There is also people in the discord cardputer community looking into adding a second bigger screen.

I recall the last action before I started to have the issue and I now suspect it was my particular scenario of charging the din base battery that might have damaged one or more of the power distribution mosfets. I shall describe the scenario here as a caution for fellow core s3 owners. firmware installed: uiflow 2.0.1 external device connected: M5Stack GPS/BDS unit connected to port c at the din base. charger used: wall charger with multiple usb c and a ports. one of the usb c port was used. sequence of event: a gps related uiflow program was running and the battery dropped low connected the wall charger to the core s3 with a usb c to c cable to charge the battery inside the din base after some time switched off the core s3 by holding the power button while the charging is still going on core s3 felt very warm to the touch but I did not think too much of it. charging was completed after the red indicator turned off I suspected that in sequence 4 one or more mosfets were overheated and damaged.

@eicke Search this community website for: Dial connector And see the M5Stack Dial document page here: https://docs.m5stack.com/en/core/M5Dial [image: 1711040449978-1709937244466-screenshot-2024-03-08-at-5.33.53-pm.png] https://m5stack.oss-cn-shenzhen.aliyuncs.com/resource/docs/products/core/M5Dial/DB2EK-2.54-2P-GN-S 2.54mm 2Pin Green.pdf Also I just realized that the actual 2 pin part number is in the URL of the datasheet! DB2EK-2.54-2P-GN-S \o/

@alex1 not without more information ?

Sorry for digging this old post....but... I have the same Issue. My application should update the display "as smooth as possible" that means the short flickering for a full refresh is ok (takes less than 1 second) but not the whole startup flickering-clearing-UIFlowLogo-flickering-nothinguntilmydatagetready-flickering thing. My solution is now a wait instead of sleep which draws the battery too fast. Any idea how to do that in UIFlow?

Have you charged it for several hours?

Here you find the information about this module: https://docs.m5stack.com/en/unit/hall According to the schematic it contains three A3144 Hall-sensors and a 74HC08 AND-Logic. The datasheet of the A3144 tells me that it has an open-collector output and the schematic that they are pulled up to 3.3V by resistors. So the function is: as long as all three sensors are not in a magnetic field that is higher than the level for switching (see datasheet), the AND gate output is HIGH. If one or more of the sensors are triggered by magnetic field, the output goes LOW. There is nothing to configure or program inside the module. The decission if the module fits to your project is up to you. By the way, if you plan to use a Arduino compatible controller it might be an option to use one that is based on ESP32. The controller already contains a Hall-Sensor. Just that you know: M5Stack does not make a mystery about the inside of their modules. You always find a schematic and all the datasheets that tells you everything about the hardware and its function. It is a big benefit if you learn to read and understand this informattion.

@teastain When I started I had a 2012 MBP (still have it sat on the floor) but had to buy a 2022 M1 iMac for M5Stack writing . The device came recommended but I wouldn't be surprised if it was the stupid TB port.

Hi, I created an issue in the M5GFX repository. Big kudos to @lovyan03 for providing a very fast answer and solution. For me the solution for an M5Stack CoreS3 is to add an include for <SD.h> #include <SD.h> #include <M5CoreS3.h> See M5GFX issue #79 Error: cannot declare variable 'file' to be of abstract type 'lgfx::v1::DataWrapperTfs::SDFS' for reference.

When using "myCobot 280 Pi - 2023", the voltage adapter is 12V, not 8.4V. Also, I purchased on Amazon and the power connections where screwed in reverse. Is there anywhere I can find better specifications on this pump?

@flypeek No knowing anything about the arduino I just get errors.

Hello, I am facing the same issue and not able to display the images on to the M5 Paper. I have tried both canvas.drawPngFile(SPIFFS, "/smiley.png", 0, 0); and canvas.drawJpgFile(SPIFFS, "/smiley.jpg", 0, 0); but no luck. I already included #include "SPIFFS.h" and initialized SPIFF using M5.begin(true, true, true, true, false);. The png and jpg files are inside the data folder. SPIFFS.open("/smiley.png") is able to open the file however it is not printing any file content on the console. I think it is required to format the SPIFFS for the first time, as mentioned here so I followed these steps but ESP32 Sketch data upload is not appearing in arduino 2.0. However I am able to display the png image using canvas.drawPngUrl("http://imageUrl"); but it is taking more time and quite slow. Could you please help me in understanding what I am doing wrong? @simonm @felmue

see here, yesterday; https://community.m5stack.com/topic/5918/m5cardputer-com-is-reading-it-as-dfrobot-beetle -Terry

@ajb2k3 said in Core unit blank screen: Sounds like the screen may have died. You haven't tried to remove the screen have you? https://www.youtube.com/watch?v=OpwpN1lORMo&t=1s I showed how easy it is to damage the cable in the process of repairing a core. I had it open to check for any sign of damage/bad contact but couldn't find anything,

Hi, I have the Dial (in UIFLOW2) now talking to the home IOT server now thanks to your help, Just need to sort out some server side issues. I can get the ACSSR to work with the UIFLOW 1 blocks with the core and core2 but the atom just doesn't want to work.