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onstep-ramps-shield

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@philipreinken

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KiCad projectAll 8 files, ready to open in KiCad121 KB3D modelThe board with its parts, for an enclosure (GLB)5.9 MB
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README

onstep-ramps-shield

This is an add-on board for a RAMPSv1.4 (and some later versions) board, which carries a bit of additional hardware necessary for an OnStep telescope controller.

There are different ways to build an OnStep, including using a completely custom board, but I liked the modular approach and used an Arduino Mega in combination with a RAMPS shield. The custom boards of course offer places to fit connectors and such which the Arduino/RAMPS combination doesn't, so I'm trying to build this board to help with that.

At the moment, the board takes the following components:

  • RA motor connector, RJ12 6p6c
  • DEC motor connector, RJ12 6p6c
  • Focuser motor 1 connector, RJ12 6p6c
  • Focuser motor 2 connector, RJ12 6p6c
  • (Polar alignment scope illuminator connector, 3-Pin 3.5mm audio jack)
  • (PEC sensor connector, 3-Pin 3.5mm audio jack)
  • Buzzer
  • DS3231 RTC via I2C
  • BME280 environmental sensor via I2C
  • HC05 Bluetooth module via Serial

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