From 0cf2e24b86dcf1f0ce113de3066271e62a1e41dc Mon Sep 17 00:00:00 2001
From: Michael <101.37584@germanynet.de>
Date: Sun, 26 Nov 2023 14:08:07 +0100
Subject: [PATCH 1/5] added paragraph "SUMD Notes" to serial protocols section

---
 docs/assets/images/sumd1.PNG      | Bin 0 -> 5256 bytes
 docs/assets/images/sumd2.PNG      | Bin 0 -> 3509 bytes
 docs/assets/images/sumd3.PNG      | Bin 0 -> 6551 bytes
 docs/software/serial-protocols.md |  28 ++++++++++++++++++++++++++++
 4 files changed, 28 insertions(+)
 create mode 100644 docs/assets/images/sumd1.PNG
 create mode 100644 docs/assets/images/sumd2.PNG
 create mode 100644 docs/assets/images/sumd3.PNG

diff --git a/docs/assets/images/sumd1.PNG b/docs/assets/images/sumd1.PNG
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diff --git a/docs/software/serial-protocols.md b/docs/software/serial-protocols.md
index 89d81327b..9faabbf3b 100644
--- a/docs/software/serial-protocols.md
+++ b/docs/software/serial-protocols.md
@@ -57,3 +57,31 @@ When connected to the receiver with the transmitter, enter the ExpressLRS Lua sc
 <figure markdown>
 <img class="center-img" src="../../assets/screenshots/receiver-serial.png" width="auto">
 </figure>
+
+## SUMD Notes
+
+SUMD is the Graupner HoTT bus protocol to transmit multiple channel data over a single serial line. It transports up to 16 full res channels at a rate of 100Hz and is mainly used to provide digital channel data to Flybarless Control Systems for helicopters and older Flight Controllers.
+
+As already stated many times in this manual ExpressLRS expects AUX1 (channel 5) to control the arm state. This may lead to a conflict using serial protocols like SUMD in conjunction with device having fixed channel assignments. To circumvent the problem SUMD implements a channel remapping by swapping channels 5 and 8 in its serial output:
+
+<figure markdown>
+<img class="center-img" src="../../assets/images/sumd1.png" width="auto">
+</figure>
+
+This opens the possibility to assign a linear output channel order for channels 1 to 7 using an appropriate OpenTX/EdgeTX mixer setup.
+
+Example: Microbeast flybarless controller without RPM governor
+
+Follow the Microbeast manual to setup the single line receiver mode.
+
+Microbeast SRXL/SUMD expected channel order for SRXL/SUMD:
+
+<figure markdown>
+<img class="center-img" src="../../assets/images/sumd2.png" width="auto">
+</figure>
+
+Required OpenTX/EdgeTX mixer setup to satisfy the Microbeast expected channel order:
+
+<figure markdown>
+<img class="center-img" src="../../assets/images/sumd3.png" width="auto">
+</figure>

From b20ffba4495f423c065b0a925950176e0cc93d52 Mon Sep 17 00:00:00 2001
From: Michael <101.37584@germanynet.de>
Date: Sun, 26 Nov 2023 16:12:33 +0100
Subject: [PATCH 2/5] rename .PNG to .png

---
 docs/assets/images/{sumd1.PNG => sumd1.pngx} | Bin
 docs/assets/images/{sumd2.PNG => sumd2.pngx} | Bin
 docs/assets/images/{sumd3.PNG => sumd3.pngx} | Bin
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename docs/assets/images/{sumd1.PNG => sumd1.pngx} (100%)
 rename docs/assets/images/{sumd2.PNG => sumd2.pngx} (100%)
 rename docs/assets/images/{sumd3.PNG => sumd3.pngx} (100%)

diff --git a/docs/assets/images/sumd1.PNG b/docs/assets/images/sumd1.pngx
similarity index 100%
rename from docs/assets/images/sumd1.PNG
rename to docs/assets/images/sumd1.pngx
diff --git a/docs/assets/images/sumd2.PNG b/docs/assets/images/sumd2.pngx
similarity index 100%
rename from docs/assets/images/sumd2.PNG
rename to docs/assets/images/sumd2.pngx
diff --git a/docs/assets/images/sumd3.PNG b/docs/assets/images/sumd3.pngx
similarity index 100%
rename from docs/assets/images/sumd3.PNG
rename to docs/assets/images/sumd3.pngx

From c3e6b05ea1b55fdf3e45eb900f597e50daebc20a Mon Sep 17 00:00:00 2001
From: Michael <101.37584@germanynet.de>
Date: Sun, 26 Nov 2023 16:13:26 +0100
Subject: [PATCH 3/5] rename .PNG to .png

---
 docs/assets/images/{sumd1.pngx => sumd1.png} | Bin
 docs/assets/images/{sumd2.pngx => sumd2.png} | Bin
 docs/assets/images/{sumd3.pngx => sumd3.png} | Bin
 3 files changed, 0 insertions(+), 0 deletions(-)
 rename docs/assets/images/{sumd1.pngx => sumd1.png} (100%)
 rename docs/assets/images/{sumd2.pngx => sumd2.png} (100%)
 rename docs/assets/images/{sumd3.pngx => sumd3.png} (100%)

diff --git a/docs/assets/images/sumd1.pngx b/docs/assets/images/sumd1.png
similarity index 100%
rename from docs/assets/images/sumd1.pngx
rename to docs/assets/images/sumd1.png
diff --git a/docs/assets/images/sumd2.pngx b/docs/assets/images/sumd2.png
similarity index 100%
rename from docs/assets/images/sumd2.pngx
rename to docs/assets/images/sumd2.png
diff --git a/docs/assets/images/sumd3.pngx b/docs/assets/images/sumd3.png
similarity index 100%
rename from docs/assets/images/sumd3.pngx
rename to docs/assets/images/sumd3.png

From c5c60ccaace71be0e0f89a4e6a37312b40a8b6f8 Mon Sep 17 00:00:00 2001
From: Michael <101.37584@germanynet.de>
Date: Sun, 26 Nov 2023 16:18:27 +0100
Subject: [PATCH 4/5] cleanup

---
 docs/software/serial-protocols.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/software/serial-protocols.md b/docs/software/serial-protocols.md
index 9faabbf3b..08f7c94b6 100644
--- a/docs/software/serial-protocols.md
+++ b/docs/software/serial-protocols.md
@@ -74,7 +74,7 @@ Example: Microbeast flybarless controller without RPM governor
 
 Follow the Microbeast manual to setup the single line receiver mode.
 
-Microbeast SRXL/SUMD expected channel order for SRXL/SUMD:
+Microbeast expected channel order for SRXL/SUMD:
 
 <figure markdown>
 <img class="center-img" src="../../assets/images/sumd2.png" width="auto">

From 21b851cbf0979ee5daeec5c99554f35efe3b25f3 Mon Sep 17 00:00:00 2001
From: Michael <101.37584@germanynet.de>
Date: Wed, 29 Nov 2023 13:30:34 +0100
Subject: [PATCH 5/5] made changes requested by @deadbytefpv

---
 docs/software/serial-protocols.md | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/docs/software/serial-protocols.md b/docs/software/serial-protocols.md
index 08f7c94b6..45be86670 100644
--- a/docs/software/serial-protocols.md
+++ b/docs/software/serial-protocols.md
@@ -60,9 +60,9 @@ When connected to the receiver with the transmitter, enter the ExpressLRS Lua sc
 
 ## SUMD Notes
 
-SUMD is the Graupner HoTT bus protocol to transmit multiple channel data over a single serial line. It transports up to 16 full res channels at a rate of 100Hz and is mainly used to provide digital channel data to Flybarless Control Systems for helicopters and older Flight Controllers.
+SUMD is the Graupner HoTT bus protocol used to transmit multiple channel data over a single serial line. It transports up to 16 full res channels at a rate of 100Hz and is mainly used to provide digital channel data to Flybarless Control Systems for helicopters and older Flight Controllers.
 
-As already stated many times in this manual ExpressLRS expects AUX1 (channel 5) to control the arm state. This may lead to a conflict using serial protocols like SUMD in conjunction with device having fixed channel assignments. To circumvent the problem SUMD implements a channel remapping by swapping channels 5 and 8 in its serial output:
+As already stated many times in this manual, ExpressLRS expects AUX1 (channel 5) to control the arm state. This may lead to a conflict using serial protocols like SUMD in conjunction with devices having fixed channel assignments. To circumvent the problem, SUMD implements a channel remapping by swapping channels 5 and 8 in its serial output:
 
 <figure markdown>
 <img class="center-img" src="../../assets/images/sumd1.png" width="auto">
@@ -70,9 +70,7 @@ As already stated many times in this manual ExpressLRS expects AUX1 (channel 5)
 
 This opens the possibility to assign a linear output channel order for channels 1 to 7 using an appropriate OpenTX/EdgeTX mixer setup.
 
-Example: Microbeast flybarless controller without RPM governor
-
-Follow the Microbeast manual to setup the single line receiver mode.
+Example: Microbeast flybarless controller without RPM governor. (Follow the Microbeast manual to setup the single line receiver mode.)
 
 Microbeast expected channel order for SRXL/SUMD: