There is no serial message, other than what is transmitted from the CW to the DUT. I guess there is an echo back. So trigger on the RX from the DUT? Rising edge? High/low? Low High? It is serial, I think a transition from high to low is what I want…? I am reviewing that link now.
Will something like this work?
https://www.amazon.com/gp/product/B07PMMX6MG/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
https://www.amazon.com/gp/product/B07F8RFMD4/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
I am running the CW and DUT from the same USB port, should I not do this?
Any recommendations on the shunt resistor? The datasheet does not say what the current draw is but the voltage can go as low as 2.0v, max 5.5v. 8 bit micro. Think I saw a general shunt resistor in a post somewhere but can’t remember where it was, let alone the value. A shunt resistor totally makes sense. How else will it measure the load? Value of shunt, location, VCC - Embedded Security - NewAE Forum … What does a shunt resistor look like?
Oh, I see some on Mouser. I don’t have any of these; can I barrow one from the ATMEGA Target board?
Thank you for the note on the reset_target(scope)… I have my own function that does the same thing.
I will change to print(scope) haha too easy.
Gracious for your response!