Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
You can't upload videos directly but you can do as Ian suggested - upload to YouTube (you can set it to "unlisted" if you don't want it to show publicly on your YouTube channel, and only people with the link can view it). Then use the Insert -> Media option in the editor here at ETO to embed the video into your post.