You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
24 lines
927 B
24 lines
927 B
/*
|
|
ESP8266 Blink by Simon Peter
|
|
Blink the blue LED on the ESP-01 module
|
|
This example code is in the public domain
|
|
|
|
The blue LED on the ESP-01 module is connected to GPIO1
|
|
(which is also the TXD pin; so we cannot use Serial.print() at the same time)
|
|
|
|
Note that this sketch uses LED_BUILTIN to find the pin with the internal LED
|
|
*/
|
|
|
|
void setup() {
|
|
pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output
|
|
}
|
|
|
|
// the loop function runs over and over again forever
|
|
void loop() {
|
|
digitalWrite(LED_BUILTIN, LOW); // Turn the LED on (Note that LOW is the voltage level
|
|
// but actually the LED is on; this is because
|
|
// it is active low on the ESP-01)
|
|
delay(1000); // Wait for a second
|
|
digitalWrite(LED_BUILTIN, HIGH); // Turn the LED off by making the voltage HIGH
|
|
delay(2000); // Wait for two seconds (to demonstrate the active low LED)
|
|
}
|
|
|