Voltage to the Arduino is from +5V power supply rail and the FT232 is running off USB voltage. We have everything set up on a breadboard as seen here: When uploading a sketch to the chip, the FT232 TX LED will flash a few times before the errors come up on the IDE. When initially plugging in the USB cable from the FT232 to PC, the TX LED flashes about 3 times (RX does nothing). When we try to upload a sketch we get the following errors:Īvrdude: stk500_getsync(): not in sync: resp=0x00Īvrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51 The board is set as Arduino Duemilanove or Nano w/ ATmega328 in the IDE as well. We have the USB Serial Port listed in device manager as COM6 and have set up the Serial port in the Arduino IDE for COM6. For a school project we are using an FT232 to interface with our Arduino ATmega328.
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