Aug 302014
 

A computer running BASIC, generating composite video and reading PS/2 keyboard input using a single ATmega microcontroller. A computer running the TinyBASIC programming language on an ATmega 1284P microcontroller as well as generating composite video signals and reading PS/2 keyboard input. The computer is easy to assemble at home as all components are through-hole. You can buy ready made PCB. System features include:

  • 8bit ATmega microcontroller running at 16MHz (ATmega 1284P).
  • Over 7KB of memory available for creating BASIC programs.
  • Header for external EEPROM ‘cards’ which allow full size programs to be saved (using a 25LC640 EEPROM IC); 4KB internal EEPROM available within the microcontroller.
  • USBasp programming header allowing easy programming of the computer once assembled.
  • Many GPIO pins for connecting to components and other circuits.
Aug 292014
 

… is not a car, but ARM “Bare Metal Widget”. It features:

  • NXP LPC1114FDH28 32-bit Cortex-M0 microcontroller
  • 70 x 43mm footprint,
  • lithium polymer battery and USB power selection,
  • a lithium polymer battery charger,
  • a 2-megabyte Flash memory,
  • a basic user interface,
  • a FTDI-cable compatible UART header,
  • JTAG-SWD,
  • 16 I/O for connectivity.

The arm-bmw is open hardware (CC-BY-4.0 licensed) and open source (MIT licensed).

Jul 162014
 

It looks like CP/M on ATmega88 – and it really is! Take your Mega48, 88 or 168, connect SD card and RAM, and voila! Really simple, but functional. Someone care to rework it for an Arduino? 🙂

Jun 052014
 

AVR-CDC is low speed USB CDC (Communication Device Class) soft device, suitable for “a poor man’s FTDI replacement”. Its firmware is suitable even for ATtiny45. It can handle 1200-4800 Baud using internal oscillator on ATtiny45, but with ATtiny2313 or ATmegas can handle up to 38k.

May 222014
 

Arduino and Atmel unveil the Arduino Zero, a simple and powerful 32-bit extension of the platform established by Arduino UNO.

The board is powered by Atmel’s SAMD21 MCU, which features a 32-bit ARM Cortex® M0+ core and one of its most important feature is Atmel’s Embedded Debugger (EDBG), which provides a full debug interface without the need for additional hardware, significantly increasing the ease-of-use for software debugging. EDBG also supports a virtual COM port that can be used for device programming and traditional Arduino boot loader functionality.

Credits: Photo and info (C) Arduino.cc, reused under CC-BY-SA

Apr 302014
 

FT800 provides a powerful feature set in a small package to create dynamic HMI interfaces. The device supports line by line graphics rendering to 1/16 of a pixel on displays with resolution up to 512 x 512 with 262K colours. It also provides:

  • Mono audio output
  • 64 in-built polyphonic tones
  • Decode for mono 8-bit linear PCM, 4-bit ADPCM and μ-Law coding format at sampling frequencies from 8kHz to 48kHz
  • SPI/I2C interface to host MCU
  • 1.8V to 3.3V IO levels to host MCU

FTDI FT800 is packaged in 48QFN, but there are a lot of ready devices. Here are some of them:

Datasheet, info etc at EVE homepage.

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