Crashing Espruino Pico

Hello everyone,

I’m looking for some help on my project. I had the idea of having switches in my gearstick and then a seven segment display show what gear I was in.

So I have a Pico with switches on B3, B4, B5, B7 and A8, they have a common positive 3.3 from the pin next to B3.

Gear - Active Switches
1 = B4 & A8
2 =B4 & B7
3 = A8
4 = B7
5 = B5 & A8
6 = B5 & B7
R = B3, B4 & A8

I then have the following pins linked to a single seven segment display:
A5 (a), A6 (b), A7 (c), B10 (d), B13 (e), B14 (f) and B15 (g).

The code I have below works when connected to my MacBook but when I disconnect it and then power it back up, it hangs on some of the switches. I can go through all the ‘gears’ and then it hangs on 6 or reverse.

I was hoping you kind people would help me out and let me know what I’m doing wrong.

function None() {
  digitalWrite(A5, 0);
  digitalWrite(A6, 0);
  digitalWrite(A7, 0);
  digitalWrite(B10, 0);
  digitalWrite(B13, 0);
  digitalWrite(B14, 0);
  digitalWrite(B15, 1);
}
function One() {
  digitalWrite(A5, 0);
  digitalWrite(A6, 1);
  digitalWrite(A7, 1);
  digitalWrite(B10, 0);
  digitalWrite(B13, 0);
  digitalWrite(B14, 0);
  digitalWrite(B15, 0);
}
function Two() {
  digitalWrite(A5, 1);
  digitalWrite(A6, 1);
  digitalWrite(A7, 0);
  digitalWrite(B10, 1);
  digitalWrite(B13, 1);
  digitalWrite(B14, 0);
  digitalWrite(B15, 1);
}
function Three() {
  digitalWrite(A5, 1);
  digitalWrite(A6, 1);
  digitalWrite(A7, 1);
  digitalWrite(B10, 1);
  digitalWrite(B13, 0);
  digitalWrite(B14, 0);
  digitalWrite(B15, 1);
}
function Four() {
  digitalWrite(A5, 0);
  digitalWrite(A6, 1);
  digitalWrite(A7, 1);
  digitalWrite(B10, 0);
  digitalWrite(B13, 0);
  digitalWrite(B14, 1);
  digitalWrite(B15, 1);
}
function Five() {
  digitalWrite(A5, 1);
  digitalWrite(A6, 0);
  digitalWrite(A7, 1);
  digitalWrite(B10, 1);
  digitalWrite(B13, 0);
  digitalWrite(B14, 1);
  digitalWrite(B15, 1);
}
function Six() {
  digitalWrite(A5, 1);
  digitalWrite(A6, 0);
  digitalWrite(A7, 1);
  digitalWrite(B10, 1);
  digitalWrite(B13, 1);
  digitalWrite(B14, 1);
  digitalWrite(B15, 1);
}
function Reverse() {
  digitalWrite(A5, 0);
  digitalWrite(A6, 0);
  digitalWrite(A7, 0);
  digitalWrite(B10, 0);
  digitalWrite(B13, 1);
  digitalWrite(B14, 0);
  digitalWrite(B15, 1);
}
function onInit(){
  
  // Set the pins for input
  pinMode(A8, "input_pulldown");
  pinMode(B7, "input_pulldown");
  pinMode(B5, "input_pulldown");
  pinMode(B4, "input_pulldown");
  pinMode(B3, "input_pulldown");
  
  // Test the display by going through the numbers
  None();
  var t=getTime()+1;while(getTime()<t);
  digitalWrite(B15, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B14, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A5, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A6, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A7, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B10, 1);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B13, 1);
  
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B15, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B14, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A5, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A6, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(A7, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B10, 0);
  t=getTime()+0.1;while(getTime()<t);
  digitalWrite(B13, 0);
  t=getTime()+0.1;while(getTime()<t);
  
  One();
  t=getTime()+0.25;while(getTime()<t);
  Two();
  t=getTime()+0.25;while(getTime()<t);
  Three();
  t=getTime()+0.25;while(getTime()<t);
  Four();
  t=getTime()+0.25;while(getTime()<t);
  Five();
  t=getTime()+0.25;while(getTime()<t);
  Six();
  t=getTime()+0.25;while(getTime()<t);
  Reverse();
  t=getTime()+0.25;while(getTime()<t);
  None();
}


setWatch(function () {if (digitalRead(A8)) {
    if (digitalRead(B5)) {
      print('5');
      Five();
    }
    if (digitalRead(B4) && digitalRead(B3)) {
      print('R');
      Reverse();
    } else if (digitalRead(B4) && digitalRead(B3) == false) {
      print('1');
      One();
    }
    if (digitalRead(B3)
      == false && digitalRead(B4)
      == false && digitalRead(B5)
      == false) {
      print('3');
      Three();
    }
  } else {
    print('Npoe');
    None();
  }}, A8, { repeat:true, debounce:10 });


setWatch(function () {if (digitalRead(B7)) {
    if (digitalRead(B4)) {
      print('2');
      Two();
    } else if (digitalRead(B5)) {
      print('6');
      Six();
    } else {
      print('4');
      Four();
    }
  } else {
    print('Npoe');
    None();
  }}, B7, { repeat:true, debounce:10 });

Ahh, I think you might have hit the 'console on Serial1' issue. Basically when you disconnect from USB the console moves onto Serial1 (which is pins B6 and B7) by default - and you're using B7.

So you have two options:

• Add USB.setConsole(1) right at the top of onInit, which should force the console onto USB forever, so it never messes with your pins.
  
• Move B7 to some other pin
  
  

I reckon that should sort it out.

Thanks for your reply Gordon, I’ll give the USB.setConsole(1) a try. This has been driving me nuts!!

Thank you Gordon for your help, this worked.