Kaloyan RaevReni Stambolieva
Published © CC BY

Snap:bit - Control Speaker Volume With NPN Transistor

Learn how to amplify and control the volume of the sound from the BBC micro:bit through the Speaker of Snap Circuits.

BeginnerProtip30 minutes94
Snap:bit - Control Speaker Volume With NPN Transistor

Things used in this project

Hardware components

BBC micro:bit board
BBC micro:bit board
×1
snap:bit board
snap:bit board
×1
Snap Circuits® LIGHT
Snap Circuits® LIGHT
1 x Battery Holder (B1), 1 x Slide Switch (S1), 1 x 8Ω Speaker (SP), 1 x NPN Transistor (Q2), 1 x Adjustable Resistor (RV), 2 x 1-Snap Wire, 1 x 2-Snap Wire, 3 x 3-Snap Wire, 1 x 6-Snap Wire, 1 x Red Jumper Wire
×1

Software apps and online services

pxt.microbit.org
micro:bit pxt.microbit.org

Story

Read more

Schematics

Connect Speaker (SP) with NPN Transistor (Q2) and Adjustable Resistor (RV) to Micro:bit

Credits

Kaloyan Raev

Kaloyan Raev

27 projects • 7 followers
I am a software engineer in my day job. I love hacking. I spend half my day repairing my kid's toys. I am the creator of the snap:bit.
Reni Stambolieva

Reni Stambolieva

27 projects • 3 followers
Hi! I'm Irena a mother of two. I am a homeschooling mom and we like to play and learn.

Comments

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