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Programming interface for Medusa


#1

I accidentally ordered an USB Client SP instead of an USB Serial SP.
I don’t think it would be possible to use the client one :frowning:
But:
If I use USB Client SP (or DP) for power only (only using 3V3, 5V0 and Gnd by breakout board), would it be possible to connect a normal USB/Serial converter or PC RS232 port to the serial pins?
Is it voltage compatible or would I need a conversion?

If not, can use USB Serial module (without power) + my powering via breakout and SP/DP? Serial SP is not available here that quick.

See picture.


#2

Our will work but you will have to quickly press the reset button when you try to deploy. It is going to be a bit difficult.


#3

@ Gus - Our means USB Client SP ?
What would be the needed timing?
Is it more: Release reset button -> start deploy withn ? sec.
or start deploy -> push reset within ? sec?

I could live with that until I get my correct modules.


#4

There is an option in Arduino IDE to enable compiling output. I usually press reset when it is done compiling and is about to try to upload the code.


#5

I just compared USB Client SP and USB Serial SP.
I don’t see how USB Client could work, because it simply connects the USB pins to the board.
Or does MedusaMini also have a USB chip onboard behind PROG socket?


#6

It wouldn’t, but you are using it just for the power, according to your diagram, right?


#7

But what can I use as serial.
Will a standard PC port (+/-12V level) work, or a FTDI USB/Serial?
Or do I need the USB serial Gadgeteer module?


#8

No for the 12V levels.
Any FTDI USB Serial should work, Gadgeteer USB Serial should work too.I have used the one from Adafruit before as well as old FEZ block module.


#9

:frowning:
Then I have to wait for ether my USB serial SP which is somewhere in Postal Ville or the USB serial which I’ve ordered today.