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![Small Black T-Bar Hall Effect Fader - 5V - The Pi Hut](http://thepihut.com/cdn/shop/products/small-black-t-bar-hall-effect-fader-5v-the-pi-hut-ada5460-39298001764547_900x.jpg?v=1660822007)
![Small Black T-Bar Hall Effect Fader - 5V - The Pi Hut](http://thepihut.com/cdn/shop/products/small-black-t-bar-hall-effect-fader-5v-the-pi-hut-ada5460-39298001567939_900x.jpg?v=1660822011)
![Small Black T-Bar Hall Effect Fader - 5V - The Pi Hut](http://thepihut.com/cdn/shop/products/small-black-t-bar-hall-effect-fader-5v-the-pi-hut-ada5460-39298001404099_900x.jpg?v=1660822000)
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You might recognize this interesting new component from behind-the-scenes studio clips of audio recording equipment or even music videos. A fader is a control device for fading or changing the sound volume, light intensity, or simply the gain on an audio or video signal.
Here is a small, black handheld-size DIY version for your next audio or music (maybe even with a NeoTrellis?) project. Connect the red wire to 5V, black wire to ground, and the yellow wire to your input to get a smooth-to-operate control with a pro quality feel. This isn't a potentiometer, instead, it uses a hall effect sensor: this means no scratchy, jumpy or worn-out knobs after years of use.