Circuit and code to display an audio spectrum bar chart on the BBC micro bit.
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
MSGEQ7_Breakout_Board.png
README.md
microbit-MSGEQ7-sequencer.hex
microbit-MSGEQ7.py
zbit01.jpg

README.md

micro-bit_spectrum

Code to display an audio spectrum bar chart on the BBC micro:bit using the MSGEQ7 spectrum analyser chip - circuit schematic as shown.

The prototype was breadboarded and then transferred to a zbit:builder board (kindly supplied by http://zbit-connect.co.uk/). Due to the limited prototyping space on the zbit:builder, less experienced constructors might find it easier to use regular stripboard.

Video here: https://youtu.be/wQXjX3phBOo

The MSGEQ7 chip is available from Sparkfun and regional/global agents.

Beware of buying the MSGEQ7 chip on ebay - some/many have turned out to be faulty and it's suspected that they are manufacturing rejects.

Schematic Image

On zbit:builder Image

(That's some mighty [fine/scary - insert as appropriate] circuit squishing going on there.)