Hello! I made this platform for me, you can use it with an ATMega8 or ATMega328 microcontroller, or any compatible microcontroller. I made a simpler version, giving up the programming circuit via USB and others, like voltage regulator, resulting in a PCB that allows us access to the GPIO of the microcontroller.

For microcontroller programming, you can use a method similar to that of Arduino platforms, load a bootloader in the microcontroller, and with an FT232RL TTL to USB adapter you can program the microcontroller very easy , as it is done on Arduino boards. There is also a green LED indicator on the PCB for voltage, and a red LED that we can use to load and run a Blink sketch.

Have fun with it!

Bill of materials available in the download section, circuit diagram as well.