Hobby Electronics

This site is a place to publish open-source software, firmware and hardware projects that aren't complex enough to warrant their own SourceForge project.

If you would like to publish here, please contact me.

Projects

• ATtiny13 development board makes it easier to prototype with Atmel's ATtiny13 part. The board is also compatible with ATtiny?5 and possibly other 8-pin parts
• ATtiny26 development board does the same for the ATtiny26, ATtiny?61 and possibly other 20-pin parts
• ATmega8 development board does the same for the ATmega8, ATmega?8 and possibly other 28-pin parts
• USBasp layout is a PCB layout for the fantastic USBasp. The layout is in pcb ( part of gEDA) format
• Terminal Keyboard is an implementation of a USB HID keyboard that gets its keystrokes from the serial port. This means that a laptop can be used as a USB keyboard if you don't have a USB keyboard lying around
• Overheating alarm monitors the temperature of a cylinder head and sounds an alarm if it gets over temperature
• Low-voltage alarm monitors the voltage of the starter battery in a car and sound an alarm if the battery becomes overly discharged
• RS232 to TTL adapter makes it easier to add RS232 support to boards by moving the voltage shifting components onto this board
• ZIP25 breakout board makes it easy to insert ZIP25 parts in to a bread board
• IDC10 breakout board makes it easy to insert IDC10 sockets in to a bread board
• Stepper motor driver uses an ATtiny261 to drive unipolar stepper motors
• USB Atari joystick adapter presents a 9-pin Atari joystick as a USB device

There are also some general Tips & Tricks and some tutorials:

• gEDA tutorial
• GM862 tutorial

Components

There are notes on components, including in many cases gEDA symbols and footprints for those components.