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



{{ :buspirate.png?200|}}==== Hardware Setup ====

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

  * **Ground Connection:**
    - Connect sensor grounds to Bus Pirate ground.

==== Software Configuration ====

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

  * **Mode Selection:**
    - 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:**
    - Use 'd' for a single voltage reading or 'D' for continuous on your chosen pin (e.g., 'd1' for pin 1).

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

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

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

==== Considerations ====

  * **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.//