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Software / Axon 2 - Bootloader - program too large?
« Last post by fxgovers on January 08, 2016, 08:40:16 PM »
I'm having problems with any program for the Axon2 that includes rprintf.  The bootloader says that the program is too large for the chip.  The compiler says that the program only takes 20% of the available space:

AVR Memory Usage
Device: atmega640

Program:   13362 bytes (20.4% Full)
(.text + .data + .bootloader)

I'm compiling on AVR Studio 4 on windows and using the linux bootloader to upload to the board.  The MacUber program I cannot get to work on my computer.

Any suggestions,
Francis Govers
Misc / ROBOTIX 2016 - India's largest Robotics Festival!
« Last post by robotix2016 on January 07, 2016, 02:54:24 PM »

Technology Robotix Society presents ROBOTIX 2016, its annual technological extravaganza, to be held during 21st - 24th January, 2016 as a part of Kshitij, the annual Techno-Management Fest of IIT Kharagpur.
Official website - www.robotix.in
To participate register at www.ktj.in

- To build a manually controlled robot capable of climbing stairs whilst picking, storing and placing objects on its way.

- To build a gesture controlled semi-autonomous robot that is capable of storing blocks on multi-layered platforms according to their RFID tags.

SHERLOCK- To build an autonomous robot that can follow compass headings to go from start to finish via minimum waypoints using IR receiver to receive arena and waypoint information.

.- To build an Image Processing robot capable of detecting characters, using an overhead camera and traversing them such that the equation generated by the traversal fulfills a certain condition.

- To build a remote controlled electric-powered robot that can be used to complete broken pathways and transfer packages by running on land as well as water.

PS: There is no abstract submission for the above mentioned events.
Visit our website, www.robotix.in for details of our events, tutorials and other general resources on robotics and to stay updated on developments. If you have any query just post them on discussion forum of respective event!
Mechanics and Construction / Re: Robot Construction Log
« Last post by Aaroneus on January 06, 2016, 07:56:46 PM »
I think what you are doing is awesome! I read How to Build Your Own Robot Pet in high school and it set the standard for me in terms of what to expect from a personal robot.

It would be great if someone would rewrite the book, using current components and technologies. Tech has advanced since then, however many of the capabilities such as tonal commands are still feasible and excellent ways of interacting with a robot. There are components that the hobbyist can use that would ease the pain of implementation.

Keep up the good work! Keep us posted!
Anyone Studying Robotic Drone Flocking Behavior for Wide Geographic Area Target Identification?

Seems to me that extremely large expanses of area could be covered with "flocking" drones to identify targets or accident locations.

Not only could drones cover large expanses of land, flocking drones could act as "repeaters" sending navigational commands from one another such that a control signal could be passed along over a greater distance than one drone could fly away from "central command."

Not only that, but with the appropriate flocking behavior, damaged or malfunctioning drones could be accommodated with a self-healing network/flocking algorithm.
Mechanics and Construction / Re: Robot Construction Log
« Last post by FIFO on January 06, 2016, 06:08:37 PM »
     It has been a while since I have posted, but since then I have made a lot of progress on the robot. I have finished 3 PCBs, and have added a power switch, a reset switch, and programming port to the robot. I also reinforced the steering column and drive motor with aluminum angle stock.

    The first PCB is an amplifier board. This board amplifies and filters the signal from the microphone, and also amplifies the audio produced by the robot's bark generator.

     The second PCB is an automatic programmer for the robot. The robot's memory consists solely of RAM, which means that whenever the robot's power is cycled, the contents of the memory are lost, and so the robot must be reprogrammed. The book's solution to reprogramming the robot quickly,is a tape interface. This allows the robot to store its program on a cassette tape, and then when needed, load it back into its memory. However, the circuitry for the tape interface is larger, and more complicated than the main board on the robot, and so I decided to design a simpler more compact solution. I ended making a simple board with a flash based AVR microcontroller that is able to load a program into the robots memory. I find it a little ironic that I used a relatively modern microcontroller, because in the rest of the robot, I have been mostly sticking to using parts that would be available in the 70s, as used in the original project.

    The last PCB is a manual programmer for the robot. It allows me to manually load a program into the robot's memory. It consists of two 4-bit counters, two 7-segment display drivers, a 555 timer, and a few buttons and switches. It is very painful to use this device to program the robot, because to load a single instruction, I have to setup the address, then latch the address, then setup the data, and then finally write the data to memory.

    Now that I have nearly completed the robot, I will attempt to program the robot, and debug some problems on the robot's main board.

Robot Videos / Rebirth of the ER1 Personal Robot Video
« Last post by Aaroneus on January 06, 2016, 05:00:07 PM »
Here is a link to my website where I have a video of my ER1 going through the motions:

Mechanics and Construction / 3D Printed a Webcam Mount for an ER1
« Last post by Aaroneus on January 06, 2016, 02:39:11 PM »
Hey there! - Just yesterday I 3D printed a mount for placing a Microsoft VX webcam onto an ER1 robot. A fellow robotics enthusiast suggested I upgrade the webcam on the ER1 and I used the upgrade as an excuse to learn 3D CAD modeling and design. A before and after video can be seen on my FB page dated 1/5/2016. the FB page is at:
https://www.facebook.com/aaron.l.richards.7. I had the 3D model printed at the local UPS store. It was about $30 and took about 4-5 hours.
Robot Videos / ER1 Microsoft VX Webcam Mount - 3D Printed
« Last post by Aaroneus on January 06, 2016, 02:32:02 PM »
Hi there folks! This is my first post to SoR.

I've designed, modeled, and 3D printed a mount for using a Microsoft VX Webcam with an ER1 robot. The reason is that the KritterCam that comes with the ER1 is dated, and a fellow robotics enthusiast suggested that I upgrade the webcam. I thought it was a good idea and also a good excuse to practice my newfound skills in CAD. Just finished last term a 2D CAD class at the local CC.

The video is on my Facebook page, the date: 1/6/2016. The link:https://www.facebook.com/aaron.l.richards.7
Electronics / Re: Connecting My Axon II to Easy VRShield 3.0
« Last post by mallster on January 03, 2016, 04:57:31 AM »

I have a VR 2.0 and have used it with a Axon and programmed using the webbot studio.

Since you have bought the shield version. Which was made to plug into a arduino. It seems you have 3 options.

1. Buy a arduino.  I believe Veear have libraries on their site. And program through Arduino.

2. Remove the VR 3.0 from the shield, plug required pins into the AxonII. ( rx, tx and power and gnd.)

3. Plug into- ( rx, tx and power and gnd.) on the VR Shield and use the Axon.

You then need to connect to the vr3.0 through usb to train voice commands using the Veear software.
After that. What I did was use webbot studio to program from there.

Not sure on your level of experience but just remember rx goes to tx and tx to rx.   ;)
Electronics / Connecting My Axon II to Easy VRShield 3.0
« Last post by Ahdem99 on January 02, 2016, 03:33:08 PM »
Saw a tutorial on Instructables on how to make a voice-controlled robot, but in tutorial they showed me how to use it with Easy VRShield 2.0, but i bought 3.0. and I don`t know how to connect my VR to Axon. I am new to Robotics, so im not so familiar with it. I know how to program it, but i don't know how will my Axon communicate with VR. I don't know where to plug my wires in.
Everything is perfectly explained here, but it`s just for connecting Axon to VR 2.0. : http://www.societyofrobots.com/sensors_voice_recognition_robot.shtml
Please somebody help. I need it.
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