/*
https:www.ti.com/lit/ds/symlink/txs0108e.pdf

This device is an 8-bit non-inverting level translator
that uses two separate configurable power-supply
rails. The A port tracks the VCCA pin supply voltage.
The VCCA pin accepts any supply voltage between 1.4
V and 3.6 V. The B port tracks the VCCB pin supply
voltage. The VCCB pin accepts any supply voltage
between 1.65 V and 5.5 V. Two input supply pins
allows for low Voltage bidirectional translation
between any of the 1.5 V, 1.8 V, 2.5 V, 3.3 V, and 5
V voltage nodes.
When the output-enable (OE) input is low, all outputs
are placed in the high-impedance (Hi-Z) state.
*/

void setup() 
{
  Serial.begin(115200);
  pinMode(7, OUTPUT);
  pinMode(A0, INPUT);
  pinMode(A1, INPUT);
  pinMode(A2, INPUT);
}

void loop() 
{
  delay(1000);

  float Vcca = 5 * (analogRead(A0) / 1024.0);
  float Vccb = 5 * (analogRead(A1) / 1024.0);

  Serial.print("Vcca: ");
  Serial.print(Vcca);
  Serial.print(", ");
  Serial.print("Vccb: ");
  Serial.print(Vccb);
  Serial.println();
  Serial.println();

  for (int i = 1; i < 9; ++i)
  {
    char* delim = i == 8 ? " " : ", ";
    float volts = 5 * (analogRead(A2) / 1024.0);

    Serial.print("A");
    Serial.print(i);
    Serial.print(": ");
    Serial.print(volts);
    Serial.print(delim);

    digitalWrite(7, HIGH);
    delay(1);
    digitalWrite(7, LOW);
    delay(50);
  }

  Serial.println();

  for (int i = 1; i < 9; ++i)
  {
    char* delim = i == 8 ? " " : ", ";
    float volts = 5 * (analogRead(A2) / 1024.0);

    Serial.print("B");
    Serial.print(i);
    Serial.print(": ");
    Serial.print(volts);
    Serial.print(delim);

    digitalWrite(7, HIGH);
    delay(1);
    digitalWrite(7, LOW);
    delay(50);
  }

  Serial.println();
  Serial.println();
  delay(4000);
}