m×coffee

Hardware

• M5Stack Core2 v1.1 - AliExpress
• M5Stack Official VH3.96 - 4Pin Transfer Module Unit - AliExpress
• WNK Pressure Sensor WNK80MA G-B-C3-3-P3 (gauge, 1% accuracy, 0-20bar, I2C, cable outlet, G1/8 male)- AliExpress
• G1/8 FFM Fitting Tee - AliExpress
• PTFE plumbing tape roll - see local store.

How to flash

1. Download the latest firmware.bin:

   • Visit the Releases page
   • Download firmware.bin from the assets

2. Flash using M5Burner:

   • Download M5Burner
   • Connect M5Stack Core2 via USB
   • Open M5Burner
   • Click "Browse" and select firmware.bin
   • Select your device's COM port
   • Click "Burn"

Troubleshooting

• Device not recognized?

  • Linux: Add user to dialout group

    sudo usermod -a -G dialout $USER
    # Log out and back in

  • Windows: Install CP210x USB driver

• Flash failed?

  1. Hold button A (leftmost)
  2. Press RST button (side)
  3. Release button A
  4. Retry flash