Engbedded is the founder and main­tainer of pop­ular non-profit Open Source hard­ware and soft­ware pro­jects such as the Semi­tone Lighting Con­trollers pro­ject, the VeloAce bike com­puter for Palm OS, and the Wake-On-LIRC infrared receiver.

We offer pre-pro­grammed micro­con­trollers and parts for our Open Source hard­ware pro­jects. Check out the list of pro­ducts for an overview. Please use our con­tact form if you are inter­ested in pur­chasing pro­grammed or unpro­grammed micro­con­trollers.

Also, Engbedded pro­vides pop­ular free online ser­vices, such as the AVR® Fuse Cal­cu­lator.

Enjoy your stay.

Dipl.-Ing. Mark Häm­mer­ling, CEO of Engbedded

The Semi­tone Dia­mond dimmer will prob­ably get a new user inter­face. This includes an enhanced LCD screen of 4 × 20 char­ac­ters. Checkout the EngDR for the latest changes.

The latest SVN revi­sion of the Semi­tone Dia­mond OS now includes an AVR109/910 com­pat­ible UART boot­loader written by Martin Thomas (et al.), cus­tomized to sup­port the Dia­mond I/O shift reg­is­ters.

Boot­loader mode is entered when the Standby front panel button is held while the Dia­mond is reset. Updates can then be flashed via UART with any AVR pro­grammer utility that sup­ports the AVR109 pro­tocol, such as avr­dude. You can use any fron­tend UART inter­face, such as Blue­tooth (wire­less updating is fun!), USB, RS232, RS485 and so on.

How­ever, you are not forced to use the boot­loader for pro­gram­ming the main OS image. When flashing via ISP, both OS and boot­loader ROM images are merged. So you can still use your favorite ISP pro­grammer and use the boot­loader any time later.

The Fuse Cal­cu­lator got a huge update. It now sup­ports 141 AVR devices. The data is based on the descrip­tion files of AVRStudio 4.18. Still, please beware of incon­sis­tent or broken orig­inal data from Atmel. Please notify me if you find errors so that I can patch the database.