Electronics 01
How Does a Load Cell Work? Strain Gauges and the HX711
A load cell turns 0.05% of strain into a 1 mV/V bridge signal. How strain gauges and the Wheatstone bridge work, and what an HX711 really resolves.
sensors
Electronics 02
NTC Thermistor Calculation: Beta vs Steinhart-Hart
Beta equation, Steinhart-Hart, divider resistor choice, ADC code to temperature and self-heating for a 10k NTC, checked against a real Vishay R/T table.