diff --git a/app-misc/qmodmaster/additional-files/qmodmaster.rdef.in b/app-misc/qmodmaster/additional-files/qmodmaster.rdef.in
new file mode 100644
index 000000000..0b8ca7018
--- /dev/null
+++ b/app-misc/qmodmaster/additional-files/qmodmaster.rdef.in
@@ -0,0 +1,56 @@
+
+resource app_flags B_MULTIPLE_LAUNCH;
+
+resource app_version {
+	major  = @MAJOR@,
+	middle = @MIDDLE@,
+	minor  = @MINOR@,
+
+	variety = B_APPV_BETA,
+	internal = 0,
+	short_info = "A ModBus master application",
+	long_info = "@LONG_INFO@"
+};
+
+resource app_signature "@APP_SIGNATURE@";
+
+resource file_types message {
+	"types" = "application/x-modmaster"
+};
+
+resource vector_icon {
+	$"6E6369660C010100006A030100000533020006023A5D7039F8F5B9F8F53A5D70"
+	$"48A7854A84E100747474FF3E3D3D020016023C40A33251EBB251EB3C40A34958"
+	$"0048C23D00B0FF830200160336A44A3657D5B6718436C1404C164D4863FE005A"
+	$"38DCFF7E0200160336A44A3657D5B6718436C1404BB3B7494AFF005A38DCFF7E"
+	$"0200160336A44A3657D5B6718436C1404B3AD54A18FF005A38DCFF7E02001603"
+	$"36A44A3657D5B6718436C1404AC1F34A8C7F005A38DCFF7E039ABE5203409461"
+	$"0345806B140A07C73644C8B844C97A46CBBD46CC7F44CAFD42CA9B330A07C431"
+	$"4AC5B44AC6744CC8B84CC97A4AC7F848C797390A07C12B52C2AE52C36F54C5B4"
+	$"54C67452C4F250C491410A07BE2758BFA958C06B5AC2AE5AC36F58C1EE56C18C"
+	$"470607AA3F422A22433C4E5A32512F512F50304B2F4D30492E492C482D492C0A"
+	$"0422493C563C4E22430A043C565A385A323C4E0A043C565A385A323C4E0A0422"
+	$"493C563C4E22430607AA3F422A3931513A5A32512F512F50304B2F4D30492E49"
+	$"2C482D492C0608FAFAC970BCA2C7EFBE13C8B1BE70C851BE41C911BE9DC970BF"
+	$"82C970BF1AC970C05CC9D0C150CA92C096CAF2BE12CAF2BEECCAF2BDA9CA32BD"
+	$"00CA92BD2DC9D1BCD00608FAFAC970BCA2C7EFBE13C8B1BE70C851BE41C911BE"
+	$"9DC970BF82C970BF1AC970C05CC9D0C150CA92C096CAF2BE12CAF2BEECCAF2BD"
+	$"A9CA32BD00CA92BD2DC9D1BCD00608FAFAC66EBF834DC0F3C5AEC150C54EC122"
+	$"C60EC17DC66EC262C66EC1F9C66EC33CC6CEC430C78FC376C7EF43C7EFC1CDC7"
+	$"EFC08AC730BFDFC78FC00DC6CFBFB20608FAFAC66EBF834DC0F3C5AEC150C54E"
+	$"C122C60EC17DC66EC262C66EC1F9C66EC33CC6CEC430C78FC376C7EF43C7EFC1"
+	$"CDC7EFC08AC730BFDFC78FC00DC6CFBFB20608FAFAC36CC264C1EBC3D4C2ABC4"
+	$"30C24BC402C30BC45DC36CC542C36CC4DAC36CC61EC3CCC710C48CC6574DC3D3"
+	$"4DC4AC4DC36AC42CC2BFC48CC2EEC3CDC2910608FAFAC36CC264C1EBC3D4C2AB"
+	$"C430C24BC402C30BC45DC36CC542C36CC4DAC36CC61EC3CCC710C48CC6574DC3"
+	$"D34DC4AC4DC36AC42CC2BFC48CC2EEC3CDC2910608FAFAC06AC543BEE7C6B5BF"
+	$"A8C710BF49C6E3C009C73EC06AC823C06AC7BAC06AC8FEC0C8C9F0C18BC937C1"
+	$"EBC6B4C1EBC78DC1EBC64BC129C5A0C18BC5CEC0C9C5710608FAFAC06AC543BE"
+	$"E7C6B5BFA8C710BF49C6E3C009C73EC06AC823C06AC7BAC06AC8FEC0C8C9F0C1"
+	$"8BC937C1EBC6B4C1EBC78DC1EBC64BC129C5A0C18BC5CEC0C9C5710A0422432E"
+	$"3A47443C4E0A042E3A3931513A4744120A000100000A000101000A000102000A"
+	$"000103000A01030405061001178422040A020107000A030108000A0B0109000A"
+	$"01010A1001178322040A05010B000A01010C1001178322040A06010D000A0101"
+	$"0E1001178322040A07010F000A0101101001178322040A080111000A09011200"
+	$"0A0A011300"
+};
diff --git a/app-misc/qmodmaster/patches/qmodmaster-0.5.2.patchset b/app-misc/qmodmaster/patches/qmodmaster-0.5.2.patchset
new file mode 100644
index 000000000..a54e9b1d0
--- /dev/null
+++ b/app-misc/qmodmaster/patches/qmodmaster-0.5.2.patchset
@@ -0,0 +1,22 @@
+From 531f66945928b696f21f6c3fe8342d2b1359f0ba Mon Sep 17 00:00:00 2001
+From: mazbrili <mazbrili@yahoo.com>
+Date: Mon, 15 Mar 2021 10:37:18 +0700
+Subject: change  qModMaster.pro so it compileable on haiku
+
+
+diff --git a/qModMaster.pro b/qModMaster.pro
+index 3841d77..ab2f360 100644
+--- a/qModMaster.pro
++++ b/qModMaster.pro
+@@ -74,6 +74,8 @@ win32:DEFINES += _TTY_WIN_  WINVER=0x0501
+ 
+ win32:LIBS += -lsetupapi -lwsock32 -lws2_32
+ 
++haiku:LIBS += -lnetwork 
++
+ QMAKE_CXXFLAGS += -std=gnu++11
+ 
+ DEFINES += QS_LOG_LINE_NUMBERS     # automatically writes the file and line for each log message
+-- 
+2.30.0
+
diff --git a/app-misc/qmodmaster/qmodmaster-0.5.2.recipe b/app-misc/qmodmaster/qmodmaster-0.5.2.recipe
new file mode 100644
index 000000000..fdc0ba807
--- /dev/null
+++ b/app-misc/qmodmaster/qmodmaster-0.5.2.recipe
@@ -0,0 +1,82 @@
+SUMMARY="A ModBus master application"
+DESCRIPTION="A Qt-based graphical user interface that allows easy \
+communication with ModBus RTU and TCP slaves.
+
+Features:
+* ModBus RTU/TCP master
+* Monitor bus activity (raw data and PDU details)"
+COPYRIGHT="2012-2020 Elbar"
+HOMEPAGE="https://sourceforge.net/projects/qmodmaster/"
+LICENSE="GNU GPL v3"
+REVISION="1"
+SOURCE_URI="https://download.sourceforge.net/qmodmaster/qModMaster-code-$portVersion-3.zip"
+CHECKSUM_SHA256="1754581e3059f14c31c584aa7abe1f1a602d1814f293823272b1158bbc179b81"
+SOURCE_DIR="qModMaster-code-$portVersion-3"
+ADDITIONAL_FILES="qmodmaster.rdef.in"
+PATCHES=qmodmaster-$portVersion.patchset
+
+ARCHITECTURES="!x86_gcc2 x86 x86_64"
+if [ "$targetArchitecture" = x86_gcc2 ]; then
+	SECONDARY_ARCHITECTURES="x86"
+fi
+
+PROVIDES="
+	qmodmaster$secondaryArchSuffix = $portVersion
+	app:QModMaster = $portVersion
+	"
+REQUIRES="
+	haiku$secondaryArchSuffix
+	lib:libGL$secondaryArchSuffix
+	lib:libQt5Core$secondaryArchSuffix
+	lib:libQt5Gui$secondaryArchSuffix
+	lib:libQt5Network$secondaryArchSuffix
+	lib:libQt5Xml$secondaryArchSuffix
+	lib:libz$secondaryArchSuffix
+	"
+
+BUILD_REQUIRES="
+	haiku${secondaryArchSuffix}_devel
+	devel:libQt5Core$secondaryArchSuffix
+	devel:libQt5Gui$secondaryArchSuffix
+	devel:libQt5Network$secondaryArchSuffix
+	devel:libQt5Xml$secondaryArchSuffix
+	devel:libz$secondaryArchSuffix
+	"
+BUILD_PREREQUIRES="
+	cmd:gcc$secondaryArchSuffix
+	cmd:ld$secondaryArchSuffix
+	cmd:lrelease$secondaryArchSuffix >= 5
+	cmd:make
+	cmd:pkg_config$secondaryArchSuffix
+	cmd:qmake$secondaryArchSuffix >= 5
+	cmd:unzip
+	"
+
+BUILD()
+{
+	qmake
+	make $jobArgs
+}
+
+INSTALL()
+{
+	mkdir -p $appsDir/QModMaster
+	install -T ./qModMaster $appsDir/QModMaster/QModMaster
+	cp -rf Docs  $appsDir/QModMaster/
+	cp -rf ManModbus  $appsDir/QModMaster/
+	local APP_SIGNATURE="application/x-vnd.qmodmaster"
+	local MAJOR="`echo "$portVersion" | cut -d. -f1`"
+	local MIDDLE="`echo "$portVersion" | cut -d. -f2`"
+	local MINOR="`echo "$portVersion" | cut -d. -f3`"
+	local LONG_INFO="$SUMMARY"
+	sed \
+		-e "s|@APP_SIGNATURE@|$APP_SIGNATURE|" \
+		-e "s|@MAJOR@|$MAJOR|" \
+		-e "s|@MIDDLE@|$MIDDLE|" \
+		-e "s|@MINOR@|$MINOR|" \
+		-e "s|@LONG_INFO@|$LONG_INFO|" \
+		"$portDir"/additional-files/qmodmaster.rdef.in > qmodmaster.rdef
+
+	addResourcesToBinaries qmodmaster.rdef $appsDir/QModMaster/QModMaster
+	addAppDeskbarSymlink $appsDir/QModMaster/QModMaster
+}