I admit I love AliExpress specifically for low-end electronics components. I often shop around for stuff like IC’s and microcontrollers. And while you can get certain Microchip (Atmel), Texas Instruments and STM devices attractively from China, this has been starting to feel a bit odd to me. After all – a nation that retrieves rocks from the dark side of the moon is surely capable of making a decent microcontroller by itself. So why purchase Western parts from China, and not dip into the actual Chinese-made (and, in particular, engineered) stuff? So that’s what I did!
Continue reading “Cheap chips from China – A brief look at the CH32V003 microcontroller”Tag: microcontroller
Potato, potato – Making an old Sigma lens work on every Canon EOS body
Right, the “potato, potato” thing probably doesn’t work that well in writing, but you get the point. Or at least, you soon will. I got my hands on an old Sigma ‘Super Wide’ 24/2.8 a couple of weeks ago. I came across it and just couldn’t resist; a wide-angle prime is a convenient thing to have, after all. Upon receiving it, I immediately tried it out and…it didn’t work properly. Drat. Well, it did on my old Canon EOS 50e, but it didn’t work on an EOS 7D or an EOS 30. Turns out it’s a well known-compatibility issue. Turns out also that, guess what? It can be fixed!
Continue reading “Potato, potato – Making an old Sigma lens work on every Canon EOS body”