Hello,
i use a Waveshare 4.2 epaper. Works good, but the refesh time is not correct. the display refreshed every 60s, but in my config i have:
display:
- platform: waveshare_epaper
id: epaperdisplay
cs_pin: 15
dc_pin: 12
update_interval: 180s
busy_pin: 16
reset_pin: 4
model: 4.20in
....