This forum limits new users from posting images until they reach Trust Level 1. This often trips up new users, since they can't really ask a smart question unless they can share things like schematics or legible pictures of their project.
My suggestions for what they need to do is this:
My top picks for the best first five topics to read are:
Flashing multiple LEDs at the same time (thread by @PerryBebbington & others) -- several different styles of blinking leds. These are a collection of some natural extensions to the Blink.ino and BlinkWithoutDelay.ino . There's more than one way to do it. (And if you can blink LEDs, you can run a motor, trigger a device, or do many other tasks) Also, these multiple ways of doing the same thing task might help folks understand the important concepts behind the often-recommended BWOD example.
I find that by the time I've gone through the recommended steps to present my problem well enough for someone to actually understand my issue, I've often solved the problem myself.
This is good but the title is wrong. New users don't know that the reason they can't do stuff is because they are at TL 0, so the title is not going to attract them to read it. Maybe something along the lines of 'I want to post images, how do I do it?'. Or something. I'm sure someone can do better than that.
This badge is granted when you reach trust level 1. Thanks for sticking around and reading a few topics to learn what our community is about. New user restrictions have been lifted; you’ve been granted all essential community abilities, such as personal messaging, flagging, wiki editing, and the ability to post multiple images and links.
Now that I've re-earned Basic/Trust Level 1, maybe I wasn't trying to post enough images as a level 0.
You haven't re earned TL1, I have restored you to TL2, which is what you had before. I can put you back to TL0 if you wish, but it will be locked there. I don't think it will stay at TL0 if it's not locked because you already qualify for TL2.
When you attach an image, whether it is done by copy/paste or by using the upload icon on the post composer toolbar, this is treated differently by the Discourse forum software than a normal file attachment (e.g., a .ino file). Images are classified as "embedded media". Since images often provide very valuable information (e.g., schematics, picture of hardware setup) and we haven't seen any significant abuse of the forum platform by embedding images (yes, we do see people inappropriately posting images of text, but that is not really forum platform abuse), we give TL0 users an allowance of three embedded media items per post. You only used two embedded items in your post so this is why you didn't encounter any restriction. If you had attempted to publish a post after adding four, you would have seen a dialog like this:
If you had attempted to attach a non-embedded media file (either via the upload button on the post composer toolbar or by drag and drop), you would have seen a dialog like this:
It is true that neither of these dialogs communicates to the user how they can easily overcome these restrictions and also become more knowledgeable about the forum's mores and that is unfortunate. Discourse does make some efforts to onboard new users in other ways, which I describe here:
The "Greetings!" message that is automatically sent to new users and highlighted by the forum software contains this message which is intended to introduce the concept of "trust levels" and links to the guide with the information on what is required to earn a higher trust :
For safety reasons, we temporarily limit what new users can do. You’ll gain new abilities (and badges) as we get to know you.
