Let's Make Robots!

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wrench_orange.png Your work in progress or a finished robot: Robot project
script_edit.png Write in your own blog: Blog entry
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
link.png Add a news item or cool link: Web link
Update: (this was all done a few months ago) Removed the servo that moved the eyes. Eyes are now fixed. Added an infrared receiver. Still toying with the program, … Read more

My parts

Yes! My parts arrived today and now i got them.

There are over 400 parts in this box (not include picaxe things):

There are ldrs,resistors,electric capacitors,ceramic capasitors,motor driver,08M,transistors,leds,axle,wires and lots of other things what i can use on robots. But still i have to order more parts, motors,breadboard and battery holders.

 

i built this mini bot for morning call.it is a solar powered beep,the tone&frequency was modulation by light. the circuit was designed by … Read more
This was my first robot I ever built. It was CNC cut from an old stop sign by a friend. It was very simple with only a Atmel Mega8, a 293 motorcontroller, and a … Read more
make motorcontrollers/pcb's survive abuse
Did you know you can solder solid core wire on motorcontrollers and pcb's to make them survive abuse in extreme conditions. Think about it, pcb traces are thin and … Read more
 This is easy Beam robot,i use 1381 circuit and i replaced the motor with the buzzer.  COMPONENT: PN3904 transistorPN3906 transistor2,2k resistor1381 trigger0.1uf … Read more

Robot chassis

Hello everyone! Now i finished my robots chassis and i want to show it to you.

First picture is front of it:

And secon is from left side:

And these are wheels i may use on it:

And parts are taped with two-sided tape.

The Celeste is an Unmanned Surface Vessel (USV), the boat is semi autonomous with a control radius of 5 KM (telemetry and video feed). Main computer is powered by … Read more

Servo Controller: A thought experiment

First up, this is at best a work in progress, at worst only ramblings.

I have seen members asking about driving more than a handful of servos and getting the response that they can either use an arduino and its assorted libraries to drive 12+ servos, correction, up to 20 servos or get a dedicated controller board that seems to cost in the area of 50USD. I spent an hour or so knocking up an idea. I want to lay out my thoughts and see where it could or should go.

 

this is my first cnc construction bot. as a team work.the cnc,electronic and software part was done by chenrq.i do the last work. the bot use 9 of towerpro 5010 … Read more
I wanted to build something different and found this stop light kit online. Yeah I know I could have made the same thing easier with an Arduino. But I find it … Read more
can drum and wander around
I have managed to get every thing except the neck motor to play ball. it took a bit of trial and error to find the correct wiring connections as my board layout is … Read more

Sensor seeking.

Let's Make Robots! Hello LMRians! I ordered some parts and i order more in few weeks.

I want to do my own sensor using LDR,IR led and normal leds. And yes, it's going to be something like AmandaLDR but not exactly same.

The sensor is going to my mini sumo, project what i'm working for. It's using Picaxe-08M. What do you think about it?

navigates a maze with feelers that reverses the opposing motor
Hi all Thanks for letting me join your site Here is a bot that I designed for the scouts to build it was designed as a maze runner. This one was built by my … Read more
Another school project. I designed it by myself, and it goes fast on water but it doesn't move on the floor. It uses spinning direction switch,one motor (not … Read more

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Recently collected


Biped Howto: Moving servos

+++ UPDATE (12-march-2014): Rename title as "Biped Howto".

Hi, I will try to explain, in a very simplistic manner, the way in which servo motors can be controlled.

Servo motors are controlled by a PWM signal, in which the active part of the signal (known as duty cycle) define the amount of degrees the servo will rotate.

explore the world via camera, Programmable, Through narrow places easily, battle with other robots
Using a
Since this Project was transferred from the project: Xpider--the smallest smart robot spider (Stop Updating)    I will describe the project infomation simplely. Read more
A winning robot of the Czech round of the RoboRAVE 2016 Junior competition – Ball transport with automatic loading
Using a
Béda 5 is a robot, with which our team HaHaHa Robotics ( Read more
This is my first robot attempt using Arduino uno it is almost finished and I have a code but there might be something wrong with the wiring if anyone has any … Read more
Talking,walking forward &left & right & backward,self navigating,playing,tail shaking, getting angry for caress ,eye acts.
  Firstly ,my special thanks for who chopstick juniours maker lumi and facial led matrix maker dickel. Robot chassis uniformity and cute image of chopsticks cause … Read more
Build an occupancy grid map from sensor data
Using a
Would like to share some details on a 2D Robot mapping software I am currently working on. I have including a video of a robot using a map generated by this … Read more

new cover for arm and new claw

new claw and new cover for 3rd arm

video of it working https://www.youtube.com/watch?v=U7jjW0tXF90

Otto walks, dances, makes sounds and avoids obstacles, is completely open source, Arduino compatible, 3D printable.
Using a
Otto is completely open source, Arduino compatible and 3D printable. Otto was inspired by another LMR robot "BoB the BiPed" and programmed using code from another … Read more