Hello,

I'm using your Lib on ESP8266 which is working well. Thanks.
I also use this (http://shiftregister.simsso.de/) library to use a shift register for expanting output pins.

Since I need to free up more pins on the ESP I would like to somehow control the select pins not directly but by the shift register but I got no Idea how since I didn't write code for quite some years.

Therefore could you tell me if/how I could use your code to call the shift register instead setting the pins directly?

Thanks for your help!

I get an error during compiling event with blank code like:

 #include <analogmuxdemux.h>

void setup() {
}
void loop() {
}


/home/dmtrs/sketchbook/libraries/analogmuxdemux/analogmuxdemux.cpp: In constructor 'AnalogDeMux::AnalogDeMux(uint8_t)':
/home/dmtrs/sketchbook/libraries/analogmuxdemux/analogmuxdemux.cpp:107:68: error: cannot call constructor 'AnalogDeMux::AnalogDeMux' directly [-fpermissive]
     AnalogDeMux::AnalogDeMux(AMDM_MS0, AMDM_MS1, AMDM_MS2, writepin);
                                                                ^
/home/dmtrs/sketchbook/libraries/analogmuxdemux/analogmuxdemux.cpp:107:68: note: for a function-style cast, remove the redundant '::AnalogDeMux'

Needs to have the ability to switch between mux and demux programmatically using the 4051 chip's ability to use input / output select

At the moment if you select a pin that is too high for the 4051's 3 bit resolution (>7) then it will just ignore the higher bits and you'll be left what whatever the 3 least significant bits are left over.

The fix will be to somehow fix the number of pins required (probably in the constructor) and from there it would then check for conditions higher than that value.

The question is what should it set it to or should it error and output to debug log or similar?

My question is regarding your library/ code for the 4051 IC...I have it all hooked up correctly and it is returning the pin numbers correctly through the serial monitor. But all of the Values are linked to my first readout (y0)...

I did adjust the number of sensors from 3 to 8 to fully use the chip, also changing the could it be something with that change? I have the code example below.

include "analogmuxdemux.h"

define READPIN 0 // What analog input on the arduino do you want?

// how many input pins are you going to use on the Muxer, this example uses three

define NO_PINS 8

// set up the Muxer ready to be used. Watch the order of S0, S1 and S2.
AnalogMux amux(2,3,4, READPIN);

void setup() {
Serial.begin(9600);
Serial.println("Starting 4051 analog reader...");
delay(1000);
}

void loop() {

// go through each pin on the muxer in turn and just print out it's position
// and it's reading then delay a bit and do the next one.
for (int pinno=0; pinno < NO_PINS; pinno++){

    amux.SelectPin(pinno); // choose the pin you want to send signal to off the DeMux
    uint16_t reading = amux.AnalogRead(0);
    Serial.print("Pin: ");
    Serial.print(pinno);
    Serial.print(" Value: ");
    Serial.print(reading);
    Serial.print(" ");
}

Serial.println("-----");
delay(5000);

}