From 3156f03add5302429dbcf81fddafb2db76f7c0f7 Mon Sep 17 00:00:00 2001 From: Vanessa Ezekowitz Date: Sat, 20 Jun 2015 03:59:02 -0400 Subject: [PATCH] update README --- README.md | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/README.md b/README.md index 3d643d2..744cf12 100644 --- a/README.md +++ b/README.md @@ -27,4 +27,23 @@ character set, along with these messages: Any unrecognized word or symbol outside the 32-129 range is ignored. +The Decatron tubes respond to 0-9 and "off", same as the others, along with +the following actions: + +* "inc" will increment the tube's current number value. + If the value overflows from 9 back to 0, the tube will generate a "carry" + message. +* "dec" will decrement the current value. + If the value wraps from 0 back to 9, the tube will send out a "borrow" + message. +* "get" will query the current state of the tube, responding with a single + digit 0-9 or the word "off". + Tubes emit a small amount of light when displaying something. + +Nixies can only be mounted on the floor, while Decatrons can be mounted on a +wall (or a ceiling if so desired). + +A Decatron has a small grey spot on its internal insulator to mark the "0" +position. +