diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..5fb043e
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,23 @@
+name: ESP32 BLE Keyboard CI Build
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python and install PlatformIO
+        run: |
+          python3 -m pip install --upgrade platformio
+
+      - name: Build with PlatformIO
+        run: |
+          cd test/ci_build
+          platformio run
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..89cc49c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
diff --git a/README.md b/README.md
index eac0d4e..7616567 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,9 @@
 # ESP32 BLE Keyboard library
 
+![Build](https://github.com/tamegai-m/ESP32-BLE-Keyboard/actions/workflows/build.yml/badge.svg)
+
+Bluetooth HID Keyboard library for ESP32...
+
 This library allows you to make the ESP32 act as a Bluetooth Keyboard and control what it does.  
 You might also be interested in:
 - [ESP32-BLE-Mouse](https://github.com/T-vK/ESP32-BLE-Mouse)
diff --git a/test/ci_build/platformio.ini b/test/ci_build/platformio.ini
new file mode 100644
index 0000000..0ea476a
--- /dev/null
+++ b/test/ci_build/platformio.ini
@@ -0,0 +1,7 @@
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+lib_ldf_mode = deep+
+lib_extra_dirs = ../
+lib_deps = ESP32 BLE Keyboard
diff --git a/test/ci_build/src/main.cpp b/test/ci_build/src/main.cpp
new file mode 100644
index 0000000..6066358
--- /dev/null
+++ b/test/ci_build/src/main.cpp
@@ -0,0 +1,14 @@
+#include <Arduino.h>
+#include <BleKeyboard.h>
+
+BleKeyboard bleKeyboard("ESP32 Keyboard");
+
+void setup() {
+  bleKeyboard.begin();
+}
+
+void loop() {
+  if (bleKeyboard.isConnected()) {
+    bleKeyboard.print("Hello");
+  }
+}