(I’m in a robot mood this week, ok?) [Wyatt] sent in his posterbot. Lacking the gift of girly handwriting, he grafted an inkjet printer onto his Roomba to make posters for him. There have been other bots to do this, my favorite being the graffitiwriter. Of course, [Wyatt]’s bot is less likely to get you arrested.
Want a shirt?
By the way, I’ve got a spare Hack-A-Day shirt sitting here. Send in a link picture of your Hackspace to the tips line. The best/worst will get some attention and the best one gets an official Hack-A-Day shirt.
contests679 Articles
Design Challenge: The Missing Entry
I thought I’d mentioned every entry of the contest, but I managed to let one slip through the cracks. One of our favorite hardware hackers [sprite_tm] submitted this AVR ARM dev board/game console. The LCD is from a Nokia 5110. The brain is a LPC2103 ARM controller, and is designed to run a chip8 emulator.
The Design Challenge Winner!
I’ll keep this short and sweet. Fabienne, Eliot and I unanimously chose [Nuxie1]’s entry as the winner. His board is a nicely done USB PIC prototyping board. [Nuxie1] gets some sweet prizes and some bragging rights. Congratulations [Nuxie1]!
It seems that our tips line has been screwed up for the last week or so. If you’ve got something good, don’t be afraid to re-submit it.
DC Entries: Last Batch
Here’s the final batch of entries we received and considered for the Design Challenge.
[Chris] sent in a stereo amplifier (watch out for pop-ups) designed for iPods (or similar) using LM386 amps and a minimal parts count.
[Fabian] submitted this excellent tube amp. It’s based on the ECC83/12AX7 tube, and runs off a mere 12-14VAC.
[Edgar] sent in this combination PIC/AVR programmer.
Finally, we’ve got a simple PIC/EEPROM programmer by [Ian]. (view the unzipped version here)
DC Entries: Almost Done
We finally came to a decision about the winner of the Design Challenge! (But I’m not telling you until Friday.) Before the winner is announced, there are some more entries that deserve attention.
First, there’s [Henk]’s g-force meter. It’s based on an ATiny26 micro-controller, 30 LEDs to display the force and the ADXL103 accelerometer.
There’s an adaptation of the no parts pic programmer, by [Patrick].
[Evan] sent in his PIC prototyping board using the monster PIC18F4550.
I’ll have one more batch of entries later this week, and the winner will be announced on Friday. Yes really. I’m going to give it a few days just to make sure that all of our DNS issues have cleared up.
Design Challenge: Hung Jury
We’re not really hung, but it is taking a while for us to decide just who get the title. While we decide, here’s a couple more entries remind you what it’s all about.
[Razvan] sent in this excellent entry. (I’m hosting it on my personal server since he didn’t have one)
The writeup could be a bit clearer, but the design is pretty sweet. It features a mega avr brain and a microchip ethernet controller with a software based USB interface. It’s a pretty intriguing design – lots of possibilities for ethernet controllable projects.
[Tom D] sent in this rolling codes garage door opener. This will step through all the garage door opener codes for garage doors made before 2003.
DC Entries: Six Channel PWM Modulator
[Waggy] submitted this handy device for his entry. It uses several 556 timers to clock a driver chip that drives the mosfet output. If you’re not familiar with PWM – think of it as a six channel motor speed controller, but far more flexible. [Waggy] did a nice job writing up the details on the board – definitely a strong entry.
