Read Serial Data sent from an Arduino board

Projects General Guidance
1

I have a pre designed circuit, consisting of a controller which sends data serially ( from data+ and data- i.e. through USB ) . I want to read the data through an another controller, as the data sent is in d+ and d- form I can't use TX RX pins.
So far, I have tried Mini USB Host Shield 2.0 with Arduino nano and I am able to get the data as well but the cost of it is too high.

I also tried using RPI Pico as an USB Host as it is cheaper but I wasn't able to read data. I was able to interface HID devices, but the CDC ACM code didn't work for me ( this was tested 6 months back, haven't tried it again if there's a fix ).

The discussion for the same is here.

But I would really like to know any other cheaper options to do so.

Thanks in advance.

2

Since you did not supply any prices to compare to, no one can tell. Perhaps if you found the components and built it yourself it would be cheaper.

3

Sorry, I wasn't specific before. As I said, I have tried Mini USB Host Shield 2.0, and the IC MAX3421E itself is for $16.07.

Yes, I am building the circuit all by myself but the components that I have gone through are costly.

Pico is the cheapest option, but I am not able to get data through it when used as an USB Host.

Any other ICs you might know under $2/3?

4

Anything here ?

5

Thank you for replying.
Here again, the chip costs £10.51. :frowning:

6

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