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add CMakeList.txt of components add CMake build for example(aws_iot_demo,check_pedestrian_flow,empty_project,esp32_azure_iot_kit,eth2wifi,hmi,lowpower_evb,oled_screen_module,touch_pad_evb) add cmake support for ulp co-processor add CMake build CI update lvgl ugfx CMake update example README.md update solution README.md add CMakeLists.txt for unit-test-app update .gitlab-ci.yml |
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| test | ||
| CMakeLists.txt | ||
| component.mk | ||
| README.md | ||
| ulp_monitor.c | ||
Component: Ulp_monitor
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This component provides some apis for running simple ulp program in deep sleep.
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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
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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