diff --git a/.github/workflows/pyinstaller_windows.yml b/.github/workflows/pyinstaller_windows.yml
new file mode 100644
index 0000000..c5336f6
--- /dev/null
+++ b/.github/workflows/pyinstaller_windows.yml
@@ -0,0 +1,68 @@
+name: PyInstaller Windows
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  build:
+    runs-on: windows-latest
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Set up Python 3.8
+      uses: actions/setup-python@v2
+      with:
+        python-version: 3.8
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -U https://github.com/pyinstaller/pyinstaller/archive/develop.zip
+        pip install -r requirements.txt
+    - name: build with pyinstaller
+      run: |
+        pyinstaller px100.spec
+    - name: Build NSIS installer package
+      run: |
+        makensis -VERSION
+        makensis px100.nsi
+    - name: Upload installer artifact
+      uses: actions/upload-artifact@v2
+      with:
+        name: installer
+        path: Install*
+  release:
+    name: Upload Release Asset
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Download installer artifact
+        uses: actions/download-artifact@v2
+        with:
+          name: installer
+      - name: List files
+        run: |
+          ls -l
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.ref }}
+          release_name: Release ${{ github.ref }}
+          draft: false
+          prerelease: false
+      - name: Upload Release Asset
+        id: upload-release-asset
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: Install Battery tester PX100.exe
+          asset_name: Battery-Tester-PX100.exe
+          asset_content_type: application/exe
diff --git a/.gitignore b/.gitignore
index 3625a91..b1f45d0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -31,7 +31,6 @@ MANIFEST
 #  Usually these files are written by a python script from a template
 #  before PyInstaller builds the exe, so as to inject date/other infos into it.
 *.manifest
-*.spec
 
 # Installer logs
 pip-log.txt
diff --git a/px100.nsi b/px100.nsi
new file mode 100644
index 0000000..6d222f4
--- /dev/null
+++ b/px100.nsi
@@ -0,0 +1,67 @@
+/*
+Basic installer for battery tester
+*/
+
+!define NAME "Battery tester PX100"
+!define REGPATH_UNINSTSUBKEY "Software\Microsoft\Windows\CurrentVersion\Uninstall\${NAME}"
+Name "${NAME}"
+OutFile "Install ${NAME}.exe"
+Unicode True
+RequestExecutionLevel User ; We don't need UAC elevation
+InstallDir "" ; Don't set a default $InstDir so we can detect /D= and InstallDirRegKey
+InstallDirRegKey HKCU "${REGPATH_UNINSTSUBKEY}" "UninstallString"
+
+!include LogicLib.nsh
+!include WinCore.nsh
+!include Integration.nsh
+
+Page Directory
+Page InstFiles
+
+Uninstpage UninstConfirm
+Uninstpage InstFiles
+
+
+Function .onInit
+  SetShellVarContext Current
+
+  ${If} $InstDir == "" ; No /D= nor InstallDirRegKey?
+    GetKnownFolderPath $InstDir ${FOLDERID_UserProgramFiles} ; This folder only exists on Win7+
+    StrCmp $InstDir "" 0 +2 
+    StrCpy $InstDir "$LocalAppData\Programs" ; Fallback directory
+
+    StrCpy $InstDir "$InstDir\$(^Name)"
+  ${EndIf}
+FunctionEnd
+
+Function un.onInit
+  SetShellVarContext Current
+FunctionEnd
+
+Section "Program files (Required)"
+  SectionIn Ro
+
+  SetOutPath $InstDir
+  WriteUninstaller "$InstDir\Uninst.exe"
+  WriteRegStr HKCU "${REGPATH_UNINSTSUBKEY}" "DisplayName" "${NAME}"
+  WriteRegStr HKCU "${REGPATH_UNINSTSUBKEY}" "DisplayIcon" "$InstDir\MyApp.exe,0"
+  WriteRegStr HKCU "${REGPATH_UNINSTSUBKEY}" "UninstallString" '"$InstDir\Uninst.exe"'
+  WriteRegDWORD HKCU "${REGPATH_UNINSTSUBKEY}" "NoModify" 1
+  WriteRegDWORD HKCU "${REGPATH_UNINSTSUBKEY}" "NoRepair" 1
+
+  File /r dist\px100\*
+SectionEnd
+
+Section "Start Menu shortcut"
+  CreateShortcut "$SMPrograms\${NAME}.lnk" "$InstDir\px100.exe"
+SectionEnd
+
+Section -Uninstall
+  ${UnpinShortcut} "$SMPrograms\${NAME}.lnk"
+  Delete "$SMPrograms\${NAME}.lnk"
+
+  Delete "$InstDir\MyApp.exe"
+  Delete "$InstDir\Uninst.exe"
+  RMDir "$InstDir"
+  DeleteRegKey HKCU "${REGPATH_UNINSTSUBKEY}"
+SectionEnd
diff --git a/px100.spec b/px100.spec
new file mode 100644
index 0000000..d706cd7
--- /dev/null
+++ b/px100.spec
@@ -0,0 +1,37 @@
+# -*- mode: python ; coding: utf-8 -*-
+
+block_cipher = None
+
+
+a = Analysis(['main.py'],
+             pathex=['./'],
+             binaries=[],
+             datas=[('gui/*.ui', 'gui') ],
+             hiddenimports=['pyvisa_py','pyserial'],
+             hookspath=[],
+             runtime_hooks=[],
+             excludes=[],
+             win_no_prefer_redirects=False,
+             win_private_assemblies=False,
+             cipher=block_cipher,
+             noarchive=False)
+pyz = PYZ(a.pure, a.zipped_data,
+             cipher=block_cipher)
+exe = EXE(pyz,
+          a.scripts,
+          [],
+          exclude_binaries=True,
+          name='px100',
+          debug=False,
+          bootloader_ignore_signals=False,
+          strip=False,
+          upx=True,
+          console=True )
+coll = COLLECT(exe,
+               a.binaries,
+               a.zipfiles,
+               a.datas,
+               strip=False,
+               upx=True,
+               upx_exclude=[],
+               name='px100')