MicroPython Library

The ElectrochemicalGasSensor module reads this board. It imports two helper files, ads1115.py and lmp91000.py, so both must be on the board as well. This board's chlorine cell has the preset SENSOR_CL2, and the board answers at 0x30 as shipped.

Not installed yet? Follow Quick Start before using the functionality pages.

Public sourceElectrochemical Gas Sensor MicroPython librarySource, examples and presets for the SGX cells it includes.Pinned reference: commit 623e1e6

Functionality

Each page shows one of the module's examples as the module has it and explains every function the example uses.

MicroPython exampleRead chlorineStart the board at 0x30 and print the concentration in ppm every 2.5 s.electrochemical-bridgeBoard.pyMicroPython exampleAveraged measurementAverage five readings with one function call.electrochemical-averagedMeasurement.pyMicroPython exampleZero calibrationSet the zero offset in clean air.electrochemical-calibrateSensor.pyMicroPython exampleCustom configurationWrite your own cell configuration and LMP91000 settings.electrochemical-customConfig.pyMicroPython exampleSingle sensorRead one sensor and print the concentration in ppb every 2.5 s.electrochemical-singleSensor.pyMicroPython exampleTwo sensorsCreate two sensor objects on one I2C bus and print both readings in ppb.electrochemical-twoSensors.py