The Arduino software comes with an ArduinoISP sketch which allows an Arduino, correctly connected, to flash another AVR chip. With the use of other libraries like Attiny-core, this means you can use ...

This shield, once assembled, gives your Arduino a 28-pin ZIF (Zero Insertion Force) socket so it can grab onto unsuspecting ICs. The socket is wired to work directly with the ArduinoISP code, but ...