Yes that is something to consider while using this technique. For example, if you use a 9 volt battery, as I did in this instructable, and decide to use a 500 ohm potentiometer instead, the LED will most likely experience minimal change in brightness because there would still be quite a bit of current still reaching it regardless. A 10k ohm potentiometer was the only one I had available at the moment of writing this instructable and, for me, is my go to potentiometer value.
GitPi: A Private Git Server on Raspberry Pi
The Ultimate FM Transmitter (Long Range Spybug)
Glow in the Dark LED Ping Pong Ball
The Ultimate USB Backup Pack
Solar powered arduino on the back of a playing card
RC Nerf Tank
DIY Customized Circuit Board (PCB Making)
Build a Simple Circuit from a Pizza Box (No Soldering)
Let's learn about Super Capacitors! (A Practical Guide To Super Capacitors)
DIY iPhone Chargers
How to make a solar iPod/iPhone charger -aka MightyMintyBoost
Lithium Battery Solar USB/ iPhone/ Arduino Charger
Raspberry Pi PirateBox
DIY EEG (and ECG) Circuit
DIY Microbial Fuel Cell! EASY!
Grow Your Own Bioluminescent Algae
5 minute DNA Extraction in a Shot Glass
Solar Powered Raspberry Pi
How to make a RC Hovercraft
How To Beat The 2048 Game
Build an Arduino
Folding Knife with Aluminium Handle
Strawberry Cheesecake Frozen Pops!
Portable Solar Generator on a bike trailer for Burning Man
ARDUINO SOLAR CHARGE CONTROLLER (Version-1)
DIY OFF GRID SOLAR SYSTEM
DIY bike tachometer
Homemade Ice Cream
Homemade Ice Cream: Quick, Easy, & On the Cheap!
Ice Cream Recipes
Mango Kulfi Ice Cream without a Popsicle Mold
Mini LED Volume Towers (VU meters)
Make Your Own Model Rocket!
Plastic Bottle Mosquito Trap
Make a Live USB to boot from a USB drive
Ikea 'Solvinden' - Solar USB Power Supply
Send a camera to Space
Homemade Ice Slush
How To Make A Milkshake
Top 5: Awesome Bar Bets You'll Always Win (Probably)
Dual USB/Firewire 400 Power Bank
How To Make Hot Pockets (Homemade)
All in One Portable Solar Power Unit: 220V + 12V + 5V + Automatic Battery Charge! ;)
3D Printed Face Goblet!
Pure Honey Taffy
Diffused Glue Stick Lamp
Make Rheopectic slime in less than 15 minutes! (It is not Oobleck)
How to PlastiDip Your Car's Rims Matte Black Without Tire Removal!
Make Silver-Colored Pennies!
Turn an Orange into a Candle!
WIRELESS SPEAKER USING LASER
DIY Glowing Mini Jar
RoomAlert- Intrusion Protection
Build your own Mini Arcade Cabinet with Raspberry Pi
Home Automation with Raspberry Pi & Arduino
Program your Arduino with an Android device!
How to design and build a go kart.
Bubbling Pipe Lamp
Mystery Beeping Prank
How To: Soldering
Bluetooth Speakers using Raspberry Pi
Turn your Raspberry Pi into a Wireless Portable Bluetooth Audio System A2DP
Raspberry Pi: Minecraft Server
Web Designing Basics (HTML and CSS)
The Nova—A DIY Oculus Rift!
Make a Portable Computer Using a Raspberry Pi
Mjolnir - The Portable Media Computer
Smart mint the solar phone charger
Homemade liquid nitrogen generator
Raspberry Pi as Hi-Fi player with RuneAudio
Hack an old iPod using an Android and an Arduino.
Pandora's Box - An Internet Radio player made with a Raspberry Pi!
Homebrew Arduino Pulse Monitor (Visualize Your Heartbeat)
Is the best PCB etchant in every kitchen ?
Raspberry Pi - PiFMPlay - FM-Broadcasting Simplified
Portable Raspberry Pi (Retropie Handheld) Build Guide Part 1
Microbial Fuel Cells - A Way to Generate Clean Electricity from Waste Water
Fakola (cola clone)
Build Your Own Batteries!
Home Carbonation System...Cheap, Healthy, and Green.
Wireless Raspberry Pi Radio: Pianobar
Raspberry Pi Radio Transmitter
FerretPi: Using Raspberry Pi as a Secure FTP Server
Ultimate Raspberry Pi Home Server
Simple and intuitive web interface for your Raspberry Pi
High Quality (and Safe) Copper Plating
Solar USB Charger 2.0
Raspberry Pi Wall Mounted Google Calendar
Make A Cheap Lithium Battery Pack
Assembling a Desktop Computer
Web Controlled 8-Channel Powerstrip