diff --git a/README.md b/README.md
index 10dd1e6..b6f45b0 100644
--- a/README.md
+++ b/README.md
@@ -379,6 +379,7 @@ Here are complete firmwares to turn them into MQTT-controlled smart home nodes:
 * [mqtt-transformer](https://github.com/tg44/mqtt-transformer) - A simple service which consumes, transforms and periodically republish json messages on MQTT.
 * [node-mqtt-for-anki-overdrive](https://github.com/IBM-Cloud/node-mqtt-for-anki-overdrive) - Node.js Controller and MQTT API for Anki Overdrive.
 * [parrot-sample](https://github.com/IBM-Cloud/parrot-sample) - Sample code which uses MQTT to control a Parrot AR Drone.
+* [serial2mqtt](https://github.com/vortex314/serial2mqtt) - A Linux gateway to connect low-cost microcontrollers only with a serial port to MQTT.
 * [snowboy2mqtt](https://github.com/hobbyquaker/snowboy2mqtt) - Publish MQTT Messages on Snowboy Hotword Detection.
 * [speedtest2mqtt](https://github.com/hobbyquaker/speedtest2mqtt) - Run speedtest-cli and publish results via MQTT.
 * [unifi2mqtt](https://github.com/hobbyquaker/unifi2mqtt) - Publish connected clients from Ubiquiti Unifi to MQTT.