Oh say can you see By the knob's early light... Sorry - we thought that was clever.  And while it wasn't really, this potentiometer knob definitely is.  It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers.  The knob is designed to set directly on the potentiometer's ridges so it's an easy & secure fit. It has a nice...

Oh say can you see By the knob's early light... Sorry - we thought that was clever.  And while it wasn't really, this potentiometer knob definitely is.  It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers.  The knob is designed to set directly on the potentiometer's ridges so it's an easy & secure fit. It has a nice...

Oh say can you see By the knob's early light... Sorry - we thought that was clever.  And while it wasn't really, this potentiometer knob definitely is.  It's a 'soft touch' T18 knob that works great with our Panel Mount 10K, Panel Mount 1K, and Panel Mount 100K potentiometers.  The knob is designed to set directly on the potentiometer's ridges so it's an easy & secure fit. It has a nice...

Oh say can you see By the knob's early light... Sorry - we thought that was clever.  And while it wasn't really, this potentiometer definitely is! We've seen these in miniature synthesizers. They're bigger than a trim-pot, but smaller than a chunky potentiometer. Best of all no knob required! These have a knurled plastic grip with a white stripe marking. Use it as-is, for a low cost adjustment Comes as a standard 10K ohm...

Slip slidin' away  Slip slidin' away  You know the nearer your resistance  The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are not too long at only 75mm. Use as a voltage divider and you can visually gauge the voltage from...

Slip slidin' away  Slip slidin' away  You know the nearer your resistance  The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are so cute and short at only 35mm. Use as a voltage divider, and you can visually gauge the voltage...

Slip slidin' away  Slip slidin' away  You know the nearer your resistance  The more you're slip slidin' away If you're tired of the regular-old-twisty potentiometers we carry, why not slide over and try this slide pot? Most famously used on mixers and the transporter control panel on Star Trek, these slide pots are not too long at only 45mm. Use as a voltage divider and you can visually gauge the voltage from...

This slim and modern potentiometer is small and compact, yet looks good and has a nice feel. We hand selected the best knobs for your project in different sizes and varieties.  This one is the Slim Metal Knob 10mm diameter x 10mm Tall (T18 Splines). It's a brushed aluminum knob with a shiny black (anodized?) coating.  It kind of looks like the type of knob you'd find in a very fancy, modern kitchen.  There's a...

This slim and modern potentiometer is small and compact, yet looks good and has a nice feel. We hand selected the best knobs for your project in different sizes and varieties.  This one is the Slim Metal Knob 10mm diameter x 15mm Tall (T18 Splines). It's a brushed aluminum knob with a shiny black (anodized?) coating.  It kind of looks like the type of knob you'd find in a very fancy, modern kitchen.  There's a...

These are our favorite trim pots, perfect for breadboarding and prototyping. They have a long grippy adjustment knob and with 0.1" spacing, they plug into breadboards or perfboards with ease. This is the same pot that comes with our character LCDs and tutorial packs.

This is really the fanciest, best feeling knob we've ever seen. Using this knob sort of reminded us of driving along the Amalfi coast in a perfectly restored '65 Porsche - meaning we really, really liked it.  We hand selected the best knobs for your project in different sizes and varieties.  This one's the Solid Machined Metal Knob - 1" . It has a nice, weighted feel that spins easily and doesn't...

Here's a new addition to our rotary-potentiometer-knob family. This knob has a nice soft-touch feel with an arrow on it, and its much 'slimmer' than the skirted knob we have been using, so good for compact layouts. Note: This is just the knob. We have a breadboard-friendly rotary encoder here. Rotary encoders are useful as rotation sensors or selectors and look similar to potentiometers. However, they are not like potentiometers...

This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a log taper 10K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a breadboard or perfboard. Once you're done prototyping, you can drill a hole into your project box and mount the potentiometer...

This potentiometer is a two-in-one: it's a log taper 10K ohm potentiometer , with a grippy shaft an d it comes with an on-off switch . It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart with pin-points, so you can plug it into a perfboard. Note the spacing on the switch/pot pins is 0.2" so it wont work in a solderless breadboard as nicely, unless you...

If you're a person like me that gets exhausted turning knobs all day, the DS3502 is just the ticket to calm all your knob-turning related troubles. Instead of having to  turn knobs  with your HANDS like an ANIMAL,  the DS3502 I2C Digital Potentiometer allows you to let your microcontroller adjust the resistance for you! Now you can free your hands to spin your fidget spinner or eat a slice of pizza while you're on the...

Potentiometers are the perfect tool when you want to change your circuit by turning a knob. Turns out, there are times when you want to adjust your circuit without manually turning a knob, and the  DS1841 I2C Logarithmic Resistor from Maxim  can do just that. It's a programmable resistor, similar to an I2C potentiometer like the  DS3502 I2C Potentiometer , so why another? The big difference between the two is how the...

This Panel Mount 10K Dual Linear Potentiometer w/ On-Off Switch  is a two-in-one, you get a dual-ganged potentiometer an d an on-off switch. For the potentiometer-half, you've got a dual standard linear-taper 10Kohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off switch at the beginning of the shaft's rotation, the switch is...

This Panel Mount 10K Dual Log Potentiometer is a dual-ganged potentiometer that will satisfy all your stereo-signal needs. Instead of just one potentiometer, you actually get two separate pots, 'ganged' together. Turning the grippy shaft twists both standard logarithmic-taper 10Kohm potentiometers. It's smooth and easy to turn, but not so loose that it will shift on its own. We also offer this potentiometer in a singular...

This Panel Mount 10K Dual Linear Potentiometer is a dual-ganged potentiometer that will satisfy all your stereo-signal needs. Instead of just one potentiometer, you actually get two separate pots, 'ganged' together. Turning the grippy shaft twists both standard linear-taper 10Kohm potentiometers. It's smooth and easy to turn, but not so loose that it will shift on its own. We also offer this potentiometer in a singular...

This Panel Mount 10K Dual Logarithmic Potentiometer w/ On-Off Switch  is a two-in-one; you get a dual-ganged potentiometer an d an on-off switch. For the potentiometer-half, you've got a dual standard log-taper 10Kohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off switch at the beginning of the shaft's rotation....

This Panel Mount Right Angle 10K Linear Potentiometer w/ On-Off Switch is a two-in-one, with both a breadboard-friendly potentiometer and a switch. For the potentiometer-half, you've got a standard linear taper 10K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. It also comes equipped with an on/off switch at the beginning of the shaft's rotation. We like this one...

This rotary encoder is the best of the best, its a high quality 24-pulse encoder, with detents and a nice feel. It is panel mountable for placement in a box, or you can plug it into a breadboard (just cut/bend the two mechanical side tabs.) We also include a nice soft-touch knob with an arrow in it, fits perfectly and looks great. This encoder also has a push-button built into it so you can press onto the knob to close a separate switch. One...

Put your Snap! cassette on and sing along to "I got the power!" with this super useful power supply adapter where you can easily change the voltage with a snap of your fingers. On the front is a potentiometer knob and a LED 7-segment digital display. Twist the knob and look at the output voltage to range from 3 to 12V DC. It's kinda like a benchtop supply you can take with you anywhere. Or if you don't wanna take it anywhere,...

Discontinued -  you can grab  AdaBox Subscription  instead!   AdaBox007 – SPY is the perfect gift for folks who are just getting started in the world of DIY electronics. It's an excellent addition to our family of DIY projects, plus it's a solderless pack. This is also a great way to test the waters of AdaBox before committing to a subscription. Please note! This is NOT the subscription version of AdaBox!...

Round and round it goes, this nice round "scrubber" knob is the perfect mate to a rotary encoder.  It's got a wide 34.7mm diameter with a nice finger groove on its face so it's easy to turn with just one finger.  It works best with our rotary encoder, just snap it on and away you go. Please note: this knob won't work with our potentiometers which have T18 spline shafts! While rotary encoders look similar to...

Most modern headphone sets are purely digital - with three volume control buttons in-line with the cable. These headphones are interesting in that they have an analog volume control potentiometer. Perfect for use with electronic projects that don't have a volume control, or for phones that don't know how to use the digital buttons. There is one button on the headset, often used for 'pause' or 'mute' - when pressed it...

Manufactured by Spectra Symbol, these are nice little ribbon controllers (also known as 'soft potentiometers') with an adhesive backing. This shape is a circular soft potentiometer with a donut-shaped sensing region whose outer diameter is 55.96mm/2.2in and inner diameter is 35.63mm/1.4in. There is a nominal 10K resistance across the two outer leads. The middle pin resistance with respect to either of the outer pins changes depending on...

Discontinued.  Note - It is possible that this product may be put back on the site for sale.  The Arduino Starter Kit provides an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It contains all of the essential components required to start programming with the Arduino Uno board, and a guidebook featuring 15 different projects, which are designed to evolve the user from...

Our 2-Axis Joystick can be used to add analog input to your next project. The 2-Axis Joystick contains two independent potentiometers (one per axis) for reporting the joystick's position, with wiring options for voltage or resistance outputs. The modular form-factor allows you to plug the 2-Axis Joystick directly into a breadboard for easy prototyping. The 2-Axis Joystick includes spring auto return to center and a comfortable cup-type knob....

Measuring voltage and adjusting it is what electronics is all about so you won’t get far without friends like the Adafruit PCF8591 Quad 8-bit ADC + 8-bit DAC combo .   A nalog to  D igital  C onverters help by measuring an analog voltage and turning it into something a microcontroller like a Metro or Arduino can understand. If you’re using a single-board computer like a Raspberry Pi, you might not have any...

It's half USB Key, half Adafruit Trinket, half rotary encoder ... it's Rotary Trinkey , the circuit board with a Trinket M0 heart, a NeoPixel glow, and a rotary encoder body. We were inspired by this project from TodBot where a rotary encoder was soldered onto a QT Py. So we thought, hey what if we made something like that that plugs right into your computer's USB port, with a fully programmable color NeoPixel? And this is what we...

The Arm-based Internet of Things Pack for Raspberry Pi 3 is another great addition to our family of IoT packs. If you want to start using your Raspberry Pi as an IoT-enabled device, then this kit is for you. You might not know it, but Arm-based chips are everywhere . From mobile devices to supercomputer, from medical instruments to agricultural sensors, and from base stations to servers; Arm technologies each 80% of the global...

The Arm-based Internet of Things Pack for Raspberry Pi 3 is another great addition to our family of IoT packs. If you want to start using your Raspberry Pi as an IoT-enabled device, then this kit is for you. You might not know it, but Arm-based chips are everywhere . From mobile devices to supercomputer, from medical instruments to agricultural sensors, and from base stations to servers; Arm technologies each 80% of the global...

The Arm-based Internet of Things Pack for Raspberry Pi 3 is another great addition to our family of IoT packs. If you want to start using your Raspberry Pi as an IoT-enabled device, then this kit is for you. You might not know it, but Arm-based chips are everywhere . From mobile devices to supercomputer, from medical instruments to agricultural sensors, and from base stations to servers; Arm technologies each 80% of the global...

Add knobs to your grid with this add-on accessory for the HELLA UNTZtrument. This is a replacement piece of laser cut acrylic to use when building an Adafruit HELLA UNTZtrument It's perfect for adding a rotary encoder or any of our panel mount potentiometers. Swap this in during your build or upgrade your HELLA UNTZtrument after the fact. This piece can be used for the front only. Use the 'normal' UNTZtrument add-on for the two sides...

Build and customize your very own open-source button grid controller based on the Adafruit Trellis with the UNTZtrument kit HELLA UNTZtrument KIT ! Designed by PaintYourDragon, this DIY kit comes with delicious translucent button pads, controller pads, diffused white LEDS and a custom laser cut enclosure. The result is a sturdy, BIG , and elegant but also super-hackable music or video (or something else???) controller device. We designed...

Add knobs to your grid with this add-on accessory for the UNTZtrument. This is a replacement piece of laser cut acrylic to use when building an Adafruit UNTZtrument. It's perfect for adding a rotary encoder or any of our panel mount potentiometers. Swap this in during your build or upgrade your UNTZtrument after the fact. This piece can be used for any/all of the sides except for the one with the USB cutout. So you can use up to 3 for...

Manufactured by Spectra Symbol, these are nice little ribbon controllers (also known as 'soft potentiometers') with an adhesive backing. There is a nominal 10K resistance across the two outer leads. The middle pin resistance with respect to either of the outer pins changes depending on where on the strip one presses. When no pressure is applied, the middle pin floats, so be sure to use some sort of weak pullup, such as 100K ohm. To use...

Rotary encoders are soooo much fun! Twist em this way, then twist them that way. Unlike potentiometers, they go all the way around, and often have little detents for tactile feedback. But, if you've ever tried to add encoders to your project you know that they're a real challenge to use: timers, interrupts, debouncing... This Stemma QT breakout makes all that frustration go away - solder in any 'standard' PEC11-pinout rotary...

Forrest M. Mims III is a trusted name in the electronics world for good reason: his charming and engaging texts have drawn millions of people into the world of electronics for the first time. Star Simpson has created an electronic tribute to those hand-drawn circuits by bringing the projects to life. These kits are an exquisitely designed series of finely crafted and highly detailed boards. These are the Circuit Classics . They make a great gift...