arm_now is a qemu powered tool that allows instant setup of virtual machines on arm cpu, mips, powerpc, nios2, x86 and more, for reverse, exploit, fuzzing and programming purpose.
Customizable Bootloader for STM32 microcontrollers. This example demonstrates how to perform in-application-programming of a firmware located on an external SD card with FAT32 file system.
First open source and publicly available System Management Mode backdoor for UEFI based platforms. Good as general purpose playground for various SMM experiments.