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Sentry Controller (standalone) [Version 6]

Status: Never produced
Reason: Prototype

Notes:
Version 6 was another prototype that never went into production. It was the first controller to use a surface-mount ATMega328 and USB port.
The design left out a crystal/resonator, in following with the Version 5 design. This turned out to be an issue, as the SMD version of the ATMega328 had no viable internal resonator. The pictures show the greenwire remedy - added crystal and caps.
The SMD reset button was too large for its footprint, but still barely fit.
The MOSFET for the electric trigger functionality hung off the side of the board, which was impractical.





Replaces the Arduino + Sentry Shield combination with one simple, all-in-one solution, for a lower price.

  • Plug-in connections for the three servo motors: trigger, pan, and tilt.
  • Servo Power switch, with optional bypass solder points.
  • Supports an electric-type trigger, providing solder points for wires to the gun battery and the gun motor.
  • Standard 5.5mm power jack for servo power, with optional bypass solder points.
  • Provides solder points for wires to an optional 'disable plate' button and optional Reload Position switch.
  • Can handle up to 5A current before getting warm, for using high-torque and heavy-duty servos.
  • Status LED's for Power, Mode, Firing, and USB RX and TX.
  • 12 user-programmable digital I/O pins for your own expansions and prototyping (8 of these can also be used as analog inputs).
  • Supports USB 2.0 communication (with mini-B USB cable).
  • On-board ATMega328 processor pre-loaded with Project Sentry Gun code.
  • Fully compatible with Project Sentry Gun's code.
  • No soldering required.


       


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