diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6b73a28..13b8f2d 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -2,26 +2,49 @@ name: CI
 
 on:
   push:
-    branches: [ '**' ]
+    branches: ["**"]
   pull_request:
-    branches: [ '**' ]
+    branches: ["**"]
 
 jobs:
   build-application-windows:
     runs-on: windows-2019
     steps:
-    - uses: actions/checkout@v2
-    - uses: microsoft/setup-msbuild@v1.0.2
-    - uses: NuGet/setup-nuget@v1.0.5
-    - name: Restore Packages
-      run: nuget restore Programs/Serial_003/Miriam_Serial/Miriam.sln
-    - name: build
-      run: msbuild Programs/Serial_003/Miriam_Serial/Miriam.sln /p:Configuration=Release /p:Platform="Any CPU"
-    - name: Upload artifact
-      uses: actions/upload-artifact@v2
-      with:
-        name: miriam-application-windows
-        path: D:\a\Miriam\Miriam\Programs\Serial_003\Miriam_Serial\MiriamTests\bin\Release\Miriam_Serial.exe
+      - uses: actions/checkout@v2
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 0
+        run: mkdir artifact
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 1
+        run: mkdir artifact\miriam-arduino-firmware-source
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 2
+        run: mkdir artifact\miriam-arduino-firmware-source\Serial_003
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 3
+        run: copy .\Programs\Serial_003\Serial_003.ino .\artifact\miriam-arduino-firmware-source\Serial_003\
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 3.1
+        run: copy .\Programs\Serial_003\MyStatusLed.h .\artifact\miriam-arduino-firmware-source\Serial_003\
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 3.2
+        run: copy .\Programs\Serial_003\MyStatusLed.cpp .\artifact\miriam-arduino-firmware-source\Serial_003\
+      - name: Prepare copy of Arduino source to distribute with Windows EXE 4
+        run: copy .\Programs\README-arduino-firmware.md .\artifact\miriam-arduino-firmware-source\README.md
+      - name: Make Arduino library
+        uses: papeloto/action-zip@v1
+        with:
+          files: Programs\PID_v1
+          dest: artifact\miriam-arduino-firmware-source\PID_v1.zip
+      - uses: microsoft/setup-msbuild@v1.0.2
+      - uses: NuGet/setup-nuget@v1.0.5
+      - name: Restore Packages
+        run: nuget restore Programs/Serial_003/Miriam_Serial/Miriam.sln
+      - name: build
+        run: msbuild Programs/Serial_003/Miriam_Serial/Miriam.sln /p:Configuration=Release /p:Platform="Any CPU"
+      - name: copy Miriam executable
+        run: copy D:\a\Miriam\Miriam\Programs\Serial_003\Miriam_Serial\MiriamTests\bin\Release\Miriam_Serial.exe artifact\Miriam_Serial.exe
+      - name: Upload artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: miriam
+          path: |
+            artifact/miriam-arduino-firmware-source
+            artifact/Miriam_Serial.exe
 
   build-firmware:
     # Based on https://legion2.github.io/2020/03/27/from-arduino-builder-to-arduino-cli.html
diff --git a/.gitignore b/.gitignore
index 0db5b7e..f8bd18f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ Programs/Serial_003/.cells.tsv
 Programs/Serial_003/Miriam_Serial/MiriamTests/bin
 Programs/Serial_003/Miriam_Serial/MiriamTests/obj
 Programs/Serial_003/Miriam_Serial/TestResults
+miriam-arduino-firmware-source
diff --git a/Programs/README-arduino-firmware.md b/Programs/README-arduino-firmware.md
new file mode 100644
index 0000000..05b2263
--- /dev/null
+++ b/Programs/README-arduino-firmware.md
@@ -0,0 +1,21 @@
+# Arduino firmware for Miriam
+
+This requires the [Arduino software](https://www.arduino.cc/en/Guide/Windows).
+
+* `Serial_003` - this contains the source code ("sketch") for the Arduino
+  firmware in the file `Serial_003.ino`.
+* `PID_v1.zip` - this is a library for Arduino.
+
+## Installing
+
+1. The `PID_v1` library should be installed in the Arduino IDE [according to these
+instructions](https://www.arduino.cc/en/guide/libraries).
+
+2. In the Arduino IDE, go to "Tools > Board" then select `Arduino Mega or Mega
+   2560`.
+
+3. In the Arduino IDE, select the port to the Arduino device. Go to "Tools >
+   Port" then select the correct port, which depends on your computer.
+
+4. Then the sketch can then be uploaded using the IDE. [Here is a tutorial about
+   getting started with Arduino](https://www.arduino.cc/en/main/howto).
diff --git a/Programs/README.md b/Programs/README.md
index 398406c..5e7a7f8 100644
--- a/Programs/README.md
+++ b/Programs/README.md
@@ -16,10 +16,3 @@ You should have received a copy of the GNU General Public License along with thi
 Firmware is written with [Arduino IDE](https://www.arduino.cc/en/main/software) and the software with Visual Studio 2015 open community using C#.
 
 * Serial_003 is meant for communication between computer and Miriam via USB cable and string messages
-
-The following programs were removed (see original https://github.com/miroculus/Miriam/tree/master/Programs):
-
-* Wifi_003 is for interaction between controller and Miriam over the same wifi network
-* Wifi_004 webservice controls Miriam
-
-