This panel mount Toggle Switch has built-in indicator lights so you know when the switch is on. They mount in a 20.2mm diameter hole and are rated up to 16A 12V. These SPST switches have three terminals, the two of which you would normally see plus one at the blue LED. Although these are for 12V, the LED only works on 5V.

This small On/Off/On Round Switch up to 10A at 125V AC can be mounted on a panel with a 20mm diameter hole. It will also look very elegant in your project.

This small On/Off Round Switch up to 10A at 125V AC can be mounted on a panel with a 20mm diameter hole. It will also look very elegant in your project.

A Pedal of Metal. This is the same type of Pedal you might find on a tattoo machine or as a damper pedal on an electric piano. The non-slip pad on the top and rubber bumpers on the bottom prevent the pedal from slipping out of place during use. If it opens, it's a simple switch and a big spring. This Pedal, however, has been described as "elegant and generous" and I think we have to agree.

This is a small Force Sensitive Resistor . It has an Active Detection Area of 0.16 "(4mm) in Diameter. This FSR from Interlink Electronics varies its Resistance depending on how much Pressure is being applied to the Detection Area. The stronger the Force, the lower the Resistance. When there is no Pressure Applied to the FSR, its Resistance will be greater than 1MΩ, with the Total Pressure applied to the Resistance it will be 2.5kΩ Two Pins extend from the Bottom of the Sensor, making it friendly to the Breadboard. are simple to set up and great for detecting pressure.

RGB LED Breakout - WS2812

MP3 Player Shield - SparkFun

SparkFun RGB and Gesture Sensor - APDS-9960

It's the end of the world, and you need a button to press. This is it!

It's the end of the world, and you need a button to press. This is it!

It's the end of the world, and you need a button to press. This is it!

This will be a treat for your ears! The Hamburger Mini Speaker is a 3W economical speaker option for any project needing stand-alone sound. 

A small Audio Speaker that is ideal for radio and amplifier projects.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.

This is a 35mm Concave Momentary Push Button similar to the ones you find on arcade games.