This issue is two part:

• https://periph.io/x/periph/conn/gpio doesn't document that Halt is the formal way to unblock a WaitForEdge function.
• https://periph.io/device/button/ and https://periph.io/device/pir/ should demonstrate that in a copy-pastable way.

This awesome library works on TinkerBoard and luma.OLED.
This is the configuration:

• TinkerOS 2.04
• ASUS GPIO API for python libraries (includes a full GPIO RPi library)
• i2c SSD 1306 0.96" OLED diplay

Here is a short video showing the oled in action.

https://youtu.be/NiKvo_2GfNw

Describe the bug
a freefont and ssd1306_print8 calls ssd1306_write8 which uses fixedfont-width to do line break :-(

size_t ssd1306_write8(uint8_t ch)
{
...
    else if ( (ssd1306_cursorX > ssd1306_lcd.width - s_fixedFont.h.width) || (ch == '\n') )

Please complete the following information:

• library version: 1.7.21 installed via Arduino IDE
• LCD display type: cheap 1

The clearToEOL function is useful when the screen is being overwritten instead of being cleared.
When using the 8x16 font, the clearToEOL function only clears one page, the top 8 pixels of the line, to the end of the line, instead of both pages.

I'm pretty sure it's currently broken. There's a good solution in jamwaffles/embedded-graphics#160 which could also be used here.

(copypasta from jamwaffles/sh1106#12)

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