HOW TO - PC Parallel port interfacing

David writes -

"Using the parallel port is often easier to work with then a microcontroller. I find that testing code on the PC can be much easier then going straight to the firmware as the developer tools for the PC platform are better. This is especially true when working with a new device such as a graphic LCD. Once you get your code working through the PC printer port, then you can easily port the code and what you have learned into the firmware." [via] - Link.

Source and DLL included.

Related:

• Parallel port powerSwitch project - Link.
• Control the Parallel (or Serial) Port with Python - Link.
• Controlling a Parallel Port with Perl - Link.
• HOW TO - Build parallel port prototypes - Link.

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Neuroti-Kart - Homemade electric cart

Wires99 writes -

"This is the Neuroti-Kart. (PsychoKart was taken) Homemade electric go-Kart. Design goals: electric powered, quiet, fast, capable of doing donuts in my street. Home run! " Thanks Gnomic! - Link.

Powered by 4 12 volt car batteries and the frame was made from Home Depot gas pipes... Nice work.

Related:

• Build your own street legal kart - Link.
• HOW TO - Make your own go kart - Link.

From the pages of MAKE:

• Made on Earth. Reports from the world of backyard technology, including a shopping cart go-kart, the "Solar Death Ray," a demolished house sculpture, a gas tank bass instrument, and some seriously big speakers. MAKE 03 - Page 16. Subscribers--read this article now in your digital edition!

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A single-digit Nixie clock

A little follow up on the single Nixie Tube clock we posted, here´s another version sent in from Amanda that RSW made -

"A while ago I found a Burroughs B-5853 Nixie tube kicking around in the lab and decided that I should put it to good use. Since I only had one of this size, I wanted to make a single-digit display out of it. After I saw Jason Harper´s Nixie clock gallery, I decided that one digit really could make a cool clock.

To add to the excitement, I wanted to be able to PWM the display, allowing smooth fading and ultra sexiness (you know, for the ladies :-P) and allow for further expansion, perhaps via a computer interface. For these reasons, I chose the Microchip PIC16F628 microcontroller, which has an on-board USART and does hardware PWM on one pin. Moreover, I´m already quite experienced making crap with the 16F628, including another clock..." - Link.

Ready.Set.GLOW:

• David Forbes, Nixie-display clocks ... - Link.
• HOW TO - Powering Nixie Tubes... - Link.
• Single-digit Nixie, Oscilloscope CRT a Weston ... - Link.
• Tiny Nixie clock - Link.
• Nixie clock gallery - Link.
• Nixie Tube collectors and designers - Link.
• Nixie Build - Link.
• NIXI?-1 - Nixie clock - Link.
• Nixie tube watch - Link.
• Nixie propeller clock - Link.
• Ryan Brooks´s 6502 Nixie clock - Link.
• Nixie tube - tube clock - Link.

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