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BlinkNcount.ino
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BlinkNcount.ino
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/*
[BLUEPILL Pinout]
----------
BAT-| STM32F |-3V3
LED=PC13-| 103C |-GND
OSC32IN=PC14-| |-5V
OSC32OUT=PC15-| |-PB9(~)
PA0(~)-| |-PB8(~)
PA1(~)-| |-PB7(~)=SDA
PA2(~)-| |-PB6(~)=SCL
PA3(~)-| |-PB5
NSS=PA4-| |-PB4
SCK=PA5-| |-PB3
MISO=PA6(~)-| |-PA15
MOSI=PA7(~)-| |-PA12=USB+
PB0(~)-| |-PA11=USB-
PB1(~)-| |-PA10(~)=RX
PB10-| |-PA9(~)=TX
PB11-| |-PA8(~)
NRST-| |-PB15
3V3-| |-PB14
GND-| -- |-PB13
GND-| | | |-PB12
----------
*/
#define ledPin PC13
int n = 0;
void setup() {
pinMode(ledPin, OUTPUT);
// Initialize virtual COM over USB on Maple Mini
Serial.begin(); // BAUD has no effect on USB serial: placeholder for physical UART
// wait for serial monitor to be connected.
while (!Serial)
{
digitalWrite(ledPin, !digitalRead(ledPin)); // Turn the LED from off to on, or on to off
delay(100); // fast blink
}
Serial.println("Blink LED & count Demo");
}
void loop()
{
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
Serial.print("Loop #: ");
n++;
Serial.println(n);
delay(500); // wait
}