When it comes to LED matrixes, building one is just the first step. Then you have to decide what to display on it. [panjanek] ...

The SDI12 library code is released under the GNU Lesser Public License (LGPL 2.1) -- See LICENSE-examples.md file for details. Example Arduino sketches are released under the BSD 3-Clause License -- ...

The loss of abortion access comes months after Missouri voters in November overturned the state’s ban on the procedure.