Using Bus Pirate 5 REV10 with Oil Pressure and Water Temperature Sensors

• Sensor Connection:
  1. Oil Pressure Sensor: Connect the sensor's output to one of the Bus Pirate's I/O pins (1-8). Ensure compatibility with voltage output. Use a voltage divider if necessary for higher voltage outputs.
  2. Water Temperature Sensor:
     • If analog, connect to an I/O pin.
     • If digital (e.g., DS18B20), connect to the 1-Wire data pin.

• Power Supply:
  1. Utilize the Bus Pirate's programmable power supply (1-5V) for sensor power. Ensure not to exceed sensor voltage limits.

• Ground Connection:
  1. Connect sensor grounds to Bus Pirate ground.

• Connect Bus Pirate to PC:
  1. Use a USB-C cable and open a terminal program (e.g., PuTTY) at 115200 bps.

• Mode Selection:
  1. Start in “HiZ” mode. Type 'm' for mode selection:
     • For analog sensors, remain in HiZ for ADC use.
     • For digital sensors like DS18B20, select “1-WIRE”.

• ADC Setup for Analog Sensors:
  1. Use 'd' for a single voltage reading or 'D' for continuous on your chosen pin (e.g., 'd1' for pin 1).

• Reading Data:
  1. Oil Pressure:
     • Read voltage, convert to pressure using sensor specs.
  2. Water Temperature:
     • If analog, read voltage.
     • If digital, follow protocol for data acquisition.

• Calibration and Conversion:
  1. Calibrate readings. Convert voltage to physical units based on sensor characteristics.

• Data Logging or Transmission:
  1. Manually log or script data transmission to Signal K server. Use Python with 'pyBusPirate' for automation.

• Accuracy: Check if 12-bit ADC resolution is adequate for your needs.
• Voltage Levels: Ensure sensor outputs match Bus Pirate capabilities or use protective measures.
• Software: Might need custom code for data handling and server integration.

Note: Specific steps might differ based on sensor types and models.