From 32434aa8afd62ca512c3255c5672b239efce82f7 Mon Sep 17 00:00:00 2001
From: alanbjohnston <alan.b.johnston@gmail.com>
Date: Sat, 19 Dec 2020 11:43:41 -0500
Subject: [PATCH] merged Blink for STM32 and Pro Micro versions using
 Preprocessor Macros

---
 arduino/Blink.ino | 78 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 arduino/Blink.ino

diff --git a/arduino/Blink.ino b/arduino/Blink.ino
new file mode 100644
index 00000000..f1a57899
--- /dev/null
+++ b/arduino/Blink.ino
@@ -0,0 +1,78 @@
+/*
+  Blink
+  Turns on an LED on for one second, then off for one second, repeatedly.
+  Most Arduinos have an on-board LED you can control. On the Uno and
+  Leonardo, it is attached to digital pin 13. If you're unsure what
+  pin the on-board LED is connected to on your Arduino model, check
+  the documentation at http://arduino.cc
+  This example code is in the public domain.
+  modified 8 May 2014
+  by Scott Fitzgerald
+  
+  Modified by Roger Clark. www.rogerclark.net for Maple mini 25th April 2015 , where the LED is on PC13
+  
+ */
+
+ /* Pro Micro Test Code
+   by: Nathan Seidle
+   modified by: Jim Lindblom
+   SparkFun Electronics
+   date: September 16, 2013
+   license: Public Domain - please use this code however you'd like.
+   It's provided as a learning tool.
+   This code is provided to show how to control the SparkFun
+   ProMicro's TX and RX LEDs within a sketch. It also serves
+   to explain the difference between Serial.print() and
+   Serial1.print().
+*/
+
+int RXLED = 17;  // The RX LED has a defined Arduino pin
+// Note: The TX LED was not so lucky, we'll need to use pre-defined
+// macros (TXLED1, TXLED0) to control that.
+// (We could use the same macros for the RX LED too -- RXLED1,
+//  and RXLED0.)
+
+// the setup function runs once when you press reset or power the board
+void setup() {
+#if defined(ARDUINO_ARCH_STM32F0) || defined(ARDUINO_ARCH_STM32F1) || defined(ARDUINO_ARCH_STM32F3) || defined(ARDUINO_ARCH_STM32F4) || defined(ARDUINO_ARCH_STM32L4)  
+  // initialize digital pin PB1 as an output.
+  pinMode(PC13, OUTPUT);
+#endif
+
+#if defined __AVR_ATmega32U4__
+  pinMode(RXLED, OUTPUT);  // Set RX LED as an output
+  // TX LED is set as an output behind the scenes
+#endif
+
+  Serial.begin(9600);
+
+}
+
+// the loop function runs over and over again forever
+void loop() {
+#if defined(ARDUINO_ARCH_STM32F0) || defined(ARDUINO_ARCH_STM32F1) || defined(ARDUINO_ARCH_STM32F3) || defined(ARDUINO_ARCH_STM32F4) || defined(ARDUINO_ARCH_STM32L4)
+  digitalWrite(PC13, LOW);   // turn the LED on (HIGH is the voltage level)
+#endif
+
+#if defined __AVR_ATmega32U4__
+  digitalWrite(RXLED, LOW);   // set the RX LED ON
+  TXLED0; //TX LED is not tied to a normally controlled pin so a macro is needed, turn LED OFF
+#endif  
+
+  Serial.println("LED is on!");
+
+  delay(1000);              // wait for a second
+
+#if defined(ARDUINO_ARCH_STM32F0) || defined(ARDUINO_ARCH_STM32F1) || defined(ARDUINO_ARCH_STM32F3) || defined(ARDUINO_ARCH_STM32F4) || defined(ARDUINO_ARCH_STM32L4)
+  digitalWrite(PC13, HIGH);    // turn the LED off by making the voltage LOW
+#endif
+
+#if defined __AVR_ATmega32U4__  
+  digitalWrite(RXLED, HIGH);    // set the RX LED OFF
+  TXLED1; //TX LED macro to turn LED ON
+#endif  
+
+  Serial.println("LED is off!");
+
+  delay(1000);              // wait for a second
+}