Here is the message when i tried to upload sketch "emonTXV3_DirectSerial":
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Arduino: 1.0.6 (Mac OS X), Board: "Arduino Uno"
Binary sketch size: 7,176 bytes (of a 32,256 byte maximum)
avrdude: stk500_recv(): programmer is not responding
What does "avrdude: stk500_recv(): programmer is not responding" mean?
I have installed the driver of USB-TO-UART cable, and "/dev/tty.SLAB_USBtoUART" and "/dev/cu.SLAB_USBtoUART" showed up when I connected the cable to a USB port on my Mac.
My questions:
1. How to fix the error shown in the message?
2. Which serial port I should use, "/dev/tty.SLAB_USBtoUART" or "/dev/cu.SLAB_USBtoUART"?
3, Which Programmer should I select? there are several options, including AVR ISP, AVR ISP mkII, USB ASP, etc.
Thanks a lot.
Re: USBtoUART cable error: programmer is not responding
I only powered emonTx V3 by connecting it to usb port by using USB-to-UART cable. And, I didn't use any other power source, neither AC nor DC. Should I add another power source? I guess USB is good enough to provide power and voltage for uploading a sketch.
Re: USBtoUART cable error: programmer is not responding
Resolved. I connected the USB-TO-UART programmer to emonTX V3 in a wrong way. After I found "GND" mark on V3, I reversed my programmer to the other side (upside down), now it works!