Analogue Inputs
Eight (8) analogue inputs of 0v-5V at 10-bit resolution are provided. The conversion is performed when you send the
"Get Analogue Voltage" command 0x32 and the channel number. The resulting 16 bit integer will be transmitted back
in two bytes (high byte first), combine these for the result. The 10-bit conversion will be in the lower 10 bits of the 16
bit integer with the upper 6 bits being 0. There is a 5v supply available on the 3-pin terminal block between the
analogue inputs .
Examples
Example input - connecting a potentiometer
Connecting a potentiometer should be the simplest of
tasks, either end of the pot should be wired to the 5v and
0v respectively, the output pin of the pot is then wired into
the analogue (A) pin.
Representative Analogue Schematic
© Devantech Ltd 02/07/19
ETH8020 Documentation
3/17
