Posts made by patf

I've been using this on Core2 for a couple of months now and it is excellent. The main improvement is the LCD graphics library is Lovyan's GFX library, whereas the current M5 library is a quite old version of Badmer's TFT-eSPI.

Hi there, I have an I2C sensor I want to interface to the pogo pins on the bottom of the M5Go Bottom2.
https://docs.m5stack.com/en/base/m5go_bottom2

I can see they are 0.1" pitch, but there are some plastic nubs and a small screw hole nearby for positioning.

Does anyone on here know where I can find the dimensions of the pogo pins and all of the details surrounding the pins (marked in red on the picture below)? This will greatly help in using Fusion360 to design a bracket which holds the sensor and interfaces it with the pogo pins.

Thanks in advance.

@DannyG86 can you please post your "platformio.ini" file? And also your #include and setup() code. I am on mac Big Sur v11.3 and can reliably program M5StickC, StickC Plus, Atom and Fire using PlatformIO.

Hi, for some strange reason, in the Atom GPS kit, M5Stack did not connect the GPS's receive (Rx) signal to the ESP32. In my repo on Github I show how a very simple one wire mod connects the Rx signal and therefore enables sending of serial commands to the GPS. This is necessary if you want to turn of unneeded NMEA sentences.

I inlcude full source code which shows how to issue commands to the GPS to turn off all NMEA sentenes except for GGA and RMC, use TinyGPS++ to parse and format the GPS data, and log it to the SD card. Please note I don't use the M5 object, I directly inlcude all needed libraries.

There are photos showing how to do the hardware mod on the Github Readme file.

I have a large program which I developed on a TinyPico, and now want to run it on the StickC.

It runs fine on M5StickC after flashing the first time. If I turn the stick off by holding the power button for > 6 seconds, it turns off ok. My problem is, if I then use the same button it will not turn back on. I've tried for a brief press, and up also > 2 seconds.

If I reflash the same program, it will not start.

The only way I can get it to run again is to flash any of the example Stick C programs, then flash my program again and it works until I power down again. My program does not use #include <M5StickC.h>. Does my program need to include this file and instantiate M5.begin(); for the power button to work ok?

Thanks!