# Personal Torch 3000
## Tools and Materials
Do you have a flashlight for when the power goes out? Or... something to help little ones get around during Halloween?
I guess you could always go to the store... Nah, let's make one instead!
The following items are what the guide uses to construct the PT3000... there is a lot of room for substitution and creativity.
- Super Glue (plastic-to-plastic)
- E6000 (plastic-to-PCB)
- Semi-transparent filament
- Soldering iron and solder
- Wire stripper / flush-cutters
- 3x 3mm LEDs
- 1x appropriate value resistor
- 1x 9v battery clip
- 1x 9v battery
# Personal Torch 3000
## Datasheet... to prototype
Grab the datasheet for your LEDs and open Circuit Playground... find the values for 'Forward Voltage' and 'Forward Current.'
Plug-em' in, and voila!
It looks like the LEDs I selected require a 1/8 watt 180 Ohm resistor to prevent the battery from over-driving the LEDs and burning them out.
There can be a little variance in the resistor value... +/- 10% shouldn't be a problem.
Just remeber to enter 3x for the Series LED Count!
You can even free-wire the circuit if you want... my prototype may be ugly, but it works a treat!
I sealed the prototype in epoxy to prevent the connectors from wiggling around. Some of the epoxy ran through the holes in the clip... next time I'll plug those with a bit of hot-glue.
# Personal Torch 3000
## PCB Production
If you think producing PCBs is difficult... this project might change your mind.
It's true, years ago, you had to produce hundreds or even thousands of PCBs before a fab-house would want to talk to you. Now, fast-turn / low quantity services abound.
And... there are services like [OSH Park](https://oshpark.com/) that are crazy awesome.
These little purple boards cost a couple bucks for three... and will arrive in about 10 calendar days. A couple clicks, and your PCBs will be on the way!
[OSH Park Shared Project: PT3000](https://oshpark.com/shared_projects/dg8ucuXl)
# Personal Torch 3000
## Soldering
You can retrofit this design easily with just about any kind of 9 volt battery clip... I've used one that has a beefy plastic housing for glue to stick to.
[9 volt battery clip](http://www.digikey.com/short/7tvn48) (link to Digikey)
Trim the leads down to about 3/4 of an inch...
Strip and tin the ends.
Solder to the PCB... positive is marked with a + on the opposite side.
Now... I'm going to cheat a little bit - I orderd 1/10 watt 0603 resistors instead of 1/8 watt 1206.
Precision is great though...
You can pick any resistor you want from about 180 ohms to 1000 ohms, the brightness will vary but so will the battery life!
0603 is small...
0402 and 0201 are even smaller - yikes!
It's a bit of a stretch, but it looks like it will work just fine.
The torch has been running for about a day with the 1/10 watt resistor in place... seems to be okay.
Still, I'd recommend using the value recommended in Circuit Playground.
LEDs have polarity... which is marked on the board with the white silkscreen and on the LED via a flattened side.
Match-em' up and solder in-place.
Trim your leads down a bit and... let's assemble!
# Personal Torch 3000
## Assembly
Knock-down the rough spots with a bit of sandpaper...
Oh!
Here's a little trick with Super Glue - don't blow or rub-off the plastic dust. When you add Super Glue, and press the two dusty parts together it helps fill gaps and improves adhesion.
Load-up the sides of the battery connector with glue... and quickly press it into place.
Make sure that the battery connector is flush with the bottom of the torch base. Else, the clip might have a tendancy to pop-off.
Make everything permanent by adding a little E6000 to the top of the battery connector and around the sides.
Good coverage will partially seal the connector from moisture...
Press the PCB into place.
And, add the base cap - it acts as a spacer to prevent the battery terminals from coming onto contact with the LEDS.
Put a smidge of E6000 on the sides of the container to hold the diffuser in place.
Make sure that the end with the rounded lip is left open - this is the end that the diffuser cap snaps-into.
The battery will fit inside either way... snazzy!
When you're ready to use it, take the battery out and snap it into the base.
Given the capacity of most 9 volt alkaline batteries, I would expect this to light-the-way for several dozen hours.
## Featured Products
### CadSoft EAGLE Maker - PCB Design Software
[CadSoft EAGLE Maker - PCB Design Software](https://www.adafruit.com/product/1615)
**This is the Maker version of Eagle CAD - a non-commercial license specifically designed for Makers!**
All Adafruit products are designed with CadSoft EAGLE PCB Design Software, Ladyada has made hundreds of designs with EAGLE! We are pleased to now offer licenses to our...
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1615)
[Related Guides to the Product](https://learn.adafruit.com/products/1615/guides)
### CadSoft EAGLE - Skill badge, iron-on patch
[CadSoft EAGLE - Skill badge, iron-on patch](https://www.adafruit.com/product/566)
You are learning CadSoft EAGLE and designing PCBs! Adafruit offers a fun and exciting "badges" of achievement for electronics, science and engineering. We believe everyone should be able to be rewarded for learning a useful skill, a badge is just one of the many ways to show and...
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/566)
[Related Guides to the Product](https://learn.adafruit.com/products/566/guides)
### Digital Genuine Hakko FX888DX-010SV (936 upgrade)
[Digital Genuine Hakko FX888DX-010SV (936 upgrade)](https://www.adafruit.com/product/1204)
Known by engineers for making excellent quality tools & soldering irons! This is a genuine Hakko FX-888D with **digital temperature control**! We worked hard to get the best and a great price, these are **not** knock-offs. This iron is an upgrade to the...
No Longer Stocked
[Buy Now](https://www.adafruit.com/product/1204)
[Related Guides to the Product](https://learn.adafruit.com/products/1204/guides)
### Adafruit PCB Ruler v2 - 6"
[Adafruit PCB Ruler v2 - 6"](https://www.adafruit.com/product/1554)
The first time you soldered up a surface mount component you may have been surprised "these are _really small_ parts!" and there's dozens of different names too! QFN, TDFN, SOIC, SOP, J-Lead, what do they mean and how can you tell how big they are? Now you can have a...
In Stock
[Buy Now](https://www.adafruit.com/product/1554)
[Related Guides to the Product](https://learn.adafruit.com/products/1554/guides)
### Hakko Professional Quality 20-30 AWG Wire Strippers
[Hakko Professional Quality 20-30 AWG Wire Strippers](https://www.adafruit.com/product/527)
These are the finest wire strippers we have used, and if you have to do a lot of wiring, you will agree! They have soft rounded grips - very comfortable to use, and precision ground notches that do a perfect job every time. No more yanking or twisting to strip wires cleanly and quickly.
Out of Stock
[Buy Now](https://www.adafruit.com/product/527)
[Related Guides to the Product](https://learn.adafruit.com/products/527/guides)
### Flush diagonal cutters
[Flush diagonal cutters](https://www.adafruit.com/product/152)
These are the best diagonal cutters, large super-comfortable grip to use and have strong nippers for perfect trimming of wires and leads. I've used my pair every day for years.
In Stock
[Buy Now](https://www.adafruit.com/product/152)
[Related Guides to the Product](https://learn.adafruit.com/products/152/guides)
### Diffused White 3mm LED (25 pack)
[Diffused White 3mm LED (25 pack)](https://www.adafruit.com/product/778)
Need some indicators? We are big fans of these diffused white LEDs, as featured in the LoL shield. They are really bright so they can be seen in daytime, and from any angle. They go easily into a breadboard and will add that extra zing to your project.
- Pack of 25 diffused white...
In Stock
[Buy Now](https://www.adafruit.com/product/778)
[Related Guides to the Product](https://learn.adafruit.com/products/778/guides)
### 9V battery clip with 5.5mm/2.1mm plug
[9V battery clip with 5.5mm/2.1mm plug](https://www.adafruit.com/product/80)
I found these high-quality battery clips. They're molded plastic so they won't tear like cheap clips, and they cover the battery terminals to prevent shorts.
Comes with a 5.5mm/2.1mm center-positive barrel connector, assembled!
Battery not included.
In Stock
[Buy Now](https://www.adafruit.com/product/80)
[Related Guides to the Product](https://learn.adafruit.com/products/80/guides)
## Related Guides
- [Wires and Connections](https://learn.adafruit.com/wires-and-connections.md)
- [Circuit Playground - P is for PCB](https://learn.adafruit.com/circuit-playground-p-is-for-pcb.md)
- [Machine Learning with Marshmallows and Tiny Sorter](https://learn.adafruit.com/machine-learning-with-marshmallows-and-tiny-sorter.md)
- [Learning with LEDs](https://learn.adafruit.com/learning-with-leds.md)
- [Making Adabot: Part 1](https://learn.adafruit.com/making-adabot-part-1.md)
- [PyPortal Trivia Time with the Open Trivia Database](https://learn.adafruit.com/pyportal-trivia-time-open-trivia-database.md)
- [Adafruit IO Home: Security ](https://learn.adafruit.com/adafruit-io-home-security.md)
- [Taz 4 1.75 filament upgrade](https://learn.adafruit.com/taz-4-1-dot-75-filament-upgrade.md)
- [LEGO Set Lighting](https://learn.adafruit.com/lego-set-lighting.md)
- [nOOds LED CV Signal Visualizers](https://learn.adafruit.com/noods-led-synth-cv-visualizers.md)
- [Han Solo Blaster Cosplay](https://learn.adafruit.com/han-solo-blaster-cosplay.md)
- [DIY DC/DC Boost Calculator](https://learn.adafruit.com/diy-boost-calc.md)
- [Adafruit Neo Trinkey](https://learn.adafruit.com/adafruit-neo-trinkey.md)
- [Blahaj Alarm and Lamp](https://learn.adafruit.com/blahaj-alarm.md)
- [Plotting Offline Data - JSONL to CSV files, filters and graphs](https://learn.adafruit.com/plotting-offline-data-jsonl-to-csv-files-filters-and-graphs.md)