It is easy to connect up to four sensors with an analog output of 5V to an ADC of 3.3V
Multiple connector boards can be connected in series
The Altonalab Connector Board for ADC 3.3V can be used to connect up to four sensors with analog outputs ranging from 0 to 5V to analog inputs (ADC) that work in a range of 0 to 3.3V.
The board has two power supply connectors, allowing for many boards to be connected in a cascade.
The board has four groups of resistor dividers, each with 1.5k and 3.0k 1% resistors, which reduce the maximum sensor voltage of 5V to 3.3V.
The conversion formula is: Vout = Vin * (3000/(3000+1500)) = Vin * 0.666666.
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