TekMaker - make something!

RGB LED Photoflood Links to code and video at the bottom of this article So, I was looking at the price of photo floods for photography and video production and baulking at the prices. I had previously used a battery powered one with 160 LEDs that cost around 20 GBP which was ok for basic photography lighting fill-in, that is to supplement room lighting. But for video you really need something more powerful. So my criteria was  Must be mains powered Must be RGB programmable for effects Optional - can display scrolling messages Must stand prolonged usage Cheap enough to make several to provide multiple light sources, possible with differing tints. Easy to construct and copy. Common sense and available components said it should be Arduino based because I have a drawer full (or did) There are many variants as cheap as 3 GBP + postage and packing in multiple pack purchase They are easy to program and have simple power needs, i.e. 5 volts the same as WS2812 LEDs I have seen WS2812 256 L...

So I recently decided, like many others during lockdown to get my Amatuer Radio Foundation license, which is the first of three possible levels. Each subsequent level allows you to transmit on more frequencies and with more power. It also allows you to use more types of transmission such as personal hot spots and build your own equipment. There is plenty of information online on how to pass your tests and I include some links to those resources below. Be sure to search for amatuer radio clubs in your area. Even with current restrictions you can get support and participate in Zoom or similar meetings or listen on the airwaves. Many people are scared to take an exam. The online training and books will give you all the information that you need to pass. The exams are multiple choice with 4 answers and you will need some basic maths skills. You can use a calculator in the exams and will need a basic 4 function one for the Foundation, and a £10 scientific one for the other two levels. But ...