It all started with MichlK's ROM-Reader for Super Nintendo (2013)
My first prototype added an LCD screen, SD card support, a battery and buttons for control (2014)
The second prototype replaced the Arduino Uno with an Arduino Mega 2560 and switched over to an OLED screen (2014)
skaman's Cart_ROM_READER_SNES_ENHANCED sketch added a snesCIC and a clock generator to support SNES carts with special chips (2015)
V1 was the first PCB to make building the Cart Reader more simple (2015)
Support for N64 carts was added through the N64 adapter (2016)
V2 added the N64 slot directly to the PCB (2017)
V2 with GBA adapter (2017)
V3 integrated the GBA adapter and also added a Mega Drive slot (2018)
V3 with battery add-on (2018)
V3 with printed case (2019)
V3 with battery add-on and printed case (2020)
V4 changed to a modular design using the control interface from an 3D printer (2021)
V5 is a simplified V4 without a battery (2022)
