I haven't developed on the Kindle ecosystem, but with old Nook devices I am able to set a screensaver, alarm, and put the device into deep sleep between refreshes. This changed my battery life from ~48 hours into 30+ days of battery life even with some old devices.
The "electric sign" app does this, which is where I referenced the code.
With trmnl, the image only refreshes every 10 mins so the device will set a ~9 minute alarm to wake the device right before it needs to load the next update.
The refresh period is also configurable so a slower refresh interval (e.g. every hour for less time-sensitive screens) yields larger battery savings
Not that I'm aware of, but there are some great projects on the XDA Forums and GitHub I was able to reference in order to make basic apps for Android 2.1.
For those on a budget, I highly recommend checking eBay for old e-ink readers. Many of them can be rooted and are by far the most affordable way to get e-ink (plus compute).
Yep. From the perspective of someone earlier in their career without all the "lived experience": Business books have helped me feel closer with (and better emphasize with) senior execs. I'm not necessarily trying to cut corners, but it helps in situations where I am expected to be a peer to folks who have been working much longer than I have.
Business books are definitely not a perfect substitute for lived experience or having a mentor, but they have certainly helped me.
The "electric sign" app does this, which is where I referenced the code.
With trmnl, the image only refreshes every 10 mins so the device will set a ~9 minute alarm to wake the device right before it needs to load the next update.
The refresh period is also configurable so a slower refresh interval (e.g. every hour for less time-sensitive screens) yields larger battery savings