What's new?During the week I had little time to work and no access to a workshop, so all I could do was ordering the components and planning. I was also busy with eagle designing all the PCBs needed by this project. During the weekend, I had an...
What's new?I finally managed to make a new driver module for the only display board I had. I made it on a prototyping board, and somehow it works:That board should hold 2 more characters (day of the month), however I don't have it yet. I finally feel...
Knowing we need to amplify the signals for the speaker, we built a small Darlington amp using transistors. It wasn't terribly great. The voltage loss was high and we didn't get a usable amount of audio. We are not yet happy with the final results of...
04.17.2014 (Kittan)Today was an interesting day. Well, not really. I got the housings finished up for the screens and all screens mounted within said housings. Last night we loaded some debian on the NotSoGreatway and found it lacking driver compatibility,...
04.18.2014 (Kittan) Friday is officially Cheeseburger day around here.Also it took a day longer than it should have but we finally this afternoon got the multihead stuff to work. I fiddled with some older drivers last night, and Novak came in today with...
Step 2: Motion. Time for a RAMPS board! After a lot of hunting around I decided on the "Ramps 1.4 Mini Set" from gadgets3d.com. For only $90 it came with RAMPS 1.4 board, 5x G3D stepper drivers, cooling fan, SD card reader, 2x thermistors, and wiring...
Today I finally worked out all the bugs in the IK and servo driver software. This now allows me to set any leg at an absolute x,y,z co-ordinate (within reason, of course... there are physical limits to how far each leg can move). To demonstrate...
Tonight Stubby took its first steps via the Processing API over Bluetooth. The Processing test program is very simple: Stubby stubby = new Stubby(this, "/dev/rfcomm0"); stubby.turnOn(); stubby.moveForward(200); stubby.moveBackward(200); stubby.turnOff();...
Uh oh. I'm in the competition. Guess I better get to work.There's no chance of having the Decapede ready any time soon, so I bought some stepper drivers off eBay (Geeetech DRV8825) and started wiring them up on a breadboard and connecting them...
So I think we underestimated how much free time we would have (at the same time as each other) despite having expected little. We are going to continue working on this project despite missing the Sci-Fi Contest deadline.I have finished my courses for...
The motors I wanted to use are to weak to direct drive the wheels. Now I want to use gear motors as they have more torque. I have to build a new motor driver circuit with a IRL510A mosfet as the motor switch.
I found some matching gear motors for my mouse bot. And wheels which fit on the axes. The wheels are 32 mm in diameter. And the motors rotate with only a liitle start voltage up to max 6 volts. So I can use my stepless motor driver program with them....
I soldered a new motor driver with an IRL 510 mosfet. I did this because the transistors I used got too hot and burned out. The driver for the left motor works with the old motor. So I can now build the driver for the right motor in the same way. The...
Now I found out that the pins of a Propeller are to weak to switch an IRL 510. It seems that my Propeller died after switching the motors on. I now want to use a L298 dual H bridge motor driver from Solarbotics. It's sold as a kit. Then mousey II can...
The pendulum design was getting quite troublesome with need to balance the multiple motors, so I've decided to try creating individual modules that can maintain a constant height. Then hopefully by joining multiple modules I should have a flying object. The...