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A blinking LED controlled gate using an photoresistor. Based on a design in Handmade Electronic Music by Nicolas Collins.
Logitech G430 is a top-notch choice for any gamer. With its comfortable design, high-quality audio, and reliable microphone, it is the perfect accessory for your gaming setup.
I used my computer’s USB plug as the ground connection, as it is a solid ground and it is right next to my work area. It looks like one wire is connected to the 5v line, but it’s not—they are both on the shield. Yup, more ugliness…
As you can see it's not that clever hardware wise, basically just five pots and a mess of wires. The control jack socket is wired to the pot's wiper so that you can adjust the level to suit, whatever you have plugged in - sensors, children etc.
The X maschine
The 2007 Alpine demo car is “eXperience”. The name represents the concept of Alpine´s expertise in iPod connectivity and most speedy transmission.
Featuring 6 PDX amplifiers, 2 Type-X subwoofers, 9 Type-X speakers, The PXA-H701 and the iDA-X001 (plus a lot more!), this high-end demo car showcases just how fantastic Alpine´s “Type X” products are.
One of the main highlights is the centre position for the driver, to enjoy the music at it´s best. The “eXperience” shows an elegant and sleekl designed demo car.
It took the Alpine installers 2 ½ months to create such an amazing demo car.
Old radio made of bakelite. A Philco Transitone from 1948.
Lava lamp still works. Radio would take some repair, but I bet it could work too.
Takoradi, Ghana, Africa
Papa Andoh mobile phones & home appliances
Microsoft Lumina
Orange "Make it Happen" T shirt.
Random camera PCB I've been thinking about recently... I got a lot of these cameras broken from ebay a while back - Have been planning to reuse the sensors (they're rather nice, ~8mp-ish I think), but need to do some detective / reverse engineering work. Not something I have time for in the very near future.
I have no idea if they work yet, but I am pleasantly surprised to have gotten two.
Ordered from batchpcb.com. Easy, cheap, and fast!
Almost ready to test.
Input is 50V p-p AC from a wall wart. Output is ±1–24VDC (trimmer adjusted) regulated by a standard LM317/LM337 circuit.
Pins underneath meet the pair of rails on a standard breadboard.
Both regulator circuits were tested on the breadboard first, so I'm just looking for soldering and wiring errors. And I need to add the 2 x Cadj capacitors and one diode to feed the negative smoothing capacitor.
The Adafruit protoboard is only just big enough…
Photos from my rebuild of the Stealth USB Capslocker, using a laser resist etching process. Full writeup available here: macetech.com/blog/node/81
This Kmart opened Halloween 1994 as a Super Kmart then in 2010 the deli, meat, and bakery sections were removed and became a normal Kmart
>>>>>>>>>> click the "ALL SIZES" magnifying glass to see a bigger pic <<<<<<<<<
PARTS
• 2 or 3 12-position rotary switches (or 10-position, whatever you can get)
• 2 pin or banana jacks (to match your test leads)
• resistor assortment from 5 ohms to 1M or greater; gold bands (5% tolerance) are better than silver bands (10% tolerance).
• project box
INSTRUCTIONS
1- Get a box and drill holes for mounting two or three 12-position rotary switches. Drill holes also for the two jacks.
2- Mount the switches and the jacks; label switch positions with corresponding resistor values.
3- Follow this diagram and solder resistors directly to the lugs of the rotary switches.
NOTE: If you solder the resistors so their unsoldered leads extend the opposite direction of the switch's shaft, these leads can be gathered together and soldered at once, connected to the bus wire terminating in point "A".
• The first switch would provide the lowest resistance, the next would provide mid-range resistors, and the final switch would be wired to the resistors with the greatest resistance.
• As seen, the 12th lug of the depicted switch connects to the next switch in the array. Naturally, the final switch in the array would have its 12th lug connected to the final resistor in the matrix.
PANEL
To mark the panel for the resistor values:
1- Turn the mounted switches to position "1" (doesn't matter at all how you orient the switches, just turn them to their lowest resistor settings).
2- Place knobs loosely on shafts and turn their pointers to wherever you want "1" (your lowest resistor value) to be located around the dial (near top or bottom of dial, usually).
3- Once all pointers are angled to this position, tighten their set screws to keep them in place.
4- With your marker, put dots where the pointers point as you click them all around their orbits.
5- Label these dots with the corresponding resistor values. Position "12" can be marked with an arrow pointing to the next switch.
USAGE
1- Set all rotary switches to "12" for starting position. This will provide the greatest resistance available (this is safest on the circuit). Plug your test leads in.
2- Begin turning the LAST dial downward and observe the response of the circuit (LED brightness, audio output, circuit clocking - whatever you're after).
3- When you get to position "1" on this switch, turn the next rotary switch to position "11" to continue the resistance decrease, and so on until you reach the resistance value desired.
4- Observe the resistance the dial is pointing to; grab another resistor of the same value, and your green LED will never again scare you with that ember-like, off-yellow, over-voltage, "Seeya in LED Halvala" glow.
A pair of cufflinks made out of some spare ICs. They were suprisingly quick and easy to make.
Instructions on Photo 1.
My solder joints are looking a lot better now that I have a good soldering iron (Weller 25W) and smaller solder (0.32mm versus 1mm).
Taken on macro mode, under natural and green light, and then monkeyed with in software. A selection of Amperex 7534, 6DJ8 / ECC88 and 12AX7, Telefunken and Amperex EL86 / 6CW5, and General Electric 6CX8. Most are OEM branded by Hewlett-Packard.
No, this is not the Google Earth view of some city. It is a macro of a silicon wafer containing VLSI circuits. Each of those blocks is about a centimetre on each side and contains numerous transistors.
Thanks a lot to my friend in our university's VLSI lab for allowing me to take this photo.
The Universe Tapping You On The Shoulder.
Day 60/365
Please Read!
So today's photo is more than meets the eye. You may think that I have just gotten lazy and I didn't want to take a photo today, but let me tell you a little story.
Have your ever heard the expression 11:11- Make a Wish?
Well I have. I remember tons of girls obsessing over it and writing it down everywhere. Has It ever occured to you what it really means though? I had a sudden urge to find out where this 11:11 phenomenon actually came from.
I spent about 20 minutes researching it and I'm quite impressed.
11:11 is a myth you could say. People think it's a special number and when you see the numbers 1111 and you are granted a wish. Some people have said that they see it everywhere and it started to actually believe the worlds trying to tell them something. Someone even said "It's the Universe tapping you on the shoulder." I kinda liked that. I guess it could be a sign of hope. 11:11 can make you believe that if you want something so bad, something that you will wish for... maybe you will get it. So don't lose hope in something so quick. You might need to work for it.
Also, for anyone who knows about what is supposively going to happen 2012.
The Mayans who were incredibly advanced, ancient Mexican civilization with extraordinary skills in astronomy and math. Their 26,000 year old calender offcially ends on December 21, 2012. And Guess what time? 11:11. What a coincidence.
This date marks a re-birth of our world according to the Mayans.
Anyways, I thought this was a pretty cool discovery. And I'm sure there is much more to learn about 11:11, but for now, a 20 minute research was good enough for me.
Keep Wishing.
If anyone knows anything more about 11:11, feel free to share it with me. I'd love to learn a little more.
3.2.10