A visual of how having the S3's ULP coprocessor executing uses more power than just having the RTC timer running.

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  • ezDV

    A FreeDV device based on the ESP32.

    • Anyway, the photo is my oscilloscope connected to a tinyCurrent, which itself has 3.7V going through it to the battery header on the board I'm working on. Right now I'm having the ULP execute every 100ms to check the state of a button press, with it being held down for more than a second triggering booting the main processor. While I seem to measure in the ~45uA range with a multimeter, there are definitely peaks of multi-hundred uA while the ULP is running.

  • InfluxDB

    Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

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