I'm having problems with this controller.
As soon as the Dagu Spider board is connected to the usb the L1 - D13 led is constantly blinking. The board is being found by the computers and a port assigned. When Arduino IDE says Uploading, the LED goes out then after a short time starts blinking again and I get the error "avrdude: stk500_getsync(): not in sync: resp=0xff". Therefore but I cannot upload any sketches and the ones I have tried have all been the Arduino examples. So nothing fancy or large.