Macchina Docs
  • Macchina.cc
  • Introduction
    • Disclaimer
  • Product Documentation
    • M2 Docs
      • Getting Started
      • Arduino IDE Quick Start
      • M2 Code libraries
        • CAN bus
        • Single-wire CAN
        • LIN
      • Next Steps with M2
      • Detailed Reference
        • Installation
        • Processor
        • Pin Mapping
        • Automotive Interfaces
        • Communication
          • M2 Bee-Compatible Add-ons
          • Cellular
        • Power
        • Storage/Memory
        • 12V IO
        • LEDS/Buttons
        • Enclosures
        • Breakout Board
        • Schematics and Source
      • Versions of M2
    • A0 Docs
      • Quick Start Guide
      • Firmware Reference
      • Hardware Reference
      • Projects
      • Troubleshooting
    • SuperB Docs
      • Getting Started
      • Hardware
      • Sending AT Commands
    • P1 Docs
      • Getting Started
      • Pin Mapping
      • Interfaces
      • Power Supply Note
    • OBD3way Docs
  • Projects
    • A0 Projects
      • A0 CAN Vehicle Data
      • A0 CAN Point to Point
      • A0 CAN Read VIN
      • Work-in-Progress A0 projects
    • M2 Projects
      • "OK Google, start my car!"
      • M2 and SavvyCAN, the Basics
      • Help Collect Voltage Data
      • Mini-Project Tutorials
        • M2 CAN Loopback
        • M2 CAN Point to Point
        • M2 SWCAN Point to Point
        • M2 VIN Extraction
    • P1 Projects
      • P1 CAN Vehicle Data
      • P1 CAN Loopback
    • Community Projects
    • Project Support
    • Other Resources
  • Support /contact us
    • Contact US / FAQ
    • Common Issues
    • Out of Stock/ Status
Powered by GitBook
On this page

Was this helpful?

Export as PDF
  1. Projects
  2. M2 Projects

Help Collect Voltage Data

How can we tell when the engine is actually turned on?

PreviousM2 and SavvyCAN, the BasicsNextMini-Project Tutorials

Last updated 1 year ago

Was this helpful?

Many people have done it before or known someone who's done it: leaving your headlights on and coming back to a dead battery. When developing electronic devices for cars a similar problem can occur with high power devices such as cellular modems. Therefore it would be advantageous to keep the high power devices off until the car is turned on, which raises the question, how can we tell when the car is turned on?

We've started a little project to collect voltage measurements before, during and after a car engine is running. Click here to learn more and contribute:

Here is a sample of the voltage levels during the 3 stages of starting a car:

GitHub - kenny-macchina/M2VoltageMonitorGitHub
Logo