@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.

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@Anasilviaavalos had the same, M5burner bind with account and re-load firmware/ user application sorted it

@rictim had same, binding and loading fresh firmware/ user demo via M5Burner helped

@jakeycodesstuff what cards? RFID? then you need RFID unit.

Just to clarify my motivation: I would like to upgrade the Module firmware to GRBL1.1 instead of 0.8 I would like to communicate with the Module from a raspberry pi via raw serial commands and not the high level I2C Library provided by M5

Hello @DR_Froggy_rD I am afraid that doesn't work. A PaHub is for i2C devices (red Grove connector); the PDM unit is an I2S device (white Grove connector). BTW: that is the reason in UIFlow2 PaHub doesn't show as option when the PDM unit selected. Thanks Felix

Hello @rammelsberg I don't see solder jumpers and I cannot find the source code for the firmware running in M5GoPlus2 so no, I don't think you can easily modify the I2C address. Thanks Felix

Hello @s1y99 ok, now I understand - thank you for clarifying about the closed source M5Core firmware. BTW: for RST and IRQ you could set no jumper and then solder a wire each to the desired GPIO on the M5Stack bus connector. Thanks Felix

@obstbauer TBH if you are using M5Stack modules/units with not M5Stack controllers maybe its worth to have at least one M5Controller (atom?stick? )to be able to check module functionality

@LeBagh No, the housing clips over the contacts and is held to the PCB only by the contact pins. It is not a normal header but it is a 2.0mm header not a 2.96mm header

@Knobsi Hi, your question is already two years old. I guess you'll have found the answer, however I just came across it today. I want to share with you an experience I had yesterday: Suddenly I encountered a problem after upgrading the Arduino IDE from v2.3.4 to v2.3.5. The board that I use is an M5 Atom Echo which has an ESP32-PICO processor. After compiling and building a sketch, that compiled, built, and ran OK with v2.3.4, It crashed after compiling and building and running with v2.3.5. In the crash report I saw "DIO". In Arduino v2.3.5 I checked the setting: > Tools > Flash Mode. I saw that the Flash Mode was set for: "QIO". After I changed the setting Flash Mode it to DIO, re-compiling and building, the sketch ran OK. Regards, @Paulskpt

@holofloh Connecting TXD to RXD & supplying 5V to the Grove connector works great! I never thought about studying the schematic right on the device. Thanks for your assistance!

@s00pa 我也遇到了相同的问题哪怕是查看了源码依旧找不到为何会发出声音