i think EspNow is the right one for this. is easy to program in Uiflow

I am also looking for this answer.

@ajb2k3 thanks for your reply. Does this only work with the hub? Or also with splitters like this one: https://www.tinytronics.nl/shop/nl/platforms/m5stack/accessoires/m5stack-grove-t-connector-5-stuks ? The hub is a bit big for what I want to do.

@silvereq thank you very much for your information i will update the instruction and btw, i am almost finished with a modified version of the code so that you can insert a config text file onto a sd card wich only has to contain the wifi-settings, timezone, pairs and the color of its name. I will updatede https://github.com/frittna/Crypto_Coin_Ticker soon. It will then be much easier to "burn" the compiled app into the M5 and nobody needs to compile on its own if he is not intended to change or improove the bitcoin price ticker thx!

So my last comment provided the solution.... The correct way of doing this is : 1/ Specify the Unicode character in the payload with chr(186) where 186 is the character number (in this case representing MASCULINE ORDINAL INDICATOR - Unicode: U+00BA, UTF-8: C2 BA. 2/ Ensure that your json.dumps applies utf-8 encoding before sending it to MQTT as follows: m5mqtt.publish(topic, json.dumps(payload).encode('utf-8')) Problem solved.

I've been trying to get this to compile/install using the Arduino IDE and i'm not getting anywhere... Once installed, the M5Paper just continuously reboots, flashing the screen on and off. Watching the serial monitor I see this repeated on each reboot... Any suggestions? Rebooting... M5EPD initializing...OK Guru Meditation Error: Core 1 panic'ed (LoadProhibited). Exception was unhandled. Core 1 register dump: PC : 0x400d7c9f PS : 0x00060330 A0 : 0x800d48ea A1 : 0x3ffb1f10 A2 : 0x3ffc19a0 A3 : 0x00000000 A4 : 0xffffffff A5 : 0x3ffc1a78 A6 : 0x0001fa40 A7 : 0x00000000 A8 : 0x00000000 A9 : 0x3ffb1ee0 A10 : 0x00000000 A11 : 0x00000000 A12 : 0x00000000 A13 : 0x000003c0 A14 : 0x0000021c A15 : 0x3f407a74 SAR : 0x00000011 EXCCAUSE: 0x0000001c EXCVADDR: 0x00000000 LBEG : 0x400014fd LEND : 0x4000150d LCOUNT : 0xffffffff Backtrace: 0x400d7c9f:0x3ffb1f10 0x400d48e7:0x3ffb1f40 0x400d5d7e:0x3ffb1f90 0x400e174b:0x3ffb1fb0 0x40088dbd:0x3ffb1fd0

@leo05 said in External WiFi Antenna?: @lukasmaximus Same here - We are using Fire or Core2 + Arduino. In dense environments (a lot of WiFi AP) device simply cannot connect or disconnects after a minute or two. Our options: 1. Add antenna somehow (with some soldering or whatsoever) 2.Add the additional WiFi module with antenna 3. Use other device. Any thoughts?

@m5stack it's been 3 weeks, without even a confirmation that you've read the issue. Could we please get an update? Or maybe @Zontex, you could bug someone at M5 HQ, since you seem to be more active.

This does not need a "revision" or "V2" model, it's a simple software addition. And you can already load your own fonts if needed.

A reset will trigger a power cycle, which in turn resets the SPI connection to the e-ink display. The display has a controller built-in, which at this point is also power cycled, and most likely runs the initialisation of the screen. So when you press the reset button, the display thinks it needs to get into a "ready for new data" state, which is why it "fades". If you want to work this around, I'd recommend storing the screen contents every time you write to the screen, to storage that is preserved during a power cycle (basically, dump that 200x200 4b array onto the flash), and make sure that your startup handling "updates" the screen with that content immediately after the device is initialised.

@iamliubo May I ask you if you are part of M5Stack staff? Not to bother you, just to understand the M5 ecosystem ;)

@felmue Thank you Felix. I tested the PortB hub. It works as well.