The UnitV/StickV (K210) Devices are serial devices. You need the MaixPy IDE to program and preview. The UnitV2 Devices are small Linux Computers and have a USB- and WiFi Network interface.

Hello @Pajdzian

I measure about 62 mA charging current (at the battery) when using M5Launcher and the same amount when running Cardputer UIFlow2 or Demo firmware (the one preloaded).

So I am curious: what other firmware did give you a slower charging rate?

Thanks
Felix

Hi @scoobysnax

I also searched far and wide for a connector for the bat.

I used these: https://www.diyelectronics.co.za/store/connectors/1831-molex-125-2-pin-male-and-female-connector-cable-pair.html

So Molex PicoBlade 1.25 2-Pin is another term you can search for.

Hello @mukul_100_

please find an example here with M5Dial and RS485 unit controlling an ACSSR relay via Modbus protocol.

Thanks
Felix

@PhilB79 said in M5CoreS3: "ERROR Device type unknown" when trying to connect both CoreS3 and CoreS3 SE to Server.:

@teastain
UIflow 2 / Select device / RED dot next to the CoreS3 graphic. Same applies to CoreS3

silly question but you are logged in to Uiflow2 with same login credentials as in M5Burner (bind)

@aitech Dont' throw that sensor away yet.
There is an error in the ENV_Pro demo code:
Line 51 should read Wire.begin();
After changing that it worked fine for me.
The interface address for the sensor is actually defined on line 57.
Pretty impressive sensor.

@ddhard I was thinking of using https://shop.m5stack.com/products/esp32-ethernet-unit-with-poe
in terms of space.
programming with UIFlow or Arduino IDE but I didn't see the esp32-ethernet-unit-with-poe controller in the UIFLOW list.

Even when connecting the M5Dial to USB while holding the rear boot button, only one COM port is displayed.
It’s unusual if two ports are not displayed, right?

@kdshawee87

Is there a possibility that it is conflicting with the Arduino macro?

#define min(a,b) ((a)<(b)?(a):(b))

This is a rough way of writing it, but in the header

#include <M5EPD.h> #include <Settimino.h> #undef min

Will it compile if I undef it?
However, in this case, the standard min cannot be used in this file.

@NVERD

I have burned my camera with the latest firmware (1.1.0) and the the long press on the side to get access to the config does not work by me either. But if I burn it with version 1.0.0 the long press works:
ab6e1815-ac1a-44af-b7bd-215ecdd804ad-image.png

However, if you can see an IP on the serial interface you have probably connected the camera to a network with a DHCP and you should be able to stream if your PC is connected to the same network.

But note that the urls are:
http://<CAM_IP>/stream for v 1.0.0.
and
http://<CAM_IP>/ for v 1.1.0.

Hello @Kris

thank you for sharing your solution. With 5 V supplied from an external power supply I actually measure about 4.7 V going to the SIM800L due to the voltage drop of diode D1. But yes, that is still out of the specified VBAT absolute maximum rating of 4.5 V.

Thanks
Felix

@zhiyongwoo Ahh sorry I read it as CoreMP135 not CM4stack.
If it works on another CM4 then it could be something in the Kernel.
Have you asked on the RPI forums ?

It could be a power issue, have you checked out this discussion? https://forums.raspberrypi.com/viewtopic.php?t=350942

@nzmikec said in EXT unit to measure engine RPM:

..... i2c device to count these pulses and send my device an RPM value.

What is the device you're going to use to receive the values on I2C?

Maximum RPM (and pulses per minute) would be 11,000RPM.

Maybe you don't need an external device for counting. 11,000 RPM with 1 pulse pr revolution is about 190 Hz which an ESP32 should be able to count directly by it self via one of its GPIO's.

@HappyUser

TimePageSprite.drawString(20, 20, "Hello", (const lgfx::FixedBMPfont*) &fonts::FreeMonoBold12pt7b);

@felmue When i unplug the camera and try to stream the video it dies after about a minute, surely it should last longer than that, how can i charge the battery? I'm not sure if im just not doing something right.

@ajb2k3 Thank you, I found the schematics (https://github.com/m5stack/M5-Schematic), but do you know where I can find Gerber files ?