CrownPiBot / CrownPyBot

A talking machine project based on a vintage 1980 Th. Bergmann Automatenbau Crown gambling machine, Raspberry Pi Zero W, OpenAI API and Google Cloud Text To Speech. If you want more information about the original machine, check Wolf's Sammler - Seite zu Bergmann -CROWN- und anderen Spielautomaten.

Requirements

• Raspberry Pi (Zero W or better)
• Up to date Raspbian OS installed
• Python 3
• Git
• An API key for OpenAI API
• "Credentials" for Google Text-to-Speech API

Setup

1. Clone the repository to your Raspberry Pi:

   git clone https://github.com/your_username/CrownPiBot.git

2. Install the required packages:

   pip install -r requirements.txt

3. Replace the placeholder API keys in config.py with your own API keys.

4. Run the program:

   python main.py

Autostart

• Run the bot at system startup as a service: https://medium.com/@benmorel/creating-a-linux-service-with-systemd-611b5c8b91d6

Optional

• Check this guide if you have a need for BT audio: https://gist.github.com/actuino/9548329d1bba6663a63886067af5e4cb

Roadmap / Tech tree

New Hardware

• Add PIR Sensor [WIP]
• Add Microphone
• Add RPI Camera
• Add LEDs, display or terminal

CrownPyBot RPi Project

• Change JSON to SQLite[✔️]
• Change OG Completions model to chat based GPT-4o [✔️]
• Develop entertaining self propelled machine loop [WIP]
• Add Telegram bot [WIP]
• Extend story telling capabilities
• Extend audio / scenario / content / props ...
• Web interface, weather, location, ...?

Machine Hardware Description and Control Plan

Components Overview

1. 220V Motor:

   • Function: Spin the wheels.
   • Control: 3x autobrakes (to be controlled by ESP32).

2. Spinning Wheel Photoresistors (3x):

   • Function: Detect the status of the spinning wheels.
   • Control: Analog inputs on ESP32.

3. 7-Segment Displays (3x LEFT, 4x RIGHT):

   • Function: Display numbers.
   • Control: Multiplexed control using GPIOs on ESP32, possibly using a 7-segment driver IC like MAX7219 for simplicity.

4. Bulbs/LEDs (10x LEFT, 10x RIGHT, 8x Central, SUPERCHANCE, SONDERSPIELE, Coin Entry):

   • Function: Indicate various statuses and game phases.
   • Control: GPIOs on ESP32.

5. Buttons (Risiko LEFT/RIGHT, START, STOP Center/Right, Pay Winning):

   • Function: User input.
   • Control: GPIOs on ESP32, with debouncing in software(?).

Power Considerations

1. WheelsMotor:

   • Voltage: 220V (via individual transformer)
   • Control: Relay control

2. LEDs:

   • Voltage: 24V
   • Power: 2W each (Total: ~100W, rarely fully lit)
   • Current: ~4.2A

3. Sound System:

   • Power: ~50W

4. Raspberry Pi 5:

   • Voltage: 5V
   • Current: 5A

5. ESP32:

   • Voltage: 3.3V
   • Current: 0.5A

6. Mobile Broadband Modem (Optional):

   • Voltage: 5V
   • Current: 1A

Power Budget

1. 24V Rail:

   • LEDs: ~100W (4.2A)
   • Sound System: Up to 60W (2.5A)(Perhaps would be better on 12V rail?)
   • Total: ~160W (6.7A)

2. 5V Rail:

   • Raspberry Pi: 25W (5A)
   • Mobile Modem: 5W (1A)
   • Total: 30W (6A)

3. 3.3V Rail:

   • ESP32: 1.65W (0.5A)