Sure,
I'm basically using the seesaw digital blink example code:
Code: Select all
/*
/*
* This example shows how to blink a pin on a seesaw.
* Attach the positive (longer lead) of the LED to pin 15 on the seesaw, and
* the negative lead of the LED to ground through a 1k ohm resistor.
*/
#include "Adafruit_seesaw.h"
Adafruit_seesaw ss;
void setup() {
Serial.begin(9600);
delay(5000);
if(!ss.begin(0x4c)){
Serial.println("ERROR!");
while(1);
}
else Serial.println("seesaw started");
ss.pinMode(15, OUTPUT);
pinMode(13,OUTPUT);
}
void loop() {
ss.digitalWrite(15, HIGH); // turn the LED on (HIGH is the voltage level)
digitalWrite(13,HIGH);
delay(1000); // wait for a second
ss.digitalWrite(15, LOW); // turn the LED off by making the voltage LOW
digitalWrite(13,LOW);
delay(1000);
}
}
So testing it again, things I noticed.
I add the delay(5000); to give myself enough time to start the serial window so I can see the SEESAW STARTED code.
1. Without the delay, if you don't see the SEESAW started because you open the serial window late, the seesaw board pin 15 does NOT toggle.
2. If you open the serial window BEFORE it serial prints SEESAW STARTED, the seesaw pin 15 operates as normal.
3. To confirm that the code is running the LOOP and not stuck initializing the seesaw with the serial window closed, I have it blink the pin 13 led. I also see that the red light on the seesaw blinks when it initializes properly. So I know that step works.
I'll post a picture of the circuit below off my phone, but the pins are as follows:
Feather M0 Pin Seesaw Pin
3V Vin
GND G
SCL 23
SDA 22
16 + 17 ->GND
15 ->open wire to hook to volt meter
open ground wire to hook to negative terminal of volt meter.
Picture posted in a minute.
