buspirate
Table of Contents
Using Bus Pirate 5 REV10 with Oil Pressure and Water Temperature Sensors
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.
buspirate.txt · Last modified: 2025/01/09 18:04 by admin