Capacitive Liquid Level Sensing (4): Analog to Digital (1) скачать в хорошем качестве

Capacitive Liquid Level Sensing (4): Analog to Digital (1)

Fourth part, about measuring frequency and converting to a liquid level … ↓↓↓ Complete description, time index and links below ↓↓↓ In the third video we’ve build an RC oscillator around a Schmitt-trigger inverter, that changes it’s frequency with the capacitance of our sensor (link below). Now it’s time to measure that frequency with an MCU and output a liquid level. We start by measuring the frequency of our oscillator with an Arduino Nano Every. Then we’re off on a tangent discussing the parasitic effects of oscilloscope probes. Finally we convert the frequency into a liquid level using a little math. 00:00 Intro – from analog to digital 00:48 Frequency measurement – with an MCU 05:42 Parasitic effects – of oscilloscope probes (addendum) 11:11 Frequency vs liquid level – taking some sample data 14:37 Period to liquid level – some math (linear least squares) 21:59 Wrap-up – next time we’re using just a MCU, bye Tutorials    • Tutorials   Capacitive Liquid Level Sensing (1): Sensor Basics    • Capacitive Liquid Level Sensing (1): ...   Capacitive Liquid Level Sensing (2): Measuring Capacity (1)    • Capacitive Liquid Level Sensing (2): ...   Capacitive Liquid Level Sensing (3): Measuring Capacity (2)    • Capacitive Liquid Level Sensing (3): ...   Hall Effect Switches (e.g. RPM Measurement with AH3582 and Arduino)    • Hall Effect Switches (e.g. RPM Measur...   My code https://drive.google.com/drive/folder... #liquid #sensor #capacitance #capacity #capacitor #tutorials #tutorial #how-to #robertssmorgasbord