Let's Make Robots!

Radio control

Atmel RF ATmegas


Has anyone attempted using these? I was wondering how hard it would be to use them with the arduino bootloader for my as-yet-not-started RC system project (I will get round to it soon, hopefully). The Zigduino seems to use them, and they've supplied a library to operate the in-built radio. I'm just wondering whether I'd have to be careful with PCB layout etc. to avoid interference.

RasPi and RC


This is a bit of a repetition of a question I added to this post, but I tought I'd repost as I don't think anyone will see the other.

I've managed to get my hands on a raspberry pi, and I was wondering; Is it worth using for a transmitter, or would I be better off using a standard microcontroller? Could it handle working in real-time? Is it possible to output PPM on one of the GPIO pins, or would I be better off using a secondary microcontroller?

Unnable to controll wild thumper with radio

Hi Everyone!


Im absolutely new too this, so sorry if my question seems dumb. Im using a wild thumper board, wildt thumper 6wd platform and Lipo 2200 mah battery. 6 channel radio with reciever

Problem 1: Im not able too run the platform using the default setup. It will not respond. The radio and reciever works, i have connected a servo that responds, but the thumper will not.


I have a lot of cheap Radio Control Toys such as UFO, Mimi Cars, Tanks... Most of them are controlled by transmitters running in 27Mhz. I wonder the functions of … Read more
When my brother's R/C toy car's electronic was broken, he wanted to buy a more professional one to be able to control the speed and steering continuously. I checked … Read more

r/c with arduino uno?

hello everyone i am new to this website and i was wondering if anybody knew how to make a r/c robot with an arduino uno really i only need a parts i dont know what to buy also if i add a ping sensor is there a there a way that i can switch between r/c and autonomous? thanks a bunch

BomBot Nomadio GC205 R/C package

Our EOD technicians have received 6 BomBots from the Air Force. These units were designed to remotely detonate roadside bombs, (EOD). Four are new and 2 are used, but none have the transmitter, only the receiver. The transmitter is a bi-directional 5-channel, spread spectrum 2.4Ghz unit made by Nomadio, model GC205. I found the 15-page owner's manual for the R/C but it is woefully lacking in technical information.

RC receiver question

Hey LMR!

I need your help on this one: Above is the RC setup I'm planning to use in my next project. I extracted it from a wrecked RC plane I got my hands on. As you can see it's quite basic: a 4-channel receiver, speed controller + motor and servos. I know that each controller function corresponds to one of the four designated outputs on my receiver. You'll notice there's also another output port, labelled 6/B:

Balances on 2 wheels, r/c controlled
Using a
      Well I am not sure I understand the phrase 'time to build' but that would be the time it took me to cut the parts and mount the motors, getting it to … Read more
Hi guys, this is my next robot. He is very easy. I control him with "radio control". He receives two servos modiefied for continuos rotation and one jockey … Read more
run fast
My unsuccessful Mr. basic competitor. I was very unlucky with the Dagu kit I got and still haven't managed to get the chassis running normal. With the normal amount … Read more

Tiny adventures in motor control

Since my last blog entry about using timers and interrupts on the Atmel Tiny 26P, I have put together a driving lego monster with homemade dual h-brigdes that in principle should be able to eat something like 25A or so - of course the wires used are not able to carry that much current but hey I only had those IRF540 and IRF9540 hexfets lying around :-).The controller is still the Tiny26P and my goal is to make this my I2C enabled motor driver for later use with other stuff.

DIY wireless, possible or not?

Hi guys!

Sometime ago i had an idea in my mind about a DIY wireless link between, say, two MCUs. But the point is that i never tested it. I just wanted to know what you thought about it and if you think it could work (you are the electronic gurus after all :) )

It should work like this.

-Receiver has the antenna attached to the base of a darlington, and the signal received goes to the MCU (if not enough maybe i could make a bigger darlington, maybe three NPNs)

wrt54g as robot brain

Andrey Mikhalchuk demonstrates how to hack a popular wifi router to have an rs232 interface (or two). The openwrt project allows us to actually use that powerful hack. Andrey did what few people did before: he added a micro servo controller and TING robot's done!

needing help on a crane/boom to r/c

hello  everybody im new to this forum

 i build custom radio controll semis for a living .all one of a kind.73 build to date.

my new build is a crawler recovery truck .im at the point where i need to start thinking and building the boom,i want to make a working crane/cherry picker/boom/controll arm what ever you want to call it.

 the arm it self had to extend i say about 24 inch and has to pick up about 4 pounds

im running a 7.2v main battery and a 4.8v receiver battry.i would like to operate the boom from my radio.

Walk around and push a shopping cart
A study in automating less glamorous aspects of society. Read more
Shows how far you can get with very few and cheap materials
Using a
If the Google video is not working, please see the video here I proudly present part II of the "Little 8"-project!All I did was actually to cut the bumper's wire, … Read more
You buy a little thing, give it a wire with a serial string. And somewhere else you have a similar setup. And there you go; What you write to one, comes out of the … Read more
ER900TRS: An extremely smart little module. You just give it some volts, and a serial string, and it transmits it over air to another ER900TRS. This one can be … Read more