Pinterest Messages: Making Pinterest less one-sided. Published: Aug. 18, 2014, 11:55 a.m. By . Adrienne Erin; Sharing content and communicating with friends is a big part of what social media is ...

16 thoughts on “ Internet Connected E-Paper Message Board ” Victor says: September 25, 2020 at 10:48 pm You do not need a raspberry pi for this. Use a ...

You can scratch a message into a piece of paper with this invisible ink, and then take a match to the paper and let the ink burn, etching your message into the paper.