To write Key A and Key B onto a WS1850S, connect the device to your PC and use compatible software. Place the MIFARE card on the reader, authenticate the target sector using the default key, and access the sector trailer block. Input your new Key A, access bits, and Key B in the correct format. Write the data, verify authentication with new keys, and ensure access settings are not misconfigured.

@VK3AWA_1

If you are using Windows 10, upgrade your Windows system to the latest version. Use other operating systems to compile (such as Linux distributions). First, make sure that "rom\miniz.h" exists in Arduino's ESP32 board manager files. Then try to manually change all paths containing #include <rom/miniz.h> to absolute paths. For example, #include "C:\Users\admin\Documents\Arduino\libraries\esp32-xxx\xxxxxx\rom\miniz.h"

@mdseldon
are you able to access the serial log?

@kuriko yes！I tried this but it is not the frequency-amplitude data?

@twigs said in Using M5Stack for Custom Signage Displays – Need Advice:

Hey everyone, I’ve been exploring M5Stack modules for a custom signage controller project—curious if anyone here has experience using UIFlow or MicroPython for real-time display updates?"
"Also open to suggestions on the best units for LED or TFT screen integrations—appreciate any tips!

For a start, Micropython is not a realtime language, it is an interpreted language.

The biggest issue for signage is that of memory and ram, the bigger the sign, the more the memory is required.

Still no Mic in 2025, in UIFlow2!

screen capture M5core Webserial.png

The error in the Passive Buzzer Unit is still present. More precisely, this error has been present in all PWM units since version 2.1.8. Does anyone know what has changed since then?
Does anyone know how to work around this error, other than reverting to version 2.1.7?

@giray2012
try reset it several times

@Handcannon
EZData is under maintenance and will be offline for a while.

@charlesRD said in LoRaWAN EU868 RAK3172(H) program issue:

As a result, I decided to switch to the Arduino IDE (even if i wanted to stick with UIFlow2). I downloaded the appropriate library and attempted to run an example program, but even the basic example fails to work with this module, i got stuck in the 1st while loop.

@udotz have you tried to use M5Burner and then "erase" before new firmware? also try to load just simple arduino example or M5 EasyLoader for this device

I figured it out. I was simply clicking on the link which obviously is an HTTP GET request. Trying this in Chrome DevTools | Console works fine (note the "PUT" method):

fetch('https://ezdata2.m5stack.com/api/v2/device/updateStamPlc/${device_id}/relay/0/true', {method: "PUT"}) .then(res => res.json()) .then(console.log)

Result:

{code: 200, msg: 'OK', data: 1}