[youtube=http://www.youtube.com/watch?v=ZImGw8d2ksc]
Finally got some time to work on r2 this weekend, and have movement! He can now move arond, and spin and stuff.
Unfortunately, still need to add some odometry, not quite worked out how thats going to work yet!
2009-05-23 4:54 pm MicroMouse, R2, r2v1 and Robotics
finally got a gearbox mount that i'm happy with, just need to work out how to add odometry to it, since Plan A had two magnets close and opposite each other. One wheel turning would turn the other!



2008-12-19 11:49 am Computing
Ever had an email attachment you want to put on the web, but cant be bothered downloading it to your PC, finding your FTP details, uploading it to a server, fixing the permissions, wondering why it isnt showing up then finding you put it in the wrong folder?
Well, Dan Had the same problem, and decided there must be an easier way, so he created ChompMail!
Just forward your email to hugo the hippo, and he'll chomp it up, and put it on display for all to see!

2008-11-28 11:50 am Electronics and Gaming
After seeing skeezix's unboxing of the pandora devkit, i decided to make a parts list of all visible ICs on the board.
U1 8JA98/JWI92 - [Micron RAM Package] atop TI OMAP 3530 SoC
U2 TWL4030CI - TI Audio & Power Management ChipU3
U4
U5
U6
U7
U8
U9
U10
U11
U12 TI 1773 - Low Voltage & Low Power Stereo Audio DAC with Lineout Amplifier - Thanks Moe
U13
U14
U15
U16
U17
U18 ATMega8L - Atmel ATmega8L Micro ControllerU19 ALVC00 - Low Voltage 2 input NAND GateU20 ALVC00 - Low Voltage 2 input NAND GateU21 WE245 - TI 8-BIT DUAL-SUPPLY BUS TRANSCEIVERU22 ATMega8L - Atmel ATmega8L Micro ControllerU23
Can't see U#
1x WG7210 - Wireless & BT Module including TI WL1251, WL1251FE and WL1251PM
1x WY245 - TI 32-BIT DUAL-SUPPLY BUS TRANSCEIVE
The ATmega8 sat near the SD cards interests me, it'd be nice to get a code dump of it to see what it's up to.
If you have any more information, can read any chip markings i can't, have a pandora devkit and fancy taking some more high res shots for us all, or datasheet links for the above, please leave a comment.
2008-09-07 7:34 pm Electronics and Robotics
While waiting for the last parts for r2 to arrive, I have been toying with building a bot based on... well... a toy!
I bought this remote control tank off ebay last year, and took off the plastic top. Today I stripped off the other unnecessary bits of plastic, and mounted a breadboard on top.
Next part of the plan is to either modify the existing drive board to allow direct drive from the microcontroller, or build a replacement based on a single-chip h-bridge device.
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