The MORSE CODE Clock is a simple side project inspired by a casual comment from Trevor, my brother-in-law, after the initial posting of the Time On Your Hands Clock. He asked that now I am working on a clock for the deaf, what about something to assist the blind?
Well, I have already built the Speaking Clock, so how about something else…
So here it is… The MORSE CODE Clock.
So at what time did I take the video?
The clock, built on a WeMos D1 board, tells the time, on demand, and every minute, by beeping out the Morse Code for each of the digits of the hours and minutes. In operation, the clock powers up, connects to the local WiFi and sends out a request to a time server for an NTP (Network Time Protocol) packet (similar to the Life Time Clock). The received packet contains an accurate timestamp which is converted to local time – with daylight savings time correction – and used to set an internal soft real-time clock. On each minute, the real-time clock is read and the time is “morsed” out. A button can be pressed at any time to have the clock sign out the time prefaced by the code “IT IS”.
The Morse Code complies with the following rules found here:
- All timings are defined as multiples of one dot length
- A dash is three times the length of a dot
- Each dot or dash has a short gap of silence after it (usually 1 dot length)
- Letters in a word have a slightly longer gap of silence between them (usually 3 dot lengths)
- Words have an even longer gap of silence between them (usually 7 dot lengths)
So, I hope you have a great – .. — . with it!