From 27eca42f48dd21f446dc97707cc2982a134b4dbd Mon Sep 17 00:00:00 2001
From: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Date: Wed, 29 May 2019 12:53:17 +0200
Subject: [PATCH 1/2] sys/arduino: Added millis()

Added arduino-compatilbe "unsigned long millis()"
---
 sys/arduino/base.cpp            | 5 +++++
 sys/arduino/include/arduino.hpp | 7 +++++++
 2 files changed, 12 insertions(+)

diff --git a/sys/arduino/base.cpp b/sys/arduino/base.cpp
index 6446ee04d1..f0ccf228d2 100644
--- a/sys/arduino/base.cpp
+++ b/sys/arduino/base.cpp
@@ -72,6 +72,11 @@ unsigned long micros()
     return xtimer_now_usec();
 }
 
+unsigned long millis()
+{
+    return xtimer_now_usec() / US_PER_MS;
+}
+
 int analogRead(int arduino_pin)
 {
     /*
diff --git a/sys/arduino/include/arduino.hpp b/sys/arduino/include/arduino.hpp
index 1d4fbcf657..109c43497f 100644
--- a/sys/arduino/include/arduino.hpp
+++ b/sys/arduino/include/arduino.hpp
@@ -103,6 +103,13 @@ void delayMicroseconds(unsigned long usec);
  */
 unsigned long micros();
 
+/**
+ * @brief   Returns the number of milliseconds since start
+ *
+ * @return value of milliseconds since start
+ */
+unsigned long millis();
+
 /**
  * @brief   Read the current value of the given analog pin
  *

From 8cff47304bc8f0ab6e8a8a452e86d930edac9729 Mon Sep 17 00:00:00 2001
From: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Date: Thu, 29 Aug 2019 13:36:36 +0200
Subject: [PATCH 2/2] sys/arduino: Make use of US_PER_MS in delay()

---
 sys/arduino/base.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/arduino/base.cpp b/sys/arduino/base.cpp
index f0ccf228d2..eccb7b5f16 100644
--- a/sys/arduino/base.cpp
+++ b/sys/arduino/base.cpp
@@ -59,7 +59,7 @@ int digitalRead(int pin)
 
 void delay(unsigned long msec)
 {
-    xtimer_usleep(1000 * msec);
+    xtimer_usleep(msec * US_PER_MS);
 }
 
 void delayMicroseconds(unsigned long usec)