Original schematic for this board does not include some required pins. The 20qfn version of the CP2102 does not have a DTR pin required to send proper reset signal to the AVR during programming.
Need to switch to 24qfn or 28qfn and add a couple of extra passive components
Original schematic for this board does not include some required pins. The 20qfn version of the CP2102 does not have a DTR pin required to send proper reset signal to the AVR during programming.
Need to switch to 24qfn or 28qfn and add a couple of extra passive components
References: http://forum.arduino.cc/index.php?topic=180861.0![image](https://user-images.githubusercontent.com/8482805/51503326-47953380-1d8f-11e9-8da8-5ffb5c4c5004.png)