We learn about Google’s AIY voice and vision kits at this year’s Maker Faire, and check out a few projects that make use of the kits’ artificial intelligence capabilities. The vision kit, in particular, impressed us with its ability to recognize objects, faces, and even emotions. (...)
Getting your iMac Pro repaired is even harder than expected…
Apple’s new iMac Pro is a $5,000+ machine but many users are reporting that Apple Support isn’t servicing them—even under warranty. They repaired ours, but the Genius Bar destroyed it in the process. What a disaster! (...)
This is a different twist to a super-simple solar charge lighting circuit. I’ve never used reverse leakage current through a solar panel in this way before, but it seems to work.
The project uses a cheap eBay solar panel (5 or 6V) and a standard phone lithium battery with built in protection. The charge current is limited purely by what the solar panel can deliver, in this case about 100 to 200mA. The intensity of the LEDs will depend on the value of the series resistor and the transistor’s base resistor. The unit is more intended for decorative use than area lighting.
I built a similar circuit years ago and use it to drive a string of meteor lights. They’re still going strong years later and even work well into the night in winter.
I’m wondering how consistent the reverse leakage current from the solar panel will be between panels. It seems common enough to require the inclusion of a reverse discharge diode in most solar chargers.
The component list is:
Nokia or other protected phone battery.
Solar panel from eBay 5 or 6V 500mA output max (100ma is fine).
1N4001 1A diode. (or any from the 1N400X range)
10 ohm resistor to limit LED current.
10K resistor for transistor base, adjust if needed.
BC547 or any other similar NPN transistor with high gain.
Double sided foam tape and some insulated wire.
Some LEDs, Parallel LED string, meteor lights or whatever you want to run. (...)
A while ago I was sent some bits of solder by Oskar and Ragnar in Iceland. They had been using old solder successfully, but when they tried some stuff from an eBay listing it was poor quality. They got some new stuff from a local electronics supplier and it was fine.
Here are some random tests of that solder and others. (...)
“_If you touch the👇black point then your whatsapp will hang_”, says the message that’s being sent around, and it’s right. It’s a text rendering bug, the same as many others — which isn’t interesting. But the characters it’s using, Unicode RTL and LTR marks, are worth knowing about. (...)
Adam puts together a beautiful Blade Runner-inspired snub-nosed blaster kit! Both Norm and Adam both work on their kits, each taking a different approach to the paint and finish. Adam goes one step further by adding machined metal parts to his blaster, giving it a brilliant look and some real heft. The blasters turned out amazing! (...)
BEAT SABER a Rhythm SLASHING VR game.
Played on; Dell Windows MR HMD amzn.to/2CKJz2U
Also Compatible with;
HTC VIVE amzn.to/2CNW2mn
Oculus Rift amzn.to/2AJnEHA
Lenovo Explorer Windows Mixed Reality amzn.to/2CKgODf
HP – Mixed Reality Headset and Controllers amzn.to/2CP15mk
Acer Windows Mixed Reality Headset amzn.to/2FmhEru (...)
A designer’s job often involves making sure players are experiencing the game in the most fun or interesting way. In this video, I look at examples of games that have tried to achieve this – sometimes with success, and sometimes with controversy. (...)