A minimalistic single sided Arduino compatible development board that is easy to make.
Bringing a 12 year old Roland MDX-20 up to date
How to add: USB connection, FTDI drivers and a new postprocessor to a low cost CNC mill (Roland MDX-15 / MDX-20).
Generic routine for receiving short asynchronous transmissions
D1 detects short asynchronous transmissions. It can learn new, or identify stored commands.
• Compact
• No hardware USART
• Generic (works with all standards).
Use D1 to add remote control functions to your project!
Miniature USB to serial PCB
Build a small FT232 USB to serial adapter that fits directly in the USB port.
Ultimate PIC16F628/627 breakout board
A miniature breakout board for rapid development of microprocessor projects.
Repairing a broken AirPort Express
How to fix an AirPort Express Base Station that does not power up.
I added a 5V power adapter and a 3.3V LDO instead of the broken power unit.
Homemade iPad augmented reality cars
How to build an AppMATes compatible cars from PEZ dispensers using:
• PEZ dispenser (cars2 edition),
• Knife, sandpaper,
• Quick glue,
• Double sided adhesive,
• Conductive foam,
• Conductive film,
• Conductive glue
Web controlled home automation
How to build a web controlled home automation center.
This post describes the software used with the miniature router (OpenWrt), the PIC 16F628 lab board, the serial communication and radio protocol.
Web access lab board (internet of things)
Lab board to connect almost anything to the web.
This low cost solution uses a 3$ PIC16F628 microprocessor and a 15$ OpenWRT router.
Bring your projects online today!
Access serial communication on a mini router (no extra connector)
You don’t need to cut a hole in your router to mount an extra connector for serial communication.
Use the existing micro USB conector instead! (This example uses a TP-link WR703N running OpenWRT)

