OnStep replacement board for EQ 6 Pro by RomanHujer 3d model
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OnStep replacement board for EQ 6 Pro  by RomanHujer

OnStep replacement board for EQ 6 Pro by RomanHujer

by Thingiverse
Last crawled date: 3 years ago
OnStep replacement board for EQ 6 Pro on base Howard Dutton project
Key properties:
Easy replacement of the original Synscan board (four screws and reconnect three wires)
Big USB B port
Bluetooth
Wi-Fi
Internal real time clock and PPS with battery backup
Port for polar scope illuminator
Three-channel controller for dew heaters or fans
DSLR timer
Weather sensor - temperature, pressure and humidity
Wiring diagram and PCB are on EasyEDA.
Pinmaps is based on MaxESP3 but requires the following minor modifications:

#define Aux7 36 // 36 is internal DS3132 PPS or 39 external (GPS) PPS
#define OneWirePin 15 // OneWire
#define ReticlePin 19 // Polar scope iluminator
#define TonePin 2 // Tone

// PEC Optional - not use now
#define PecPin 39
#define AnalogPecPin A3 // PEC Sense, analog or digital (GPIO39)

MyConfig file included
My others OnStep things
FreeCAD souce is here

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