I've been promising to put my robot on here, so now here it is,
It started as a robot to navigate around using ultrasonics as a sensor. It has since evolved. It still has the ultrasonics, but also has infrared, to home in onto a beacon.
Close up, of one of the ir detectors.
But I'm not finished yet. Bigtrak (the base for my robot) was a childhood toy, that no longer worked and bigtrak had an accessory. Bigtrak had a trailer with a tipping mechanism.
The tipping mechanism was broken, so now it's operated by a servo
The trailer plugs into Bigtrak via a stereo jack, so it allows 360 degree rotation while still maintaining electrical contacts.
I have added a 3 tier expansion board onto the back. At the moment this houses a voltage regulator, power switch, battery monitor and a port for programming.
Eventually it will have some more gizmos on there, such as a picaxe 08 to control headlights when it's dark, that kind of thing.
Recently, I have bought this USB programmable robotic arm
It's programmable to some extent. It can be plugged into a pc, which tells it to move the joints for a set amount of time, so there's no feed back on where the joints are positioned, like you would have with a servo.
I'm hoping to eventually have this robot arm attached to my trailer, so it can pick things up, dump them in the trailer, drive them off somewhere and tip them out.
What I'd like, is a robot that'll play fetch. I throw a small ball with an ir led in it. The robot scoots off, picks it up, places it in it's trailer, brings it back to me and tips it out.
I realise this is a long way off, but it's something to work towards.
Thanks for reading,
The video here shows an early up and running robot