@drwino I've not seen any designs available in STEP format. DXF and DWG formats are available via the link below, along with some 3D design examples.

Note Zazardev's Proto design - he managed to alter the original Proto STL at least a little as he filled in the holes in the frame.

https://github.com/PartsandCircuits/M5Stack-3DPrintFiles

I am been able to read the ADC on pin 35. This corresponds to ADC1_CH7 BUT I cannot get ADC on pin 36 to work. I think this is ADC1-CH0. Anybody has any sample code ? Thanks.

@jimit Many thanks for the reply, it is sad as it was the example I wished to include in my M5Stack YouTube review. Glad you liked it anyway! For those who are interested the video is here: M5Stack Review

Hello,

I found some pictures on the web, the pads are not populated and yes it is a short!! I removed the short with some fluxed solderwick and hope nothing is damaged by the short.

Hopefully the M5Stack-team respondes on how that could happen in production and releases the schematics and placement of parts.

Something else that is really odd, on the Keypad there is no bypass capacitor for the Atmel Microcontroller!

Best Regards,

Seppel

You can use hardwareSerial to assign (ex)Serial1 and Serial2 to different pin's then use Serial1 and Serial2 to communicate with the GSM and GPS

HardwareSerial Serial1;
Serial1.begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=x, int8_t txPin=y, bool invert=false);

Just an ideea...

@calin the bottom stack should be the watch 😂

Here is the solution. https://github.com/Bodmer/TFT_eSPI/tree/master/examples/Sprite/Sprite_scroll

Thanks to @Calin

@calin freeze with no serial message.
What is the IDLE task and how do I control all this?

Bodmer wrote a nice article on this https://github.com/Bodmer/TFT_eSPI/issues/121#issuecomment-380245040
When un-commenting Display.h/#define SPI_FREQUENCY 40000000, fillscreen nearly doubles.
80M doesn't work on some M5.

@daslolo Glad its working again.... I'm using standard Home edition on this machine - but the LTSB windows version you are using sounds like a good option I might use on another system. Thanks for mentioning....

For anyone interested this topic - using ESP-IDF with the M5Stack - was discussed here:

http://forum.m5stack.com/topic/148/m5stack-programming-without-arduino-ide-how

@dda So it is the "shut up"function ! ha ha

After disconnecting the M5 from the computer and grounding the source, the sampled signal is very clean.

@jimit yes 32GB is the max partition size for FAT32, that was a lucky choice.

M5Stack easy setup:

Use the device manager to install this https://bit.ly/2q6JZey Then expand that in your libraries folder: https://bit.ly/2q34DNx Finally, alongside libraries, create hardware/espressif and expand this https://bit.ly/2GyEsom in it - DONE!

@m5dude @joeybab3 @world101

0_1520926062432_d60dfa1c-0589-4e68-bc06-82e52d4e2106-image.png

--
The code for the counter pictured above has kindly been made available by the author at the following link:
https://gist.github.com/ksasao/c67d6fff5641e6fd40c7705352f6759e

A required file M5Stackupdater.h is available here: https://github.com/tobozo/M5Stack-SD-Updater/tree/master/src

--

There is also a timer app in the SAM menu program available here:
https://github.com/PartsandCircuits/M5Stack-SAM

--

And a list of programming functions here:
https://github.com/PartsandCircuits/M5CheatSheet

** Should add that color command listed above.

@m5stack, holding the button for programming works fine. Resetting is the issue with my unit. In some cases, even with the bottom plate off, the unit will not reset and run the downloaded firmware unless I let it sit a while. Other times it works fine.

@jimit 在 Display with wrong color and contrast after SD writing 中说：

ESPFlashDownload

I have just tried; I am able to erase the flash with ESPDownloadTool, both in SPI and HSPI, but if I upload the firmware via Arduino, the display has always the same problem.

I don't know I it works but, is it possible to reflash the bootloader?

Thanks,
Paolo