Operant Conditioning Chamber F09-23-RATMAZES Members Paul Stofko, EE (PM) Tyler Ferro, ECE Adam Watkins, CpE Dominic DiGregor, CpE Andy Thouvenot, ME David Coats, ME Client Dr. Eric Jacobs FTA Dr. Nazieh Botros

Outline Executive Summary (AW) Detailed Project Description Overall Subsystem Descriptions (TF) Subsystem Descriptions Summary (PS) Acknowledgements (DC)

Executive Summary Main Goals – Durability – Modularity – Automation Built for the Department of Psychology Can be implemented in 14 weeks Recommended solution costs $

Overall Description Operant chamber (Skinner box) Token Exchange

Options Studied Upgrade current chamber or fresh start – Chose to start fresh and design entire chamber FPGA, Data Acquisition Card or Single Board Computer – Chose Single Board Computer USB, Ethernet, or Wireless – Chose USB

Subsystem Functional Descriptions

Subsystem Description Soundproof box – Prevents majority of distractions to experiment – Mostly made of wood and soundproofing – Has multiple features Drawer Viewing hole Vetilation fan

Subsystem Description – Sound Attenuation To be filled later – Air Flow CFM – Drawer max load 100lb

Control Box Breaker Box Plug System Control Switch Box

Power Distribution 300W Power Supply Power Rails

Libraries Plug LED Lever Marble Dispenser Schedule CSV Clock

Arduino Located in the control box Also used OpenLog and Real-Time- Clock modules Controls modules Timestamps events in a.csv (comma separated value file)

Initial Experiment Based on Decision Diagram 4 main stages – Token Production – Exchange Production – Token Exchange – Food Production

Subsystem Description Chamber – Dimensions: 220 x 250 x 250 mm – Material: Steel and Stainless Steel – Modular: 27 interchangeable blade locations

Subsystem Description Marble Dispenser – Marble Size: ½” Steel Ball Bearing – Components: aluminum cylinder push/pull actuator PVC Piping System – Capacity: 200+ marble hopper

Subsystem Description Marble Receptacle – Size: 1 ½” diameter hole – Sensor: switch sensor – Materials: PVC

Subsystem Description Lever – ¾” extension – 10g activation LED – Tricolor LED Speaker – 20Hz-20kHz

Subsystem Description House Light – White LED – Cluster Milk Scoop – Solenoid –.1 cc

Module Electronics 3.3V LED Power 5V Logic Chips Power/Relay Switching 12V Actuator D[0] D[1] LED Control D[2] Levers/Sensors D[3] Actuator Toggle D[4] Actuator Enable

Indirect Control Purpose Description Examples: – LED Circuit – Relay – Speaker MOSFET Controller Decoder LED Controller Relay(s) 12V Actuator

Summary Purpose Function Results

Acknowledgements Dr. Jacobs Dr. Botros Course Instructors Dr. Pourboghrat Dr. Sczary Gladys Hounsinou Tim Attig Student Center Craft Shop and Wood Shop

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