M5Stack RoverC controlled with M5StickCPlus , via ESP_NOW RemoteControl:
https://github.com/teastainGit/RoverC-StickCPlus-ESP_NOW-Remote-Control

But with no JoyC, just using the second StickCPlus IMU as a 'wand' to control the Rover.
This Project requires 2 M5StickCPlus Controllers:
https://docs.m5stack.com/en/core/m5stickc_plus

or the new M5StickCPlus2:
https://docs.m5stack.com/en/core/M5StickC PLUS2

controllers or a mix of either, but with suitable mods, mostly the include header:

@hanktttop OK. I'm wading into this discussion without having a Cardputer!
My other ESP32-S3 and M5Stack Atom S3 and several StampS3s all work very well in my Arduino IDE environment. I also have a bunch of S3 products from a manufacturer whose name cannot be said. (coughs into hand...T-Display S3).
So I am familiar with this S3 series on a M1 iMac.
My iMac has two Thunderbolt ports and two USB ports. I used the USB ports just fine for M5Stack-pre-S3-models, but the S3 models wont even power up on USB, they need the Thunderbolt outputs.
So, get to the point, teastain.
Connection is VERY fussy and unpredictable with S3.
All of the M5Stack S3 products that I have seen have both of the necessary buttons available. The Cardputer even has them at the front(!) no need to remove the S3 or peel back the sticker on Cardputer. (in fact DO NOT remove the S3 with Cardputer!)
The GO button is actually GPIO 0 and is called 'boot'.
The 'rst' button is otherwise called 'EN' which cuts power to the core when pushed and resets when released.
Method 1 unplug the Cardputer from the USB, press and hold G0 (on the left side of the Cardputer, plug back in and release G0.
Method 2 while plugged in press and hold G0, press 'rst' on the right side, release 'rst', then release G0.
In both cases if your sketch does not boot up and run, it is recommended to unplug it and plug it back in to boot.

@ajb2k3 Sure, here it is:

Here is the full example for all ESP32s using the OV2640 camera in Arduino IDE
(in the IDE board selection choose M5Stack UnitCamS3)
Remember to edit the .ino file to include your WiFi credentials!

The full sketch is here:
 https://github.com/espressif/arduino-esp32/tree/cf448906b3836fbe9368934713b697469254c62f/libraries/ESP32/examples/Camera/CameraWebServer

You can choose CAMERA_MODEL_ESP_EYE, and apply a little tweak in camera_pins.h like this: 
https://github.com/m5stack/UnitCamS3-UserDemo/blob/main/firmware/src/hal/cam/camera_pins.h#L21

Also in the library used in your sketch
app_httpd.cpp
I had to change Line 77 from ('1" enabled) to ('0' not enabled )

#define CONFIG_LED_ILLUMINATOR_ENABLED 0   

Successful upload serial output reads like this:

20:48:24.952 -> E (516) esp_core_dump_flash: No core dump partition found!
20:48:24.952 -> 
20:48:24.952 -> ......
20:48:24.952 -> WiFi connected
20:48:24.952 -> Camera Ready! Use 'http://192.168.0.37' to connect

@ajb2k3 I really like the idea of REPL !

MY(!) aging brain is resisting learning a new programming language.

In the (late) 70's I programmed in machine code and felt C was a "high level language".

I will investigate Python, could be fun!

Cheers to all.

Hi, I have a Core Basic HVAC program communicating with two Stamps using ESP_NOW and they are physically close, but the idea was to not run messy cables! The ESP_NOW is peer to peer WiFi, but no login to the internet or even the WiFi router.
One Stamp reads the HVAC vent temperature and reports to the Core, which in turn calculates the damper vane angle and transmits that back to the very same Stamp connected to a 180 servo motor.
The other Stamp just operates one or two small under desk heaters as required, by the Core.
Hope this helps.
Terry

@coolman626 This is sadly a confusing aspect of Arduino IDE V2...a "feature" that guesses your board as a "convenience" and it's always wrong.

In the search box start typing M5Stack until you see your board!

Really no big deal!
-Terry

@mhuis M5Stack uses 5V on the grove cable to cover all bases!
Most sensors today are 3.3V, but if one is still 5V, it will work.
Then any M5Stack brand sensors will have a step down power converter to it's internal 3.3v requirement.
The I2C is 3.3v.
The 8 Encoder is 3.3v. on the inside (STM microcontroller).
No logic level converter is needed.

@felmue "For testing integrity" I'm using the github EXT.IO Zip download and running the DIGITAL_INPUT_OUTPUT example right from there and then later from my Arduino directory, after checking that both Libraries M5Stack And EXT_IO are up to date.
Note, stubbornly I am using Arduino 1.8.19.
The Example would not run until I added Wire.begin(21, 22); delay(1000);
Seriously. I take it out and the sketch throws errors.
I am also disappointed that setPinMode "came and went".
I am becoming discouraged with M5Stack, unfortunately.

@mtylerjr The Core Basic has 15 GPIO peripherally arranged in the battery base, as well as generous grounds and voltage options.

@lordryck They are called Grove and are the standard for most M5Stack products.

https://shop.m5stack.com/pages/search-results-page?q=grove cable

Also used by Seeed products.

They're JST connectors type 'HY2.0-4P'.

I am trying to compile the Core Basic example from M5Stack github examples:
https://github.com/m5stack/M5Stack/blob/master/examples/Basics/Button/Button.ino

I keep getting this error"

Arduino/libraries/M5Stack/src/utility/pngle.c:31:10: fatal error: rom/miniz.h: No such file or directory
   31 | #include <rom/miniz.h>
      |          ^~~~~~~~~~~~~
compilation terminated.
exit status 1
Compilation error: exit status 1

Because of this I recently erased my entire Arduino IDE down to the Arduino15 folder and only reinstalled the latest:
Arduino IDE ver2.3.6 and
esp32 boards 3.2.0 and
M5Stack boards 3.2.1
libraries:
M5Stack latest ver 0.4.6 and all other required dependancies.

If...(and this is NOT the answer)...I revert to the old M5Stack boards 2.1.4, it compiles correctly. (and this is NOT the answer).
I keep my Arduino IDE environment up-to-date, but I have to be carful to not allow the M5Stack boards to update to current.
This is most tedious.
What can I do to permanently resolve this, going forward...without downgrading to an old M5Stack boards def like 2.1.4.
(This effects Core2, btw)
?How to install rom/miniz and compile OK?
Cheers, Terry
(@felmue do you have any ideas?)

@felmue This community website seems to have a problem with AI bots offering useless information as if they did not even read or understand the users question..

This is the second one in a few weeks.

Only since the board def "updated" automatically from ver 2.1.4 to ver 3.2.x, I cannot compile my trusty, dusty Core Basic (Or Core2).

/Arduino/libraries/M5Stack/src/utility/pngle.c:31:10: fatal error: rom/miniz.h: No such file or directory

If I downgrade to 2.1.x it compiles as usual for 5 years running.

I found this on google:

https://www.gonnalearn.com/from-miniz-h-compilation-error-m5stack-arduino/

and there have been some other reports on this very community site.
https://community.m5stack.com/topic/7569/issue-with-core2-library

My Arduino IDE ver2.3.6 asks me EVERY DAY to upgrade to M5Stack board def 3.2.x.
This is getting tedious. Ver 3.2.1 recently added did not help.

Is M5Stack abandoning the older Cores?

@alexcap Did you take it outside and wait 12 minutes?

@toffifee The raw outputs are beyond the ken of mortal man, except Accel which can easily be observed by placing it on a stationary level surface and observing that the accel values are stationary and one of the axes, usually Z is showing 1.00 (gravity).
Roll it onto its side and the 1.00 should move to another axis.
The other two outputs Gyro and Mag are best left to a positioning algorithm.

@ren072 Sounds like the battery has expired, this is an older StickC!
It happened to me and later on a StickC Plus.

@wwhite Did you plug the UNIT into the red socket on the left side?
These inputs are: 21 and 22.
You could plug it into the discrete I/Os around the base on the right side where you will find 26 and 36.

@nemelesic "Bruce" is hacking software and such is illegal.

@kuriko Thank you!
I will use 2.14 for now.

@kuriko Why not fix ver3.20?
Add rom/miniz.h where it needs to be.
I try to keep my Arduino IDE setup up-to-date but now it reminds me that 3.20 is available and I may need it for newer Tab products?
We need customer support not frustrating answers.
Technically all of the Arduino IDE examples in YOUR M5Stack Github GitHub for Core and Core2 won't work.
e.g. https://github.com/m5stack/M5Core2/tree/master/examples
Are you saying that older M5Stack models are no longer supported?