Im trying to write a sketch that will read a 4-bit switch input, then depending on what the switch value is, change another variable value and print that on the serial monitor.
The switch reading code and the serial code are working just find (not my own code!), but my use of If...Else If to do the conversion doesnt work - it just sets the variable 'MHZ' to 1 (first If...) regardless of what the read value is,
In my mind this should work but clearly it doesnt, either ive done something very silly or im just not getting how to do this, any thoughts?
// Test sketch for reading 4-bit switch, converting and sending to serial monitor
// Set up initial variables
byte dip1pins[] = {2,3,4,5};
void setup() {
// set up serial comms
Serial.begin(9600);
// set pins to inputs
for (int cnt1 = 0; cnt1 < sizeof(dip1pins); cnt1++)
{
pinMode(dip1pins[cnt1], INPUT_PULLUP);
}
}
void loop() {
// read pins, store each pin in assigned bit
byte val = 0;
byte MHZ = 0;
for (int cnt1 = 0; cnt1 < sizeof(dip1pins); cnt1++)
{
val |= (!digitalRead(dip1pins[cnt1])) << cnt1;
}
Serial.print("Value = ");
Serial.println(val);
if (val=8)
{
MHZ=1;
}
else if (val=1)
{
MHZ=2;
}
else if (val=9)
{
MHZ=3;
}
else if (val=5)
{
MHZ=4;
}
else if (val=13)
{
MHZ=5;
}
else if (val=3)
{
MHZ=6;
}
else if (val=11)
{
MHZ=7;
}
else if (val=7)
{
MHZ=8;
}
else if (val=15)
{
MHZ=9;
}
else
{
MHZ=0;
}
delay(1000);
Serial.print("MHZ = ");
Serial.println(MHZ);
}
