LSON DAC Digital to Analog AD / DA Converter Module Board - Deep Blue
With 4-CH A/D input and 1-CH A/D output. A/D input channel 0: for external test; A/D input channel 1: one-way potentiometer can measure the rheostat partial pressure and connect an external test; A/D input channel 2: one-way thermistor can test the temperature and connect an external test; A/D input channel 3: one-way photoresistor can test the light intensity and connect an external test; D/A output channel 0: one-way LED display shows D/A output voltage through luminance.