@zano Thank you very much for reply , is there any instructions or tutorial how to compile the icon.c image array into the file and compile time , i would be thankfull . Best Regards . A workaround is to just copy the contents of icon.c into the main script where the include-line was. So, overwriting the include-line with the contents of the file that was meant to be included. I thought it would be enough to have icon.c in the same folder as the main script, but it was not fould that way for me. Pasting into the main File is not the intended way to do it, so can anyone tell how includes are meant to work here? I am pretty sure the path of the main script is normally working for include commands...

@felmue This fixed the issue! Thanks. I found that this was the issue. It was using Wire.begin() instead of Wire.begin(0,26)

Hello @ckuehnel could you share some additional information? E.g. which M5Stack core is it connected to? which Groove port are you using? how do you initialize the serial connection? which GPIOs are you using for TX and RX? could you share your UiFlow or Arduino code? Also these SIM7xxx modems take some time to initialize before they react to AT commands. Try sending the AT command a couple of times. Thanks Felix

I just received my Unit V2 and was wondering the same about running MQTT. Doing some digging on the chip and I found they already include the mosquito broker, and it works right out of the box. I also got the wpa_supplicant to connect this device to an ssid of my network. Now the device can just startup without the serial wire. Has anyone connected the existing server.py code to MQTT or other interfaces? Is the best approach just to modify the server.py code to start performing the additional operations, like publishing the JSON data over MQTT? thanks.

Hello @felmue Yes it is, I remember the electronic school 30years ago, thanks for reminding me. I desoldered the resistor and now I can switch LED's . Perfect. Thanks Lee

Hello @Jack-Drake a while ago I made some measurements for the M5Paper regarding light and deep sleep. You can find them here. Thanks Felix

Hello! You can find some examples here: https://github.com/m5stack/M5_Camera_Examples Hope this helps. :)

Hello. I'm having the same issue. Camera cannot be turned on or off by the physical switch and I can't find any code examples on how to actually set this up. Can anyone help? There no option for M5Camera in UI Flow either, so no quick way to click it together. Help would be greatly appreaciated!

Hello @falbriard yes, port C (blue / GPIO13 / GPIO14) is blocked by the GPS module. However you can define a second serial connection in your code using port B (black / GPIO26 / GPIO36) and then connect the NB-IOT to port B. And no, using two UART (serial) modules in parallel on the same port is not possible. Thanks Felix

the 1to3 hub is for connecting 3 i2c devices to port A when they have different address. For those portB devices you need a PortB HUB

Host use UART(AT Command) communication with the MQTT Unit. The MQTT Client is running on the Unit side. AtomPoE are use SPI Interface communication with the built-in W5500 Chip.

Too bad, Thanks for the answer. Apparently there is no lora point to point gateway in the range? or I did not find it. Thanks again for the time spent on the answer.

Hi @mel3ven I've been looking into this too. I've used this C++ producer in RPi setups. In looking at the specs of the UnitV2, I'm guessing you'd run out of RAM to use this C++ producer and get it to AWS Kinesis. Did you try to build it on the V2? Let me know if you figure out a way to do it, as I'd like to do the same. I'll let you know if I do.

This text uses Google Translate. I use UNIT CAMERA DIY KIT. I tested it with the latest cameraWebServer sample program. I got the same error, so I checked the source program. I found the following description in the comment of esp_camera.h. typedef enum { CAMERA_FB_IN_PSRAM, / *! <Frame buffer is placed in external PSRAM * / CAMERA_FB_IN_DRAM / *! <Frame buffer is placed in internal DRAM * / } camera_fb_location_t; I added one line to the cameraWebServer program as a trial. // if PSRAM IC present, init with UXGA resolution and higher JPEG quality // for larger pre-allocated frame buffer. if (psramFound ()) { config.frame_size = FRAMESIZE_UXGA; config.jpeg_quality = 10; config.fb_count = 2; } else { config.frame_size = FRAMESIZE_SVGA; config.jpeg_quality = 12; config.fb_count = 1; config.fb_location = CAMERA_FB_IN_DRAM; // add 2021-12-09 } I checked the operation of UNIT CAM. 12: 48: 08.541-> ets Jul 29 2019 12:21:46 12: 48: 08.541-> 12: 48: 08.541-> rst: 0x1 (POWERON_RESET), boot: 0x13 (SPI_FAST_FLASH_BOOT) 12: 48: 08.541-> configsip: 0, SPIWP: 0xee 12: 48: 08.541-> clk_drv: 0x00, q_drv: 0x00, d_drv: 0x00, cs0_drv: 0x00, hd_drv: 0x00, wp_drv: 0x00 12: 48: 08.541-> mode: DIO, clock div: 1 12: 48: 08.541-> load: 0x3fff0030, len: 1420 12: 48: 08.587-> ho 0 tail 12 room 4 12: 48: 08.587-> load: 0x40078000, len: 13540 12: 48: 08.587-> load: 0x40080400, len: 3604 12: 48: 08.587-> entry 0x400805f0 12: 48: 08.821-> 12: 48: 09.675-> ........... 12: 48: 14.695-> WiFi connected 12: 48: 14.695-> Camera Ready! Use'http://192.168.1.220' to connect [image: 1639047933104-%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-675-resized.png] [image: 1639047933046-%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-676-resized.png] [image: 1639047933224-%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-677-resized.png] [image: 1639047932893-%E3%82%B9%E3%82%AF%E3%83%AA%E3%83%BC%E3%83%B3%E3%82%B7%E3%83%A7%E3%83%83%E3%83%88-678-resized.png]

@felmue Thanks

@steve1 Mine worked fine when I took it out of the case. https://qiita.com/takeru@github/items/4f408e9edaf915f168d2