AVR miniICE JTAG Debugger with FT232RL as USB-COM converter and Atmega16A as controller chip.
Firmware you can get [here](http://pol-sem.narod.ru/AVRminiICE/jtag.htm) or [here](https://drive.google.com/open?id=1wDfHNWp320cT2iRtB_AiA2oZmXqMq-k9)
Just make PCB and upload firmware. After you canuse Atmel Studio 4 (tested) and JTAG ICE v1 debugger.
Multifunction USB to JTAG / UART / FIFO / SPI / I2C tool
Plugging a CJMCU FT232H board onto the Shukran creates an easy-to-use multi-function bus / device hacking and analysis tool with protected (current limited) 5V power pins, 3.3V power, spare pullup resistors and indicator LEDs, all for around $16/£12 total. The Shukran is designed to be assembled by anyone with moderate soldering skills; all...