MCP3008 I/O Expander¶
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Formal documentation of the mcp3008 sensor entry (parent, update_interval, number, etc.)
See Dallas sensor for reference model
The Microchip Technology Inc. MCP3008 devices are successive approximation 10-bit Analogto-Digital (A/D) converters with on-board sample and hold circuitry. Each pin will respond with a 0-1023 result depending on the voltage it is reading
Once configured, you can use any of the 8 pins as sensors for your projects.
# Example configuration entry mcp3008: cs_pin: D8 # Example config of sensors. # This is a NTCB3950 10K thermocoupler attached to pin 0 # of the MCP3008 with a 10K resistor as a voltage divider. # See `resistance` and `ntc` platorms for other options sensor: - platform: mcp3008 # Attached to pin 0 of the MCP3008. # The result will be a reading from 0-1023 update_interval: 1s id: freezer_temp_source number: 0 # pin number - platform: resistance id: freezer_resistance_sensor sensor: freezer_temp_source configuration: DOWNSTREAM resistor: 10kOhm - platform: ntc id: freezer_temp sensor: freezer_resistance_sensor calibration: b_constant: 3950 reference_temperature: 25°C reference_resistance: 10kOhm name: Freezer Temperature