<![CDATA[PSRAM upgrade for the CardputerADV]]>It would be so nice if there was a way to upgrade the Cardputer Adv with a board that has PSRAM.
Idk whether it's technically possible to create an ESP32 stamp with the same connectors as the S3A, that you could just plug into the CP, but that would be awesome.
The cardputer is such a great, compact device, but it's a bit disappointing that it lacks the computing power for lots of things like running bigger .js files.

]]>https://community.m5stack.com/topic/7910/psram-upgrade-for-the-cardputeradvRSS for NodeTue, 28 Apr 2026 23:06:56 GMTTue, 25 Nov 2025 12:49:40 GMT60<![CDATA[Reply to PSRAM upgrade for the CardputerADV on Sun, 22 Mar 2026 18:36:02 GMT]]>I took a closer look and compared M5StampS3A vs M5StampS3 BAT and I must say that it is not possible to do any piggyback for pin mapping at the M5StampS3A level since ESP32-S3FN8 vs ESP32-S3-PICO-1-N8R8 have differences in the number of GPIOs (6 pins error), see the difference table below:

f8a8e80c-1dca-472a-ab48-dac7e6656c42-image.png

So it only remains for M5Stack team to upgrade M5StampS3A for 2/8 PSRAM, i.e. have M5StampS3B version.

]]>https://community.m5stack.com/post/30802https://community.m5stack.com/post/30802Sun, 22 Mar 2026 18:36:02 GMT<![CDATA[Reply to PSRAM upgrade for the CardputerADV on Sat, 21 Mar 2026 17:25:24 GMT]]>Last Friday new product M5StampS3 BAT (8MB PSRAM) shows where the M5Stamp controller will continue. It is a new generation that does not allow an increment from the original M5StampS3 or M5StampS3A version. It introduces a 24pins BTB connector and has directly 2x9@2.54mm pins with 11 GPIO.
I note that BTB nor 2x9pins is not a standard and neither an increment of any standard or a derivative of any standard, it is not even possible to use Atom (4 + 5 pins) modules, or AtomS3R BTB connector.

So, this new controller is not capable of stacking existing boards or other popular boards such as XIAO Seeed Studio.

So, for assembly compatibility, a piggy-back board needs to be designed, which would be inserted instead of the M5StampS3A and the new M5StampS3 BAT module would be inserted into it.

]]>https://community.m5stack.com/post/30797https://community.m5stack.com/post/30797Sat, 21 Mar 2026 17:25:24 GMT