diff --git a/examples/Devices/Keyboardio/m100test-serial/Makefile b/examples/Devices/Keyboardio/m100test-serial/Makefile
new file mode 100644
index 00000000..19019b31
--- /dev/null
+++ b/examples/Devices/Keyboardio/m100test-serial/Makefile
@@ -0,0 +1,48 @@
+# This makefile for a Kaleidoscope sketch pulls in all the targets
+# required to build the example
+
+
+
+
+ifneq ($(KALEIDOSCOPE_DIR),)
+search_path += $(KALEIDOSCOPE_DIR)
+endif
+
+ifneq ($(ARDUINO_DIRECTORIES_USER),)
+search_path += $(ARDUINO_DIRECTORIES_USER)/hardware/keyboardio/avr/libraries/Kaleidoscope
+endif
+
+ifeq ($(shell uname -s),Darwin)
+search_path += $(HOME)/Documents/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope
+else
+search_path += $(HOME)/Arduino/hardware/keyboardio/avr/libraries/Kaleidoscope
+endif
+
+sketch_makefile := etc/makefiles/sketch.mk
+
+$(foreach candidate, $(search_path), $(if $(wildcard $(candidate)/$(sketch_makefile)), $(eval ks_dir ?= $(candidate))))
+
+ifneq ($(ks_dir),)
+
+$(info Using Kaleidoscope from $(ks_dir))
+
+export KALEIDOSCOPE_DIR := $(ks_dir)
+include $(ks_dir)/$(sketch_makefile)
+
+else
+
+$(info I can't find your Kaleidoscope installation.)
+$(info )
+$(info I tried looking in:)
+$(info )
+$(foreach candidate, $(search_path), $(info $(candidate)))
+$(info )
+$(info The easiest way to fix this is to set the 'KALEIDOSCOPE_DIR' environment)
+$(info variable to the location of your Kaleidoscope directory.)
+
+endif
+
+
+null-target:
+	$(info You should never see this message)
+	@:
diff --git a/examples/Devices/Keyboardio/m100test-serial/m100test-serial.ino b/examples/Devices/Keyboardio/m100test-serial/m100test-serial.ino
new file mode 100644
index 00000000..4efb89b5
--- /dev/null
+++ b/examples/Devices/Keyboardio/m100test-serial/m100test-serial.ino
@@ -0,0 +1,27 @@
+// -*- mode: c++ -*-
+
+#include <Arduino.h>
+#include <Kaleidoscope.h>
+#include <Kaleidoscope-Macros.h>
+
+KALEIDOSCOPE_INIT_PLUGINS(Macros);
+
+void setup() {
+  Kaleidoscope.setup();
+}
+
+void loop() {
+  auto s = Kaleidoscope.device().serialPort();
+
+  if (s.available()) {
+    uint8_t r = s.read();
+
+    if (r == '1') {
+      s.println("Hello");
+      Kaleidoscope.device().hid().keyboard().pressKey(Key_H);
+      Kaleidoscope.device().hid().keyboard().sendReport();
+      Kaleidoscope.device().hid().keyboard().releaseKey(Key_H);
+      Kaleidoscope.device().hid().keyboard().sendReport();
+    }
+  }
+}
diff --git a/examples/Devices/Keyboardio/m100test-serial/sketch.json b/examples/Devices/Keyboardio/m100test-serial/sketch.json
new file mode 100644
index 00000000..3fba2eeb
--- /dev/null
+++ b/examples/Devices/Keyboardio/m100test-serial/sketch.json
@@ -0,0 +1,6 @@
+{
+  "cpu": {
+    "fqbn": "keyboardio:STM32F1:keyboardio_model_100",
+    "port": ""
+  }
+}