Let's Make Robots!

propeller

I present a novel locomotion system which comes into its own when there is snow around. I was inspired by a couple of videos of a Fordson tractor & Chevrolet … Read more

IRIS System - update 2

An-Tech's picture

 I've worked on this alot latley. It's an improved version of my text editor. Basically, it was made to test the keyboard input and TV output for the propeller, but ended up being alot more work than it was worth. In the end, I just realized that I only needed to use the ending string (13, 10). Only some minor problems remain: no tv objects will work unless the prop. is plugged into the computer and no spaces show up when using the read method. Here's the code:

IRIS System - update 1

An-Tech's picture

 

Horay! I just got my GG propeller board USB:

 

 And, for the record, I did blink some LED's (video 1). Parts shipment 1 of 2 has also arrived:

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Moves around via commands from PC, Humanoid is animated, it can move its head & arms. Can display messages on its 4 x 20 LCD.
Using a
ZappBot 3 - Tracked Humanoid Torso Robot. The robot is 11" Wide, 12" Deep and 21" Tall. It is controlled by a Propeller Chip P8X32A-D40 and a Digi XBee 1 mW Radio … Read more
Investigates the Festive environment with a Festive Twist
Using a
I present to you "Miranda" , a laser scanning Robotic system using a Wii-Mote Camera and Festive Reflective Xmas Bauble. My previous "Halo" Experiments have been … Read more
 I recently read two great tutorials from gadget gangster on how to write to and read from SD card. Now this is great if you want to write pre-set text. But … Read more
Projects a laser generated "Halo" on the floor .... as an object detect system
Using a
I present "Halo"  ..... my latest Laser Robot It been almost a year now that i have had the idea to cast some form of "Halo" around a robot and detect the … Read more
    I introduce you to the RocketBot Family of Robots. Read more
Analog, Serial, Motor Control, Audio, Video, Xbee, Bluetooth, PWM... Everything!
Chris was nice enough to send me a little project of his called the 444AVXB. Why the weird name? Well, because it does EVERYTHING. 4: amps of motor driver power (2 … Read more

Variables and operators help in Spin

tom_jones's picture

Hi again LMR Im having some problems writing basic obstacle avoidance code for a propeller based robot with a ping
when i compile the code i get the error "variable needs an operator"
its a bit noobish of me really but im a bit stuck.
And yes i have read the pages on operators in the propeller manual (page 144 in the propeller manual v1.1)
Heres a screen cap for those interested

many thanks for the help

Tom J

RFID Keylock - RBBB Propeller

Gareth's picture

Continued......... Video explains the details ....including the painstaking job of finding the right house wires....ekkk

Removed the "Elfish PC" as its needed on another project.........

..... Replaced with a super cool RBBB Propeller board M44D40 found on the parallax forum, for 20 dollars.

I choose this board because of its size and simplicity (it has to fit inside my RFID box) .

Embedded video: 

The IRIS System

An-Tech's picture

     The IRIS System will basically have three goals:

Navigates with a PING))) currently. Used for experimenting with Propeller on a robotic platform
Using a
The PREP - Bot is my first robot using a Propeller Microcontroller, and my first robot post on LMR. P.R.E.P. stands for Propeller Robotic Experiment Platform. … Read more
The robot controller app is out! Woo Hoo! Finally, a Android-based hobbyist robot controller that works with every microprocessor. There is no corresponding … Read more

Big Brain Boards

Humanoido's picture

Only one photo could upload. It shows the EXOskeleton. Photo #2 not shown has many solderless breadboards and lots more Parallax Propeller chips with high density wiring.

Thinks, controls, sings, talks, takes commands, learns (you teach it), dreams, has life
Using a
Advanced Robot Big Brain 1-year in the making. Over 100 Parallax Propeller chips and over 100,000 enhanced chip neuron processors. Controls 3,200 robots or I/O. … Read more

RFID Part 2 - Multipass Cuckoo

Gareth's picture

Continuation of Hacked Multipass RFID reader ......

Now updated with absolute decode of the 19 byte "Secret-Cypher" hex string to 10 digit readable numerical string....YAY

Embedded video: 

$2 Elfish computer "BlueTooth" Upgrade

Gareth's picture

For the cost of 4 resistors and a $1.80 Bluetooth dongle - your Propeller chip can join the wireless environment.

....again the Propeller chip just bowls me over with its amazing capabilities.....

For more details of how to accomplish this....... zip over to Elizabeth Scotts site

EDIT :- Now confirmed working with 2$ dealextream Bluetooth Dongle.

Embedded video: 
  Well, it's about time for another Walter Update. Busy Busy. I won't (and can't) describe the many, many hardware changes --or to the point, the transition from … Read more
It all started here... http://letsmakerobots.com/node/26267 Once again, I set out on a quest to build yet another controller. I don't know what to call it really, … Read more

setting up a propeller on a bread board

tom_jones's picture

Hi
im having trouble getting the propeller tool to recognise my breadboarded propeller chip.
ive set the chip up according to the schematic below except the eeprom has been ommited.
the propeller tool is telling me that nothing was found on the com ports

Edit::
 

Enables you to draw in Virtual Air-space, or control things ie.Virtual Control Button Panel
I have been a fan of Johnny Chung Lees work with the Wiimote camera for a long time now .... ... (its always/always roaming in the back of my mind) .... during my … Read more

48kHz 16-bit Stereo SPDIF

nmcclana's picture

This has been out for a while, I just hadn't played with it before (check out the video to see what I'm talkin' about).  The audio quality is perfect - it's an amazing effort.  Just an SD card and an LED.  I modified it (very slightly) to work with SDHC and the Propeller Platform's pins, here's the code zip_small.gif

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Add collisions, movement and color to your lightcycles game
This is the second of a 3 part series.  Here's part 1, and stay tuned for part 3.  For more Spin tutorials, go here. Read more
Make the lightcycles game from Tron on the Propeller with this step-by-step tutorial
This is the first of a 3 part series.  Stay tuned for parts 2 and 3!  For my other Spin tutorials, go here. Read more
Ah, the chaos of life... A lot has happened in the the last couple months. This is neither the time nor the place to rant about personal issues or work or money or … Read more