- Fits comfortably into a pocket.
- It is built of SMT components on a IC socket platform.
- It can drive different color and size LEDs.
- It does Suck a Battery almost completely Dry
- It will be used to test different brands of AA battery capacity.
- Yes, it can be used as a Continuity Tester
Sorry, but this project requires advanced soldering skill to build !
Step 1: Assembled Thief
- Easy to hold
- Pointing toward the iCamera
- Aim a narrow beam 10' across the room to see the LCD weather station
- Close up of LCD station illuminated by a single LED from 10' across the room
- LED lightning a tall Victorian ceiling
- Detailed component descriptors
Step 2: COMPONENT PARTS
- Small perforated fiberglass board about 1½" by 3½"
- AA Battery clip-set and one AA battery
- A 10mm clear orange LED 36 cdp
- A Wire-Wrap Socket and a 16 pin solder Platform
- Two Slide Switches ( You can skip one, if you don't intend to measure current )
- Two electrolytic capacitors 100 uF 6.3 V and 100 uF 10 V.
- Make a 22 mH inductor from the [73K] by unwinding turns & measuring until 22 mH
- A maxim MAX1675 High-Eff-Step-Up-Converter
- An MBRD520 SMT schottky diode
- Two 1206 SMT 470K and a 220K chip resistors
- Two 0.1 uF SMT capacitors
- A 100 ohm 1 watt resistor
- LED socket made from a dual in line 24 pin receptacle
- Plastic Polaroid Old fixer wipe holder tube
Equipment you need
- Low end meter that can measure Inductance
- If things go wrong, an oscilloscope will be handy
- A band saw or hack saw
- A box cutter knife
- A small drill
- A small Hot-Glue gun
Information you meed
- MAX1675 PDF ( provided ) useful if things go wrong
- # 28 gauge Bare wire and low tin lead temperature solder
- Teflon or any insulating tubing
- # 24 gauge Bare wire to slid into tubing
- # 22 gauge Bare wire