Host MCU wake up by GPIO Pin
Posted: Sun Jul 03, 2022 2:53 pm
Hi,
How can I configure the ESP32 with AT commands that when it receives a MQTT message it wakes up from sleep and then wakes up the host MCU via GPIO pin?
Sequence
1. put ESP32 in light sleep
2. put host MCU into sleep
3. MQTT message is received by ESP32
4. ESP32 pulls GPIO pin x from high to LOW
5. host MCU wakes up
6. ESP32 sends message to host MCU
Best regards,
Eric
How can I configure the ESP32 with AT commands that when it receives a MQTT message it wakes up from sleep and then wakes up the host MCU via GPIO pin?
Sequence
1. put ESP32 in light sleep
2. put host MCU into sleep
3. MQTT message is received by ESP32
4. ESP32 pulls GPIO pin x from high to LOW
5. host MCU wakes up
6. ESP32 sends message to host MCU
Best regards,
Eric