Waveshare 3.7" Pi Pico and FireBeetle support

grahamwhaley commented 2 years ago

Add support for a Waveshare Pi Pico 3.7" display connected to a DFRobot FireBeetle.

Notable things in this example include:

Use u8g2 functions to get string/font sizes rather than display.getTextBounds, as it seems more accurate when using u8g2 fonts, and makes drawString[MaxWidth] easier to place.
Use the calibrated ESP32 adc functions to measure the battery voltage, and use a simpler algorithm to predict percentage.
For the overnight long sleep period, do a single long sleep rather than wake every 30 minutes to check.
When the battery voltage is below a dangerous level, print a large obvious battery warning on the screen!

Fixes: #181

Signed-off-by: Graham Whaley graham.whaley@gmail.com

G6EJD commented 2 years ago

Thank you

grahamwhaley commented 2 years ago

Hi David, the PR got closed without a merge - just wanted to check that was the intent?

G6EJD commented 2 years ago

I did select Merge, not sure what's gone on here. I did notice the original request remained open though which was confusing. No way to resolve this that I can see.

G6EJD commented 2 years ago

I re-opened then merged again, looks OK now.

grahamwhaley commented 2 years ago

Yep, that did it - many thanks!

G6EJD / ESP32-e-Paper-Weather-Display

Waveshare 3.7" Pi Pico and FireBeetle support #182