Shared Projects by MrBlinky

Updated version of my Multi Cart for the Atari 2600. With just two standard logic chips and a FLASH or EPROM you can make a cartridge with up to 256 ROM banks controlled by a menu.

This updated version also allows easy reflashing of the cartridge (with a linker) and it’s also posible for a game to save part of the RIOT RAM to flash!

HomeMade Arduboy entry for the Hackster.io Arduboy contest using this custom PCB, modules and all through-hole parts. 1.54" OLED display, silent buttons and RTC FTW

High voltage serial programmer for AVR Attiny devices

• Easy to make programmer using 12V DC-DC converter with enable and ATMEGA32U4 Beetle board.
• Programs AVR Attiny devices in high voltage mode to recover fuse settings and allows reset pin to be used as GPIO pin.
• Works with Arduino IDE / AVRdude
• No hassle with Windows driver utilities. Uses built in windows 10 driver or Arduino IDE driver.

GITHUB

https://github.com/MrBlinky/avr-hvsp

Parts

*A MOSFET is recommended for a more powerful VCC. However if devices are only programmed using the IC socket or in low power circuits (<20mA), the MOSFET can be left out. In that case VCC is powered by a GPIO pin by shorting jumper J1. When using a MOSFET, Jumper J1 must be left open.