Duinotech USB Host Shield - How to send data with simple code

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1

Hi,
I just purchased this Duinotech USB host shield. I think it is similar to the old circuits@home board. Here is the link to the exact board I purchased:

I was wondering if anyone has experience in using these for sending data packets to a USB "slave" device. All the examples are very complicated (I am not very good with software) and do things like communicating with PS3 controller. Also there are many libraries for these boards which don't exactly make sense to me.

How do I just send data packets? The device I want to communicate with expects certain hexadecimal start bytes followed by opcode etc. Once it receives the data packet and verifies with checksum it replies. All I want to do is Serial.write(0x00) for example but have it go through USB.

In summary:
How to send and receive data through Duinotech USB host with simple code???

2

I don't know about such a simple "raw" USB mode. USB is not as simple as you seem to assume :frowning:

If you want to talk to another USB device, you must configure your USB board to act as an USB master, i.e. find and use that library. Next you have to know the class type of your USB device, so that you can use the right communication protocol - most probably another library.