What is the physics behind L.E.D. Lights?
ED LampAmorphous silicon cells, generated on a layer of film 1.5 µ thick and sandwiched between plate glass, have been installed in huge arrays. A California complex, built in 1992, covers five acres and generates 500 kW at a cost of about $0.25 per kilowatt hour. Thin-film cells are half as efficient as crystalline cells, but they cost considerably less to produce. New production methods may increase conversion efficiency to crystal-cell levels.
60W 12V Solar Panel
Solar Cells not bad prices
Above Ground Solar Panels $109.95
Solar Heating System 4'=190
USB to UART Bridge - FT232RL$3.95
K2644 FROST INDICATOR
K2655 ELECTRONIC WATCHDOG
Box Of 24 .45V
Polycrystalline Solar Cell $24.95
C programming $10
Printed Circuit Board Supplies
Injectorall Ack Supply Electronix Express
Making excellent printed circuit boards
Polycyclic resist with increased etch resistance
# 22-074 (Pos. Etch Sensitizing Spray) NLA No Longer Available
PCB
& Veroboard Design
Everything
PCB The name says it all
FinishLine
PDS This company does PCB Layout,
more.
Express
PCB A link to their PCB drafting
program.
PCB123
This site contains a free PCB program
from which the output may be emailed
and built directly.
PCB
ExpressProvides prototype circuit
board manufacturers, PCB prototype
stencils, Printed Circuit
PCB
Prototype
diyAudio Forums Archive - Etching PCB:s
This pen is filled with a lacquer ink that is impervious to aqueos PC etch solutions
http://www.myropcb.com/index.html
THE BEST PCB-LAYOUT SOFTWARE I'VE EVER USED!
diyAudio Forums Archive - Etching PCB:s
cheapest- Gold Phoenix - need Gerber files
http://research.techkwondo.com/?p=337
Making hobbyist PCBs,professional CAD tools
press-n-peel,InkJet,PCB Etch,Etch PCB
RP Electronics (Canadia)
I print the file onto mylar film, then expose the boards under a darkroom negative viewer for 7 minutes, develop in dilute sodium hydroxide solution, wash in running water, etch with a combination of hydrogen peroxide and hydrochloric acid -- for the H2O2 I use the inexpensive pharmaceutical brand which is $0.39/qt -- straight, no dilution and for the HCl I use muriatic acid from the hardware store. just a few ml's of HCl "promote" the reaction.
Circuit Specialists GreenTRF Toner $6.95 WhiteTRF Toner Reactive Foil
10 Toner Transfer Paper (PCB-TTP) $14
UV Fluorescent PCB Exposure System $30
cad boards
Tinnit Tin Plate 1 pint $6.50
A good rule of thumb to use, is to select a film that is at least twice as thick as the copper being covered. In more practical terms, if you are covering 1ounce (35 micron) copperclad, you should use a film that is at least twice as thick as the 0.0013" thick copper layer. For this application, a 3 mil (0.003") film would be preferred. Failure to follow this simple rule might result in thin, capillary gaps along the edges of pads and traces. These gaps are just about the perfect size to wick, and retain the corrosive fluxes used during wave and/or hand soldering, which could lead to the eventual failure of the board
chemical makeup
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$2.49
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$19.99
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$9.99
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$1.99
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DZ2, BAT42 diode. Align such that the band on the diode is aligned with the silkscreen on the PCB.
R1, 22K resistor, (red, red, orange), 1/8W.
R2, 10K resistor. (brown, black, orange), 1/8W.R3, 330 resistor, (orange, orange, brown), 1/8W.
R4, 220 resistor, (red, red, brown), 1/4 W. Alternatively this may be 180 Ohm.
U2, 8-term socket. Align notch on the end of the socket with the silkscreen.R5/P0, 2-terminal connector. Connect the shorting block as shown in the photo.
Placing this requires alignment of all terminals with the holes on the PCB. Check to be sure none of the terminals are bent. Place and gently turn back and forth, while exerting minimal pressure until the connector drops into place.
C1, C2, C3, 0.01 uFd ceraminc capcitors.U1, 78L05, Voltage regulator. Align flat on the 78L05 with the silkscreen.
PWR, LED. Align flat on the LED with the silkscreen.
C4, 100 uFd, electrolytic capacitor. Align such that the minus on the cap is nearest the "C4" lable on the silkscreen.
C5, 250 uFd, electrolytic capacitor. Align the minus on the cap with the "-" on the silkscreen.
Break away 40-pin machine pin header female
Net cost
| 4 | .01UF | Ceramic disc cap .01UF 50V .2LS | $.05 |
| 4 | 1UF | Ceramic disc cap .1UF 50V .2LS | $.07 |
| 1 | Radial electrolytic cap 220UF 35V | $.12 |
| 1 | Radial electrolytic cap 100UF 16V | $.06 |
1 10K Ohm 1/8 Watt Resistor 10 cents
1 22K Ohm 1/8 Watt Resistor 10 cents
1 180 Ohm 1/8 Watt Resistor 10 cents
| 1 | 1N5400 | DIODE 50PIV RECT.(1N5401/501) 1n4004 | $.10 |
| DIODE 5.1PIV ZENER should be 1N751A)1N5818, Jameco 177957 or bat42 diode | $.06
|
| 7805T | +5V 1A regulator, T0220 (LM340T-5) | $.29 |
| 78L05 | POSITIVE 5 VOLT REGULATOR LP TO-92 | $.17 |
1 power switch xxxxxxxxxxxxxxx $1
1 F 2 pin connectors 10 cents
1 3 pin header 5 cents
9v batt wire 25 cents
5 volt led 25 cents
1 socket 10 cents
1 14 pin picaxe $3
| ULN2003A | DARL.TRANS. ARRAY 16DIP | $.39 |
| ULN2803A | DARLINGTON TRANS. ARRAY 18P (TTL) | $.59 |
serial connector 50 cents
1 mother board $5
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Servo controller
CAUTION: All LEDs require current limiting. Click here to calculate the correct resistor value for your application.
Photo Etch Circuit Board Process
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1) What you need (page 2) |
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2) Expose (page 3) |
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3) Develop (page 4) |
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4) Etch (page 5) |
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5) Remove Resist (page 6) |
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4) Cut out panels (page 7) |
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4) Drill (page 8 ) |
Photo Etch Circuit Board Process
Top 5 Coil Guns
Hacked Coke Machines
Top 5 Bad Tech Products
What to do with Blue Balls
Home-Built Robotic Sentry Gun
Hack the LG LAC-M6500R MP3 Car Stereo USB port
A look inside various integrated circuits
Skull Bike
- Electronic Circuits
- Schematic Symbol Reference
- How To Solder
- How To Desolder
- Building Tips
- Electronics Calculators
- How To Program The Parallel Port In QBasic
- How To Program The Parallel Port In Visual Basic
- Electronics Software
6V to 12V Converter, Portable CD Player Adapter For Car, Car Battery Charger, Automatic 12V Lead Acid Battery Charger, Solid State Tesla Coil/High Voltage Generator, 12VDC To 120VAC Inverter, LASER Power Supply, Power Supply, High Current Power Supply, Dual Polarity Power Supply, High Voltage High Current Power Supply, Transformerless Power Supply, Fixed Voltage Power Supply, Voltage Inverter, Voltage Inverter II
Air Flow Detector, Wire Loop Alarm, Simple Two Speed Contactor DC Motor Controller ,
7 Segment LED Counter, Simple Lie Detector, Low Voltage Alarm, Video Stabilizer/MacroVision Removal, Pulse Width Modulation DC Motor Control, Simple Polarity Tester, Pine Racecar Victory Judge, Rain Detector, Time Delay Relay, Time Delay Relay II, Stepper Motor Controller, Touch Switch, Video Activated Relay
Channel Spectrum Analyzer, 40W Fluorescent Lamp Inverter, Fantastic Atom Expander, Black Light, LED Chaser, Simple Colour Organ, TRIAC Light Dimmer, 12VDC Fluorescent Lamp Driver, Infa-Red Remote Control, IR Remote Jammer, LASER Transmitter/Receiver, Light/Dark Detector, Colour (Sound) Organ, Flash Slave Trigger, Strobe Light, Adjustable Strobe Light
Build a Remote Control Deadbolt
Alarm clock/countdown timer kit
Arduino temperature controlled PC Fan
HOW TO - Hide a hard drive in a UPS
Cooking up a cheap digital o-scope
1/4W Carbon Film 5 cent 70
610 peice set site to buy $8.95
2.1mm(I.D.)
Center Pin
Coaxial Power Jack
PC Mount $0.60
3mm GREEN LED Pack of 100 $1.95
USB Powered Miniature Christmas Tree w/Multicolor LEDs - $1.90
LED Light from globelresorces
RFDI - 125 Khz
13mm by 3mm diameter 2.70
12mm x 2mm 4.95
Wristband Watch Style $2.54
solar Cells
LED Tri-Colour 5mm.Lot of 10...3 leg
TRI COLOR 6000MCD RGB 4 LEGS 5MM LED X 20pcs $15
30pcs Block Terminal Terminals Connectors, 10A, 300V(G)
single row square 50x male / 25x female pin headers cheap
all about other ideas on the picaxe
Picaxe fourm
Picaxe idea 1-Hour $15 Hobby Microcontroller How-To
PICAXE 14 Pin Microcontroller $3.95
usb / serial Adapter Free Ship $9.95
USB Multi-LinQ PC-to-PC File Transfer Cable Price $9.95 (Free Shipping)
 CBU-BRIDGE |
6ft USB 2.0 Data Transfer Bridge Cable A/M to A/M $12.99 |
ACS1024
3.5MM Mono Jack With Hardware
Your Price $0.19
Your
Price $0.36
Your Price $8.95
USB 2.0 7-port Hub, $14.99
1GB USB 2.0 Flash Disk Drive $11.98
4 gig - $33.95
mini keyboard $14.95
VTSS5U - Low-Cost Soldering Station$15
TRIAC 600PIV 12A TO-220 $1.49
SIP -Common Terminal (9 Resistors
Navigation With CDS Photocells & Infrared
.232 inches = 5.8928 millimeters More about calculator
5 MM RED/GREEN LED's 3 Lead Package of 10 $2.00 usa
5mm Multi-Color LED Red = 2V, Green = 3.5V, Blue = 3.5V
10 Segment Bargraph Display - Red (DC10EWA) $1.98
Multicolor HP Bargraph Display
Liteon LTA 1000G Green 10 Bar Display$0.99
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$14.95 |
Half-size
breadboard $5 |
MiniBreadboard, top quality, standard .100" spacing, 17 rows of 5 hole and 5 holes, 170 total contact points, size is 1.8" L by 1.35" W, peel off adhesive on base.
Tiny
breadboard $7.50 |
40 pin female headers - 40FH - $.75
3.5mm PCB Stereo Mount Jack (Pkg of 5) $1.00
Replacement Power Jack (Pkg of 4)
Fused Cigarette Plug Assemly$.99
Cigarette Lighter Power Board (Pkg of 2)
USB A FEMALE .34
SOIC to DIP Adapter 8-Pin $2.95 sparkfun
FT232RL USB to Serial $14.95
| 5 oz Heat Sink Compound |
$12.88
|
LYB3240 PC mount 3 a relay 16ma
Machine Tooled Low Profile IC Sockets
6 Terminal MiniatuQuick Connect Block $1
ACS1525
4-Way Distribution Amp
Your Price $9.95
Components (22)
Good prices & pcb supplys Negative Photo Resist - ER-71
5.5" x 12" Scissor Cut SS Copper Clad$1.75
3" x 4" Copper Clad .021 Thick"$0.39
| CCB-503 | Copper Clad Board, 1 Side 3x5 Plain 1/16inch | $3.88 |
| CCB-586 | Copper Clad Board, 1 Side 4X6 Plain 1/32inch | $3.88 |
| CCB-509 | Copper Clad Board, 1 side 6x6 Plain 1/16inch | $4.88 |
| CCB-587 | Copper Clad Board, 2-sided 4X6 Plain 1/32inch | $4.88 |
| CCB-588 | Copper Clad Board, 1 Side 6X9 Plain 1/32inch | $6.88 |
| CCB-589 | Copper Clad Board, 2-sided 6X9 Plain 1/32inch | $6.88 |
| PCB-690 | CCB, 2 SIDED 6X9 PRESENSITIZED 1/32 IN. | $14.88 |
| PCB-606 | 1 Side 4"x6" Pre-sensitized PCB | $8.28 |
Make a surface mount soldering iron
Your Price $1.95
Your Price $8.95
AUDCA089
6P BLACK MINI DIN PLUG
Your Price $0.93
Dropper resistor for a LED:
Red 25mA 130 ohms
orange 25mA 120 ohms
Grn 25mA 100 ohms
PWR1200
2.1mm Power receptacle
Your Price $0.33
AUDCA002
2.5mm BLACK PLASTIC STEREO PLUG
Your Price $0.42
AUD1107
2.5mm Stereo Jack to 3.5mm Stereo plug
Your Price $0.74
 ADA-PS2U |
USB
Adapter, PS/2 port to USB A/F, for USB Mice only $0.69 |
