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Forum Index : Microcontroller and PC projects : 2.4" OLED VU METER

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asknik2022
Regular Member

Joined: 26/03/2022
Location: United Kingdom
Posts: 94

Posted: 06:25pm 29 Jun 2024

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2.4" OLED SSD1309 using SSD1306 Drivers
On a Raspberry Pi PICO
Using Micropython
DUAL Channel VU METER

zeitfest
Guru

Joined: 31/07/2019
Location: Australia
Posts: 576

Posted: 12:50pm 01 Jul 2024

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Excellent stuff

Are the displays via I2C or spi ? Are the two displays driven as a composite ?
What is using micropython like, any impressions ?

asknik2022
Regular Member

Joined: 26/03/2022
Location: United Kingdom
Posts: 94

Posted: 01:59pm 01 Jul 2024

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The Displays come with both SPI and I2C but when purchaed are setup as SPI.
In order for the two channels not to interfere with each other, I used SPI0 and SPI1

I have only just started using uPython as I couldn't get this to work on MMBasic as I was told that MMBasic did not support the SSD1309's (and I hate Arduino.)

uPthon is growing on me the more I use it.
Using the Thonny IDE is very easy and the output results are displayed within the IDE at the bottom (similar to Arduino) which is easier than trying to use MMC
Also the results are almost instantaneous as you don't have to wait for the MMBasic program to be uploaded.

I like the way that MMBasic uses the options commands to pre-setup the displays etc as it can be a pain to install the uPython display modules.

If you want I can left you have the uPthyon code that I wrote for this VU Meter.

I also created a small buffer amp to give the audio input more adjustment control because of differing outputs from various audio sources. I can supply the schematic if you are interested.

If you want any more info then please ask.

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