From eee9c5b4176909a87e0f3cdc419f2ae06abe8b80 Mon Sep 17 00:00:00 2001
From: Philip A Reimer <antreimer@gmail.com>
Date: Wed, 26 May 2021 12:48:00 -0600
Subject: [PATCH 1/2] Add Arduino.h back

---
 src/libmodbus/modbus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/libmodbus/modbus.c b/src/libmodbus/modbus.c
index 2cdf985..acf5b10 100644
--- a/src/libmodbus/modbus.c
+++ b/src/libmodbus/modbus.c
@@ -19,6 +19,7 @@
 #include <unistd.h>
 #endif
 #ifdef ARDUINO
+#include <Arduino.h>
 
 #ifndef DEBUG
 #define printf(...) {}

From 8495ab5ca1df7e96b78fa921885e01826f3ec2c7 Mon Sep 17 00:00:00 2001
From: Philip A Reimer <antreimer@gmail.com>
Date: Thu, 27 May 2021 10:47:53 -0600
Subject: [PATCH 2/2] Update modbus.c

---
 src/libmodbus/modbus.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libmodbus/modbus.c b/src/libmodbus/modbus.c
index acf5b10..af3b240 100644
--- a/src/libmodbus/modbus.c
+++ b/src/libmodbus/modbus.c
@@ -19,7 +19,6 @@
 #include <unistd.h>
 #endif
 #ifdef ARDUINO
-#include <Arduino.h>
 
 #ifndef DEBUG
 #define printf(...) {}
@@ -51,6 +50,11 @@
 #define ENOTSUP 134
 #endif
 
+/* workaround for stm32duino delay and delayMicroseconds */
+#ifdef ARDUINO_ARCH_STM32
+#include <wiring_time.h>
+#endif
+
 #include "modbus.h"
 #include "modbus-private.h"