Hello Al, W4KY,toggle quoted messageShow quoted text
That eBay Arduino UNO, or any other development board called an
Arduino UNO should work. You will be using it as an ISP programmer.
You will use the Arduino IDE > Tools > Programmer: > Arduino as ISP to
reset the ATmega328P microcontroller on the Arduino UNO to act as an
ISP programmer. Or, you can buy an actual ISP programmer, as the first
reply suggested. Or get both the Arduino UNO board AND the ISP
programmer and experiment to find out which one is easier to use. I
suggest getting the Arduino UNO and following the tutorial. Good Luck,
and Best Wishes for success in updating the firmware.
Ken, KM4NFQ "Not Fully Qualified"
On Sat, Nov 9, 2019 at 2:00 AM Al Clark <hotdogx@...> wrote: