<![CDATA[M5Paper : Usage of canvas.setTextColor() to define different grey scales.]]>Hi,
I have a basic question arising from lack of examples.

I am referring to
https://docs.m5stack.com/en/api/m5paper/epd_canvas
in order to set different grey scales for text on a canvas.

I tried values from 0 to 15, 0x00, 0x0F, 0xFF and so on and found only 3 grey shades working.
Can someone please specify which are the different values to be passed in as the first argument to canvas.setTextColor() in order to achieve the 16 different grey scale variants?

Thanks,
Zitrone

]]>https://community.m5stack.com/topic/4362/m5paper-usage-of-canvas-settextcolor-to-define-different-grey-scalesRSS for NodeThu, 07 May 2026 00:22:08 GMTMon, 13 Jun 2022 18:51:46 GMT60<![CDATA[Reply to M5Paper : Usage of canvas.setTextColor() to define different grey scales. on Mon, 13 Jun 2022 20:34:12 GMT]]>@felmue Thank you for the explanation and the link :)

]]>https://community.m5stack.com/post/17723https://community.m5stack.com/post/17723Mon, 13 Jun 2022 20:34:12 GMT<![CDATA[Reply to M5Paper : Usage of canvas.setTextColor() to define different grey scales. on Mon, 13 Jun 2022 20:08:36 GMT]]>Hello @zitrone

the number of gray scales depends on the refresh mode used. For instance UPDATE_MODE_DU4 has 4 whereas UPDATE_MODE_GC16 has 16. Check out the description at the beginning of this file.

Thanks
Felix

]]>https://community.m5stack.com/post/17721https://community.m5stack.com/post/17721Mon, 13 Jun 2022 20:08:36 GMT