-
This component provides some apis for running simple ulp program in deep sleep.
-
A ulp_monitor component can provide:
- read adc values from register during deep sleep
- read temprature sensor value during deep sleep
- store the values in RTC slow memory
- set the sampling rate
- wake up the chip if the value exceeds the threshold
- wake up the chip if appointed numbers of value are sampled
-
Follow these steps to use ulp_monitor:
- make menuconfig: Component config -> ESP32-specific -> choose "Enable Ultra Low Power (ULP) Coprocessor"
- call iot_ulp_monitor_init() to set program address and data address
- call adc1_config_width() and adc1_config_channel_atten() to config adc channel
- call iot_ulp_add_adc_monitor() or(and) ulp_add_temperature_monitor() to add adc or temperature snesor sampling(they can be added at the same time and more than one adc channels can be added)
- call iot_ulp_monitor_start() to run the ulp program and set the measurement period
- call esp_deep_sleep_start() to enter deep sleep
ulp_monitor
Folders and files
| Name | Name | Last commit date | ||
|---|---|---|---|---|
parent directory.. | ||||