0.7.0-rc firmware. Strange Green light flash on Core?

Firmware
1

0.7.0-rc firmware. I’m getting strange green light about minute or hour. How do I stop getting green light each time?
Here’s my code.

const int DO_pin = D2;
const int AO_pin = A0;
int sound;
int led1 = D7;
 
void setup() {
  pinMode(DO_pin, INPUT);
  pinMode(led1, OUTPUT);

  Serial.begin(9600);
}
 
void loop() 

  sound = analogRead(AO_pin);
  Serial.print(digitalRead(DO_pin));
  Serial.print("-");
  Serial.println(analogRead(AO_pin));

// Detect Dog Bark.
if (sound > 150) {
digitalWrite(led1, HIGH);
Particle.publish("poop",NULL, 60, PRIVATE);
  }
if (sound < 150) {
digitalWrite(led1, LOW);
  }
  delay (50);
}

IFTTT

poop.PNG1118×785 51.2 KB

2

A0 is not as input defined in setup.
Are you sure that this code flashed before?

3

Oh good eyes. I didn’t see it…

pinMode(AO_pin, INPUT);

Thanks.

4

@ParticleIce, the pinMode() statement is not required as per the docs:

Since 0.5.3 Note: you do not need to set the pinMode() with analogRead().

There is also a risk that multiple Particle.publish() will be triggered, exceeding the 1-per-second rate limit. You can burst up to 4 in one second but it must be followed by a 4 second pause.

1 Like
5

@Postler, pinMode() doesn’t/shouldn’t be set for analogRead(). The function does some elaborate setting up which would be undone after read and redone before next read. To prevent that don’t set pinMode().

If you really want to set the correct pin mode, you’d call pinMode(A0, AN_INPUT) (which is not documented since it’s done implicitly anyway)

6

If any new users using this code. You might see strange Green light flash.

Hard Reset. You might see this.
$ particle flash --factory tinker

Opening DFU capable USB device...
ID 1d50:607f
Run-time device DFU version 011a
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuERROR, status = 10
dfuERROR, clearing status
Determining device status: Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
Last page at 0x00038183 is not writeable
state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 011a
Device returned transfer size 1024
DfuSe interface name: "Internal Flash  "
Downloading to address = 0x00020000, size = 98692

Error writing firmware...Invalid DFU suffix signature
A valid DFU suffix will be required in a future dfu-util release!!!
Last page at 0x00038183 is not writeable

Unplug USB and replug it.( Green light ) Press hard reset

particle flash --usb cc3000 (will blink magenta and eventually revert to yellow)
particle flash --usb tinker
now setup wifi credentials using particle serial wifi

Back to normal state.

1 Like