OnStep replacement board for EQ 6 Pro

thingiverse

OnStep replacement board for EQ 6 Pro on base [Howard Dutton](https://onstep.groups.io/g/main/wiki/3860) 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](https://oshwlab.com/hujer.roman/onstep-for-eq6). Pinmaps is based on MaxESP3 but requires the following minor modifications: <pre> #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) </pre> MyConfig file included My others [OnStep](https://www.thingiverse.com/romanhujer/collections/onstep) things FreeCAD souce is [here](https://github.com/romanhujer/OnStep-Box)