<![CDATA[Drawing an icon on the M5Paper from an array]]>On the M5Paper how can I draw an icon using a function with drawPixel() from an array of the form;

static const uint8_t SUNRISE64x64[8192] = {
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff........};

]]>https://community.m5stack.com/topic/5929/drawing-an-icon-on-the-m5paper-from-an-arrayRSS for NodeWed, 29 Apr 2026 06:47:50 GMTSat, 30 Dec 2023 16:57:20 GMT60<![CDATA[Reply to Drawing an icon on the M5Paper from an array on Sun, 31 Dec 2023 10:32:14 GMT]]>Hello @Steve1

I had success with the following converter settings.

0_1704017737289_IconConvert1_20231231.png

0_1704017750382_IconConvert2_20231231.png

This creates a array size of 8192 - same as the stock icons and displays correctly using the DrawIcon() function from the Weather app.

// array size is 8192
static const uint16_t IconCloud64x64[]  = {
  0x0000, 0x0000, 0x0000, 0x0000, 0x0000,

Note: I had best results converting jpg using above converter. (png did not work for me and always created an all zero array.)

Thanks
Felix

]]>https://community.m5stack.com/post/23189https://community.m5stack.com/post/23189Sun, 31 Dec 2023 10:32:14 GMT<![CDATA[Reply to Drawing an icon on the M5Paper from an array on Sun, 31 Dec 2023 08:47:30 GMT]]>Yes indeed, that's the very code I'm using at the moment. The problem is the people over at the Arduino Forum insist that the code is "not allowed" and bad C/C++ coding because the icon arrays are uint8_t and the DrawIcon function uses uint16_t. Here is a link to the discussions this issue appears towards the end of the discussion from post 20/38. Also it is very difficult for me to understand eactly how the DrawIcon function works, even though it most certainly does work. I have tried changing the uint16_t references in the function to uint8_t and the arrays to uint16_t but all I get with both changes is a black square instead of an icon.

]]>https://community.m5stack.com/post/23187https://community.m5stack.com/post/23187Sun, 31 Dec 2023 08:47:30 GMT<![CDATA[Reply to Drawing an icon on the M5Paper from an array on Sat, 30 Dec 2023 19:13:17 GMT]]>There is an M5Paper weather display that uses that very code. Maybe looking at it will help you figure it out. I am just getting started coding, but I compiled that weather project yesterday and remember seeing that code.

https://github.com/Bastelschlumpf/M5PaperWeather/blob/master/weather/Icons.h

]]>https://community.m5stack.com/post/23185https://community.m5stack.com/post/23185Sat, 30 Dec 2023 19:13:17 GMT