Here is the very nice tool kit supplied to finishers in the Experimenting With Thermistors . It comes in a clever fold-up tool case that has a snap-in location for each tool. The tool assortment is well chosen to cover a wide range of usage requ...
I am so thrilled with the prizes that I received!! I didn't realize there was a prize included for the cat (Mr. Meowser) as well!!
Finisher Prize!!
3D Printer
IRobot Mop
Mr. Meowser approves of the prizes
Mr. Meowser enjoying his p...
Let's meet the arm (or rather arm joint) of the robot that doesn't exist as of yet!
Mechanical assembly of robot arm
I had some printer parts (motors, gears, sheet metal parts) that I wanted to use to create this robot. Also, I had thought of using t...
First off - I have a confession to make that I had some time adversities due to illnesses in my house so I'm quite late in writing up the blogs and completing the challenge. However, I would say that I am only completing the blogs and as far as the c...
Intro
Sammy Semaphore is finally fully functional, complete with remote Bluetooth control. He turned out very well, although not without having to work through adversity. The biggest issues were supply chain and the fact that I got very sick.
Sammy S...
Intro
There is only one day left before the deadline for this contest, so I need to publish where I am at. The Connector Tester part of this project involved designing a couple of PCBs to allow TE Connectivity connectors to be tested. Unfortunately n...
Unlimited CNC Robot Blog 7 (Final Blog)
My final video of the working project:
community.element14.com/.../CNC-Final.mp4
I want to thank our sponsor TE Connectivity for making this challenge possible. Thank you to Element14 and the community for h...
With the deadline here, I am presenting the current state of The Robocat. We have achieved nearly all of our goals by creating a wheeled robot with a super cute cat body. The Robocat can follow pre-programmed paths, identify a laser pointer dot...
And now, the results. A long time passed since the challenge started. Difficulties have passed and now it is time to get into presenting to the community results.
First, let me show you some pictures, and then I am attaching a video so you can...
1. The Main Robot Body
I am using a Steel chassis with 4 x 100 RPM - 12V Centre Shaft DC Geared Motors and 4 x 7cm Diameter wheels.
2. Creating the Firebase Realtime Database Project
2.1 Creating a Firebase Proj...
This is the last post of this challenge. I am going to provide a list of the materials required to build Rullit and I am going to publish a final (partial) demo of Rullit at work
Bill of materials
Qty
Description
Notes
Link
1
TE Robotic...
Unlimited CNC Robot Blog #6
I wanted to post this blog before I post my final blog tonight. I found a big error in my code and wanted to update it now.
The error I made was I had my line sensors reversed to what they needed to be for the right readi...
Connectors
Going back to the block diagram, I will add a few comments here.
As a general principle, I would like to be able to disconnect the two engines, two sensors and two power supplies (not pictured in the diagram: 5V power bank and 6V engine p...
It has been a long journey, filled with knowledge. At this point, my RARM is almost done.
I would like to tell you a little bit of what was my path to building the robot.
Let's get started
In the beginning, when I started blogging I used ...
The most important (and fun) part of The Robocat is the cat. We chose paper mache to make the body. This blog post is just about how we made the paper mache cat and attached it to the robot chassis.
We used a paper mache process that is ...
This blog post is all about putting the functional components of The Robocat together. I made use of TE Connectivity connector products to make The Robocat a reality.
I used the M3373 SL005 multipair cable for all board to board con...
Autonomous navigation
The navigation software is implemented as a Finite State Machine (please refer to the next figure).
The FSM has four states:
START - initial state
FREE_NAVIGATION - no obstacle or obstacle is far away
AVOID_O...
In this post, I will write about the user interface and remote control application developed as part of this challenge
Local display
Rullit has a local OLED display with a resolution of 128x32 pixels. The display shows the information shown in...
The Robotcat has a machine vision component, which hopefully allows it to “chase” a laser pointer. Machine vision requires considerably more compute power than the Arduino Uno can deliver. To supplement the Arduino Uno, I dec...
Its been a really fun, sometimes frustrating, sometimes challenging, Twist Turn & Move Challenge.
Thank you to the readers who have provided encouragement, suggestions, conversations, and likes.
The contents of this Season Finale blog will ...
Testing Ardumobo
In order to test Ardumobo, I wrote a small Arduino sketch that changes the direction of the robot when the distance to the obstacle is less than 10cm. Here is the code:
#include "HCSR04.h"
#include "DRI0017.h"
...
Unlimited CNC Robot Blog #5 - Sponsored by TE robotics
This update is the code I wrote for the CNC Robot. The code includes all my recent updates, like IR Remote start and emergency stop. The programming of the IR Remote was new to me and was a bit ...
Unfortunately during the test the DFRobot DRI0017 failed, probably because, when I connected the battery (so without any over-current protection), the peak current exceeded the maximum current the L298 was rated for.
Ordering a new part will tak...
After some preliminary tests, I realized the approach I followed was not to best one, so I made some correction to the Rullit’s control software
Problem
There is basically one major problem in the implementation I talked about in m...
