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Connecting to PuffiMail via Hotspot

AP Mode Web Configuration

PuffiMail enters AP configuration mode in the following cases:

  • When first powered on and not yet configured
  • By short-pressing the button 4 times during the selection window
  • By pressing and holding the button for 10 seconds to restore factory settings

To trigger this interaction, press and hold the button for more than 2 seconds to wake the device and enter a 20-second selection window.


🔦 LED Behavior Summary

State LED Behavior Meaning
Button held > 2s 🔁 Fast blinking Device is awake and waiting for input (AP mode / Reset)
AP mode active 🌫 Breathing light Wi-Fi hotspot is running, web config page available
Deep sleep ⚫ Off Device is in low-power sleep mode

🧭 Available Button Actions

During fast blinking:

  • Short press 4 times → Enter AP mode
  • Long press 10 seconds → Perform factory reset and reboot
  • No input → Timeout after 20 seconds, return to deep sleep

💡 Even though a quick tap may wake the device, it is recommended to hold for >2 seconds to ensure it enters interaction mode.


puffimail config page


🛠 Configuration Steps

  1. Connect to the Wi-Fi network: Smartmailbox_Sender
    Password: 12345678

  2. Open your browser and visit: http://192.168.4.1

  3. Configure Wi-Fi and MQTT settings, measure and save baseline distance, or upload firmware via OTA.

Once configured and restarted, PuffiMail will automatically connect to your Wi-Fi and exit AP mode.