A powerful 48K/128K ZX-Spectrum clone

An AVR-based small test application which implements read and write support for MMC, SD and SDHC cards.

This project combines a GPS receiver module, a Microchip PIC microcontroller and a Secure Digital memory card to make a GPS data logger.

Audio playback using the dsPIC on a simple breadboard layout with a free code library for SD card access from Microchip.

SD card read/write with Arduino.

A GPS data logger that records position data from the GPS module. The position data is received in NMEA-0183 format and store its sequence into any storage device. The position data can be processed with existing GPS utilities for interesting applications.

This project is a basis for developing microcontroller applications connected to an ethernet network.

The MMC-FAT Bootloader project bridges the "bootstrap gap" for an arbitrary set of target hardware that follows a streaming serial bootloading protocol. It connects to an MMC disk through the ATmega168’s SPI by using the MMC bus protocol’s SPI mode. It connects to the target device through the ATmega168’s USART interface.

Some usefull links for implementing access to SD/MMC cards / FAT file system.