ATtiny1607 Curiosity Nano features an on-board debugger that can be used to program and debug the ATtiny1607 using UPDI. The on-board debugger also includes a Virtual Com port interface over UART and DGI GPIO. Atmel Studio/Microchip MPLAB® X can be used as a front-end for the on-board debugger for programming and debugging. Data Visualizer can be used as a front-end for the CDC and DGI GPIO.