It’s rare in 2023 for an instrument to be entirely analog ... the sensor is, and present it to the microcontroller in whatever range it accepts. [David] had exactly this problem with a pH ...

After all, the Arduino boards come with a host ... They feature analog pins for reading analog components (e.g., potentiometer, flex sensor, pH sensor), use a programming app available on major ...

The digital signal output to be detected (usually marked as DO in the module) is applied to D2 input of the Arduino. Analog output (marked as AO) from the module is not used here. Sensor-head of the ...