Hi,
I got finally the kit and have assembled everything up to step 4 in the assembly instructions. As soon as I tested uploading the WriteInstinct or any other sketch to the Nyboard, I only get:
avrdude: Version 6.3-20171130 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf" Using Port : COM7 Using Programmer : arduino Overriding Baud Rate : 57600avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00avrdude done. Thank you.Problem beim Hochladen auf das Board. Hilfestellung dazu unter http://www.arduino.cc/en/Guide/Troubleshooting#upload.Ok, I thought bad luck and saw the troubleshooting in the manual. I tried several USB ports, cables, FTDI drivers and even computers. The FTDI USB2Serial works well (tested with different Arduino), but the faulty unit seems to be the Nyboard. Maybe I was unlucky and got a non-functional bootloader. So l have bought a USBtinyISP and tried to burn a fresh bootloader. I got the following error:
avrdude: Version 6.3-20171130 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf" Using Port : usb Using Programmer : usbtinyavrdude: usbdev_open(): Found USBtinyISP, bus:device: bus-0:\\.\libusb0-0001--0x1781-0x0c9f AVR Part : ATmega328P Chip Erase delay : 9000 us PAGEL : PD7 BS2 : PC2 RESET disposition : dedicated RETRY pulse : SCK serial program mode : yes parallel program mode : yes Timeout : 200 StabDelay : 100 CmdexeDelay : 25 SyncLoops : 32 ByteDelay : 0 PollIndex : 3 PollValue : 0x53 Memory Detail : Block Poll Page Polled Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- --------- eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00 hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00 efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00 lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00 calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00 signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00 Programmer Type : USBtiny Description : USBtiny simple USB programmer, https://learn.adafruit.com/usbtinyispavrdude: programmer operation not supportedavrdude: Using SCK period of 10 usecavrdude: AVR device initialized and ready to accept instructionsReading | ################################################## | 100% 0.00savrdude: Device signature = 0xffffff (probably .avr8x_mega) (retrying)Reading | ################################################## | 100% 0.00savrdude: Device signature = 0xffffff (probably .avr8x_mega) (retrying)Fehler beim Brennen des Bootloaders.Reading | ################################################## | 100% 0.01savrdude: Device signature = 0xffffff (probably .avr8x_mega)avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check.avrdude done. Thank you.
And I choose the right board according to my settings. The USBtinyISP works fine with a second Arduino I tested.
It seems my Nyboard is a faulty unit? Or can someone help me?


Every board has gone through quality assurance by pre-uploaded test sketches. It's unlikely to break without physical damages or reversed powering. I feel it's still a communication error.
How does the board behave when powered on? Check whether there's any loose soldering on the 6 FTDI pin legs. Powered through FTDI, the blue LED should turn on and the yellow LED may blink. The board should make a sound indicating the test sketch is started (the sketch may be overwritten by your previous operations though). If powered through battery, both blue and yellow LEDs should lit up steady. Pay attention don't ever connect the polarity of batteries reversely. It will damage the board at once.
Since you have a USBtinyISP, you can also try to "upload the sketch with programmer" to see whether the logic chip ATmega328P is good. Make sure that you're making good contacts between the pins. Follow the instruction 4.2.4 to save ATmega328_20MHz.hex to your local folder.
Do you happen to have an Arduino Pro Mini (16MHz)? NyBoard is basically that board with peripherals.