diff --git a/moduleinterface/README b/moduleinterface/README
new file mode 100644
index 0000000..a4932e5
--- /dev/null
+++ b/moduleinterface/README
@@ -0,0 +1,19 @@
+-------------------------------------------------------------------------------
+ModuleInterface protocol stacked on top of the PJON protocol.
+-------------------------------------------------------------------------------
+
+The ModuleInterface protocol allows for easy programming of IoT modules with 
+automatic synchronization of settings, inputs and outputs to/from a master, 
+including http and mqtt connectors for easy interoperability and cooperation 
+with other automation systems.
+It is stacked on top of the PJON protocol stack.
+
+This is a collection of example ModuleInterface communication using the PJON
+strategy PJDL. 
+
+ModuleInterface project: https://www.github.com/fredilarsen/moduleinterface/
+PJON project home page: https://www.pjon.org/
+
+PJON protocol and PJDL link layer specs:
+https://www.pjon.org/PJON-protocol-specification-v3.2.php
+https://www.pjon.org/PJDL-specification-v4.1.php
diff --git a/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-not-a-moduleinterface-packet.sr b/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-not-a-moduleinterface-packet.sr
new file mode 100644
index 0000000..e805f05
Binary files /dev/null and b/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-not-a-moduleinterface-packet.sr differ
diff --git a/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-startup-contract-exchange-plus-value-packets.sr b/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-startup-contract-exchange-plus-value-packets.sr
new file mode 100644
index 0000000..974c463
Binary files /dev/null and b/moduleinterface/pjon-pjdl/moduleinterface-pjon-pjdl-startup-contract-exchange-plus-value-packets.sr differ
diff --git a/pjon/pjdl/pjon-pjdl-long-preamble-and-ignored-noise-spikes.sr b/pjon/pjdl/pjon-pjdl-long-preamble-and-ignored-noise-spikes.sr
new file mode 100644
index 0000000..9a98527
Binary files /dev/null and b/pjon/pjdl/pjon-pjdl-long-preamble-and-ignored-noise-spikes.sr differ
diff --git a/pjon/pjdl/pjon-pjdl-long-preamble.sr b/pjon/pjdl/pjon-pjdl-long-preamble.sr
new file mode 100644
index 0000000..beff332
Binary files /dev/null and b/pjon/pjdl/pjon-pjdl-long-preamble.sr differ