If you think this is easy, then I think you are missing something. This is hard. You need to know your hardware intimately to figure this one out.
Free Less Is More Hacker tee-shirt to the first correct answer in the comments. More details and demo video below…
Everyone loves blue LEDs and everyone loves coin cell batteries, but if you want to power a blue LED from a coin cell you will need some help. Here is a super-cheap and easy way add a to boost your LED voltage with only an additional capacitor & diode, and a little software.
You’ve probably heard about the refreshingly simple Public Radio (TPR). There is no tuning knob needed since your TPR magically knows your favorite station straight out of the box.
Like most magic, this illusion of simplicity involves a lot of work behind the scenes. Each TPR has to be custom programmed by hand, assembled, and then lovingly packed before being shipped to your door. If only there was a way to program an assembled TPR without opening the sealed box…
TFW the article is choc-full of high-density information, but the comments are page after page of “This is great!” and “What changes would I need to get this working on my my 1978 Chevy Tahoe with the special Darfur 18V option?” and “I English Not how make do it?“. The few useful comments are lost in the noise.
Don’t let this happen to your articles. Please. Here’s how to chaff-proof your wordpress.com site in 5 minutes…
What do you do when you see a Chinese seller pop-up on Amazon selling a product for less than it costs just to make it? You order one and wait to see what comes!
Can you figure out how anyone could sell and ship a non-copyable product for less than the manufactured cost? Oh, the sublime irony of what actually showed up!…
TLDR; If you see ink flooding around the die when you touch a Sharpie to the face of a Neopixel, you should probably throw away the batch. Disturbing video example after the jump.
I recently found a huge lot of WS2812B Neopixels on Alibaba for $3/meter, which is about 1/2 the going rate in China and about 1/8th the price for similarly spec’ed strips on Adafruit. So I bought a lot (both meanings) of them. A NeoPixel is a NeoPixel, right? How bad could these NeoPixels be? Very bad, it turns out…
We have all gotten used to bugs causing lost data or inconvenient crashes, but here is a confirmed case of a software bug directly leading to the user’s divorce.
