PE43xx Library
Simple library for PE43xx Digital Step Attenuator family of chips. Should work with all PE43xx family but I don't have those for testing. Currently only tested with PE4302.
https://www.psemi.com/pdf/datasheets/pe4302ds.pdf https://www.psemi.com/pdf/datasheets/pe4312ds.pdf
https://www.psemi.com/pdf/datasheets/pe4306ds.pdf
Usage
<include PE43xx.h>
// Initialize our attenuator, pins are LE, DATA, CLOCK, Type. Currently only PE4302 is tested
PE43xx attenuator(A4,A5,A6,PE4302)
// just for the demo time keeping
unsigned long previousMillis = 0;
unsigned long interval = 500;
void setup() {
// initialize the attenuator, sets level to 0
attenuator.begin();
}
void loop() {
// drop the level every 500ms and then start over
unsigned long currentMillis = millis();
if (currentMillis - previousMillis >= interval) {
// different attenuator have different steps (usually either 1db or 0.5db)
// get the step from libabry (for now only supports PE4302 but this might change in the future)
level = level + attenuator.getStep();
// different chips have different max values (usually 31db or 31.5db)
// get the max from the library (for now only supports PE4302 but this might change in the future)
if(level > attenuator.getMax() ) {
level = 0;
}
// set the level
attenuator.setLevel(level)
}
}