From 56d4d6f3930ec5e28a0767149b2ca4b03b89a5f5 Mon Sep 17 00:00:00 2001
From: Anders Hoglund <AndWho@gmail.com>
Date: Mon, 19 Sep 2016 10:20:36 +0200
Subject: [PATCH] REVO. Added support for Beeper on PB4. Used by AirbotF4 and
 Flip32F4. LED1 disabled and beeper port inverted.

---
 src/main/target/REVO/target.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/target/REVO/target.h b/src/main/target/REVO/target.h
index b697c887f..e4fddd092 100644
--- a/src/main/target/REVO/target.h
+++ b/src/main/target/REVO/target.h
@@ -27,8 +27,12 @@
 #endif
 
 #define LED0                    PB5
-#define LED1                    PB4
+// Disable LED1, conflicts with AirbotF4/Flip32F4 beeper
+//#define LED1                    PB4
+
 #define BEEPER                  PB4
+#define BEEPER_INVERTED
+
 #define INVERTER                PC0 // PC0 used as inverter select GPIO
 #define INVERTER_USART          USART1