History

Chris 799407c6be Trying to recover from spurious ADC resets. Not successful. TODO: implement polling method instead of interrupts with setting up of ADC on each poll. If it is too lengthy to execute, then will try only setting up on detection of resets.		2026-05-05 23:29:56 +02:00
..
sensor	Fixed osr calculation. Added DC block. With OSR = 512, sps = 8k, however noise is higher with values swinging wildly	2026-05-04 00:45:29 +02:00
sensor_rms	Publishing directly to sensors from component (hub) loop. Appears to be aorund 4000sps. DC stable, but AC still fluctuating a lot. 20ms sample time. Will try loop sampling instead of ISR sampling next.	2026-05-03 00:06:23 +02:00
__init__.py	Trying to recover from spurious ADC resets. Not successful. TODO: implement polling method instead of interrupts with setting up of ADC on each poll. If it is too lengthy to execute, then will try only setting up on detection of resets.	2026-05-05 23:29:56 +02:00
ads131m08_defs.h	Fixed osr calculation. Added DC block. With OSR = 512, sps = 8k, however noise is higher with values swinging wildly	2026-05-04 00:45:29 +02:00
ads131m08.cpp	Trying to recover from spurious ADC resets. Not successful. TODO: implement polling method instead of interrupts with setting up of ADC on each poll. If it is too lengthy to execute, then will try only setting up on detection of resets.	2026-05-05 23:29:56 +02:00
ads131m08.h	Added backup ADC registers procedure. Fixed bug in the restore ADC registers procedure. Restore registers was added in previous commit.	2026-05-04 23:58:06 +02:00
git_errors.txt	adding to local git repo	2026-05-01 15:36:27 +02:00
README.md	adding to local git repo	2026-05-01 15:36:27 +02:00
uint_str.h	adding to local git repo	2026-05-01 15:36:27 +02:00

README.md

ESPHome components/ads131m08

This folder contains source code files and related resources for external ads131m08 component.

Example .yaml config

substitutions:
  ESP32_S3_SPI0_SCK: GPIO12
  ESP32_S3_SPI0_MISO: GPIO13
  ESP32_S3_SPI0_MOSI: GPIO11
  ADC_SYNC_RESET_PIN: GPIO21
  ADC_CS_PIN: GPIO41
  ADC_DRDY_PIN: GPIO42

external_components:
  - source:
      type: local
      path: components  # Path relative to this YAML file
    components: [ ads131m08 ]

spi:
  - id: spi_bus0
    clk_pin: ${ESP32_S3_SPI0_SCK}
    mosi_pin: ${ESP32_S3_SPI0_MOSI}
    miso_pin: ${ESP32_S3_SPI0_MISO}
    interface: hardware

ads131m08:
  id: highres_adc
  spi_id: spi_bus0
  cs_pin: ${ADC_CS_PIN}
  drdy_pin: ${ADC_DRDY_PIN}
  sync_reset_pin: ${ADC_SYNC_RESET_PIN}
  reference_voltage: 1.25
  data_rate: 10MHz
  clock_frequency: 8192kHz
  oversampling_ratio: 512

sensor:
  - platform: ads131m08
    ads131m08_id: highres_adc
    channel: 0
    id: ads_ch0
    gain: 1
    input_select: normal
    offset_calibration: 0
    gain_calibration: 0.986
    ac:
      name: "Channel 0 AC"
      id: ads_ch0_ac
    dc:
      name: "Channel 0 DC"
      id: ads_ch0_dc

  - platform: ads131m08
    ads131m08_id: highres_adc
    channel: 1
    id: ads_ch1
    gain: 1
    input_select: normal
    offset_calibration: 0
    gain_calibration: 0.986
    ac:
      name: "Channel 1 AC"
      id: ads_ch1_ac
      accuracy_decimals: 6
      state_class: measurement
      device_class: voltage
    dc:
      name: "Channel 1 DC"
      id: ads_ch1_dc
      accuracy_decimals: 6
      state_class: measurement
      device_class: voltage

For more information, visit the ESPHome documentation.