Product instructions:

Friendly Reminder: Our products are only Commended for People with a programming foundation [engineers/ students/ makers, etc..]

Because everyone's project is different we can only provide a simple example code for reference, but we can't guarantee how your program is and what you develop.

We suggest that you could take samples before buying in bulk.[2 or 3 samples at least will be better, in this way you can test them randomly to ensure that the product meets your needs .]

Any unclear, please feel free to contact us before ordering.

Different types of MCU have different usage methods, which we will explain on listing or GitHub

Whether USB cable has data transmission function/Computer interface/Whether the drive is installed/Whether the product interface is connected firmly...

It may be stranded at the local customs [it arrives at the local post office], you need to provide some information for customs clearance[pick it up].

Since we will carry out quality inspection of products again before shipment to ensure normal operation, these after-sales policies can be divided into many situations:

A. For Example code

a. If you can't make the product work normally by using our sample code, you can send us the screenshot of the error reporting information or a detailed operation process video and send it to us, our engineer will check whether there are improper steps, and then you can try again according to our method.

b. If it is a product defect, we will make a judgment according to the actual situation, provide suggestions for you, and then solve it properly for you according to your needs.

B. Private code

If you are unable to work because use your test program, you need to check whether your program/our product is compatible or supports the project.