I'm using a 2.2" TFT SPI display in my Morse Code Trainer:
and it draws about 0.06A, not great, but not that bad, either. The key thing for me is the quality of the libraries that support the display. Also, the cost is pretty reasonable at under $6 (eBay #163356024114)..
On Thursday, March 28, 2019, 8:32:33 AM EDT, KE0GYC <dragonfanatic90@...> wrote:
I was browsing around and I found that you can get small e-ink displays for very reasonable prices:
They have very low power consumption, especially standby power (they essentially only draw current when changing the display), and are easily readable in direct sunlight, so may make a good option for a display for an outdoor radio.
The disadvantage is that they have a pretty slow refresh time and don't handle moving images well, so fast tuning or an s-meter may not work well.
jjpurdum