https://github.com/kaiserdragon2/mailbox-monitoring

Sends an Signal to your MQTT-Broker if a letter has arrived.
https://github.com/kaiserdragon2/mailbox-monitoring

deepsleep esp esp-idf espressif mailbox mqtt mqtt-client wakeup

Last synced: about 2 months ago
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Sends an Signal to your MQTT-Broker if a letter has arrived.

• Host: GitHub
• URL: https://github.com/kaiserdragon2/mailbox-monitoring
• Owner: Kaiserdragon2
• Created: 2020-05-04T19:43:02.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2024-06-22T09:19:18.000Z (6 months ago)
• Last Synced: 2024-06-22T18:51:40.860Z (6 months ago)
• Topics: deepsleep, esp, esp-idf, espressif, mailbox, mqtt, mqtt-client, wakeup
• Language: C
• Homepage:
• Size: 12.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Mailbox monitoring

On startup the application connects to the configured wlan access point.

After that it connects to the specified MQTT-Broker and publishes a message.

Then the ESP32 enters deepsleep.

If GPIO 2 or GPIO 4 get an High signal the ESP32 wakes up from deepsleep

and sends a message to an MQTT-Broker. Which message is send depends on the GPIO

that triggers the wakeup process.

## Hardware

Connect a button and a pulldown resistor to each of the two GPIOs.