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Use LED_BUILTIN so that it works w/o attaching external LED (#3452)

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* Use LED_BUILTIN so that it works w/o attaching external LED

* Use built-in LED

* Clarify text
This commit is contained in:
probonopd
2017-09-21 11:22:27 +02:00
committed by Ivan Grokhotkov
parent bdf2296a7d
commit ac626ad9f8
2 changed files with 8 additions and 10 deletions
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7
libraries/Ticker/examples/TickerParameter/TickerParameter.ino
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@ -8,8 +8,7 @@
This sample runs two tickers that both call one callback function,
but with different arguments.
An LED connected to GPIO1 will be pulsing. Use a built-in LED on ESP-01
or connect an external one to TXD on other boards.
The built-in LED will be pulsing.
*/
#include <Ticker.h>
@ -18,11 +17,11 @@ Ticker tickerSetHigh;
Ticker tickerSetLow;
void setPin(int state) {
digitalWrite(1, state);
digitalWrite(LED_BUILTIN, state);
}
void setup() {
pinMode(1, OUTPUT);
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(1, LOW);
// every 25 ms, call setPin(0)