Release 2 is for WordClock-1 and WordClock-2 only.
Release 3 is for all word clocks including WordClock-1 and WordClock-2. The latest release fixes an obscure bug that may allow the clock to display the wrong time with unreliable Internet connections.
Version WC3018 is accurate to a fraction of a second referenced to WWV!
This update will force a factory reset of the parameters.
NTP and GPS for Heathkit GC-1000 Files
Using the wrong version will permanently crash the microcontroller. Release 6 works for all versions.
Release 6 is accurate to a fraction of a second referenced to WWV!
Release 6 corrects an obscure bug that may allow the clock to display the wrong time with weak or unreliable Internet connections. Hardware purchased before 12/19 will have to be returned for reprogramming. No charge for reprogramming, just return shipping.
Flash Download Tool for WordClock and GC-1000
Flash Download Tools (ESP8266 & ESP32) WordClock & GC-1000 NTP Only