Let's Make Robots!


Surveillance robot controlled by remote control. autonomous upgrades to follow
What in inspired me to build this machine: I was always fascinated with robots and how they worked. I was further inspired by superdroid robots's wheeled platforms … Read more

Homemade compound eye

The compound eye from DAGU, designed by Oddbot, is cool and cheap. But I needed a round board to imitate the human eye, so I made one by myself. The IR LED's and photo transistors are the same as in the original design. As I had no PN 100 transistor, I used a BD 139 (the 4 IR LED's draw approx. 100 mA @ 5 V).

Front view of the perf board

Dagu Rover 5 motor whistle

I recently bought a Dagu Rover 5 with two motors and encoders (not yet connected).  I'm using a DFRobot Romeo to control it and using the supplied 8-cell battery holder to power it.

Navigates to GPS Points with Object Avoidance
Using a
Autonomous Robot - GPS, Tilt Compass, Arduino Mega, Wild Thumper Motor Controller, Wild Thumper Chassis. What else do you want to know about this robot?   Read more

U7 got fried for some reason :(

I just got my Dagu 4 Channel Motor Controller, already a small part gave some smoke and one motor channel is not working anymore.

All four wheels were turning at the same time before the channel4 got fried.


  VCC to Arduino 5V

4 PWM on the motor controller to 4 PWMs on the Arduino uno.

Dagu Rover 5 & Arduino Uno /Help

Hello everyone.

I'm trying to make a robot for experimentation, something i can use in my studies aswell. I'm studying Electronics & Computer engeneering, first year, and i want a platform that i can improve in the years to come. 

I started playing around with LEDs and an arduino some time ago, this week i bought a Dagu Rover 5 with 4 motors and 4 encoders. The problem is i don't have the 4 channel DC motor controller. 

DAGU Playful Puppy Robot Review



OddBot (Russell) sent me a DAGU Playful Puppy Robot kit to check out. This little guy is really neat.

Dagu 4 channel motor driver fried


I have fried my 4 channel motor driver and don't know how this can happpen. As you can see in the picture the Dual FET IC  U10 for motor 4 is blown away. This happened during a first test of my IOIO-SHR v2 robot. Before connecting the motor driver the program has been tested with an oscilloscope, all Outputs are working as expected. All connections has been double checked. Power supply testet with an voltmeter. Each PWM pin can be controlled from the Android phone with a Slider of my test app. PWM frequency was 1kHz.

So Oddbot. . .

As I sit here with a tricked out Rover 5, a 4channel motor controller and a Mega 2650, it occurs to me just how much I'm asking of a poor little, (well, for an Atmel--Maybe not so little.) microcontroller.

And so I wonder. . .Have you given any thought to a "Spider Due?"

Apologies if I've inadvertantly stumbled into the Dagu vault of secrets.

Question for Rover 5 users about alternate wheel options.

SO, having completed my holiday obligations, it's time for a little present from me TO me.  I've been collecting assorted parts, and experimenting with Arduino code and have decided that pretty much everything I want to do with a robot base can be most efficiently, cost-effectively accomplished with a Rover 5, and it's at the top of my "Been a good boy" list.

The only thing I don't like about it is those rubber treads that seem to keep falling off.  And since it's my intention to get the Rover 5 with 4 motors and encoders, I've decided to go with independent wheels.

different versions of dagu controller behave differently?


I posted this yesterday in someone else's thread and was advised to start a new one.  My message from yesterday:


This is my first post, so forgive me if I break protocol.  I bought a rover 5 and then bought a dagu 4 channel controller from a british outfit (robosavvy) and was able to create my first robot.  Super cool!

This is the first prototype of the Balancing Robot. In this version , I used two sharp sensors to control the motors.this is as first step till the IMU comes from … Read more

Best way to Power an 8 servo - Quadbot

Hi. I want to power a Dagu Qadbot without sources, only batteries, but don't know the best way to Do it. It uses 8 micro servo - 8g, 4~6V, and draw a current that I don't know the specific value as I didn't find a Datasheet.


So, as I'm almost sure that only Arduino will not be able to power the 8 servos, I'm thinking about 2 solutions:


1st - Use 4AA Battery to power - the Arduino i parallel with the servos. This way I'd power the servos directly and just connect the digital pin to the arduino. 

This is modullo, one of my first elaborated robotic platforms. It hasn't got an actual purpose yet, I'm at the stage of adding various sensors and integrating them … Read more

Mapping of Pins on the Dagu Spider Motor Controller

I made a mapping of the Dagu Spider Motor Controller pins. The cells in red are what you see on the board itself. Other info has been placed adjacent to those cells for easy reference of functions, alternate names etc.


Curiously I am wondering if there is actually a typo mistake on the board with one of the pins being labelled as "TXD1/D1" when it should be "TXD0/D1" instead. Is that an error?


Please give feedback on the accuracy of the mapping.


Dagu Rover 5 shedding tracks on turns

Hi guys, Hope this is the right forum. I'm building a robot based on the Dagu Rover 5 chassis and experiencing problems with it shedding it's tracks. The motor angle is about 45 degs. Anybody had any experience with these and stopping the tracks coming off (even on smooth hardwood floor) during a turn? I'm hoping someone has done a modification or something to keep them on, other wise this Robot may be getting itself converted to tires :-( Thanks guys Shane
So with Help From Various people including Oddbot and Chris the Carpenter i have a working Rover 5 Base and i can now control it with my IR Controller. It was a … Read more

Rover 5 - Dagu Spider and 4 Channel Motor Controller

Ok so i recently purchased the Rover 5 Kit from Robotsavvy by Dagu.

With Help from Oddbot i have put wires from the encoder into the Motor Controller (in the right place i think)

But i have no idea which pins go to the arduino and also where on the arduino they go to.


Image of what ive done and the question :


Any help would be appreciated.




Hi, I started with a clone from OddBots Chopsticks spider robot. I have used 8x12Kg servos and 16x6,2Kg Servos from TowerPro Servos I also buyed the spider … Read more

Problems with object tracking using a Dagu compound eye and pan tilt set up.

  Currently I am having problems with object tracking.  My current set up is a Dagu compound eye on a Dagu pan/tilt braket with 2 micro servos in it for turning.  All of that is hooked up to a picaxe 28x1 board correctly, but I run into my problem with my code.  My code kinda worked but was really jerky and will still move when there is nothing there.  Also sometimes it will go like it has a mind of its own.  I thought it was moving when there was nothing there because I made it read the two eyes on opposite sides and jus

Guys this is my(our viz. me and my cousin) second robot based on Oddbot's Quadbot. Must firstly thank DAGU & robotshop.com for providing me all the materials … Read more

Advice on building a pan/tilt robot arm


Hello LMR folks,

I am in need of some advice over a robot project I plan to build. I have a small amount of experience with using an Arduino, soldering and general circuit making, but I've never used motors yet.

What I plan to do is to have a "robot arm" attached to the ceiling with a camera at the end of it. The arm need to be able to rotate the camera around and depending on some conditions tilt it at different angles.

Drives around and participates in a good party!
Using a
Today I am a little slow, but all right. Yesterday I puked and slept all day. Friday I was at a party with some good old friends. 3 birthdays in one. The invitation … Read more

Holder & charger for mobile LiPo batteries (Open letter to Jack / DAGU)

Since I had good luck last time (http://letsmakerobots.com/node/7046) - I will try again.

This time, it is batteries.

As I was just talking with Gareth about, it is a shame that all the used mobile phones get thrown away, with nice LiPo batteries, even chargers.

And you can get really cheap LiPo's if you get some that should be sold as spare batteries to common cel phone types, or outdated models.

What I would like, would be a HOLDER and second a CHARGER. This would open a world for us!