From 1ab11a72b10829c351e2c9f69546247eed3321fe Mon Sep 17 00:00:00 2001
From: Peter Cai <peter@typeblog.net>
Date: Thu, 10 Jun 2021 13:01:01 +0800
Subject: [PATCH] add comment

---
 main.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/main.cpp b/main.cpp
index bbf2fe2..8550802 100644
--- a/main.cpp
+++ b/main.cpp
@@ -18,7 +18,10 @@ void handle_tick(unsigned long cur_micros) {
 }
 
 int main() {
+    // Arduino library initialization
+    // Needed for some functions to work (like micros)
     init();
+
     // Enable the motor drivers
     pinMode(8, OUTPUT);
     digitalWrite(8, LOW);