You can verify your PSRAM in CircuitPython using the gc module. With just one line of code you can confirm the number of bytes of heap RAM available.
There are two ways to use PSRAM on this Feather: advanced hackers can solder PSRAM to their unpopulated PSRAM spot or you can pick up a Feather RP2350 with 8MB of PSRAM already soldered on from the shop.


CircuitPython Usage
You will need to update code.py with the example script on your CIRCUITPY drive.
In the example below, click the Download Project Bundle button below to download the code.py file in a zip file. Extract the contents of the zip file, and copy the code.py file to your CIRCUITPY drive.
There are no additional modules needed in the /lib folder. The gc module is a core module.
Example Code
Once everything is saved to the CIRCUITPY drive, connect to the serial console to see the data printed out!
# SPDX-FileCopyrightText: 2024 Liz Clark for Adafruit Industries # SPDX-License-Identifier: MIT import gc print(gc.mem_free())
You'll see the available PSRAM heap print to the serial console.
Page last edited January 14, 2025
Text editor powered by tinymce.