Christoph Tack-
Power source
11/06/2021 at 15:44 • 0 commentsRecovery from Power bank
A €2.99 power bank from the Action shop is a great way to get cheap 18650 cells.
These cells are probably from Tianshi. No datasheet available.
![]()
-
Firmware
10/14/2021 at 18:18 • 0 commentsAdafruit has a very good guide with examples.
-
Alternatives
10/14/2021 at 18:05 • 0 commentsLED matrix
64x32 flexible LED matrix (or Adafruit 3826): much more graphical possibilities (see Adafruit website). But likely consumes too much power and might be fragile as well.
School bag lighting
Lighting up a school bag to make the child more visible in the dark.
