SunTracker

Sun Tracker using ESP32 for automatic dual axis solar tracker or heliostat.

• Requires only geo location data (Latitude and Longitude coordinates) and Daylight Saving Time (DST) offset number for the location.

• Based on:

  • https://github.com/G6EJD/ESP32_2D_Sun_Tracker (for sun position) https://www.youtube.com/watch?v=R1tFOd0s6uk&t=2s
  • https://github.com/ruenahcmohr/EGMK (for motor movement)

• Uses built in arduino libraries.

• No photoresistors or accelerometer needed.

• Tracker results verified at https://www.suncalc.org/

• The National Renewable Energy Laboratory link to calculation details - https://www.nrel.gov/docs/fy08osti/34302.pdf

To Do:

• Implement code for inexpensive modified 28BYJ-48 12V Stepper Motor for prototype.

• Implement code for DC brushed motors control using RZ7899, BDR6133, TA6586 or BTS7960.

  • https://alexgyver.ru/lessons/dc-motors/
  • https://github.com/GyverLibs/GyverMotor
  • https://www.youtube.com/watch?v=tJYDV3FFCWQ&t=8s

• https://www.youtube.com/watch?v=yt_4_t4DEqo

• https://www.youtube.com/watch?v=uVJXskpkuEE

• http://faq.solarbotics.net/suneater/suneater.html