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A 3-channel fully automated Dew Controller (DIY project) based on Arduino Nano for telescopes. For $48 or less.
(c) Copyright Robert Brown 2014-2025. All Rights Reserved.
Permission is granted for personal and Academic use only. Code or portions of code may not be copied or used without appropriate credit given to author.
A very popular project with over 48,000 downloads.
There is a new ESP32 WiFi version at https://sourceforge.net/projects/esp32-dew-controller/
The older...
...The library provides components to implement both a ModBus master and a Modbus slave, and is based on the Indy component set (both Indy 9 and 10 are supported)
De sourcecode of the project has been moved to GitHub!