NodeJS serial to MQTT, MQTT to serial bidirectional gateway.
This is a NodeJS NetBeans project, tested with NodeJS v8.10.0 and Mosquitto (a MQTT protocol implementation from the Eclipse Foundation) on Ubuntu Linux 16.04.3 LTS x64.
This piece of software listens to messages coming from a local serial port and forwards everything it reads from it to an MQTT broker (on a dedicated output channel). It also listen to a dedicated input channel of this MQTT broker and forwards everything it reads from it to the local serial port. This project mainly depends on the NPM module "serialport" (v6.0.5) to handle the serial communication and on the NPM module "mqtt" (v2.15.3) to communicate over an MQTT broker.
In the "test" directory, I added a small Atom IDE project for Arduino which is a
program I used for testing the whole communication pipe. Use mosquitto_pub and
mosquitto_sub from the "moquitto-clients" APT package to publish or subscribe
easily on a MQTT instance.
Run sudo apt-get install build-essential to install the needed dependency in
order to eventually build the NPM module "serialport" if necessary.
Run npm install to install the dependencies of the project.
Gateway properties are set in the JSON file "setup.json".
Run npm start to launch the gateway on the local machine.
Tips:
- Use the
dmesgcommand to get the serial port ID on a Linux-like OS.
DONATION: As I share these sources for commercial use too, maybe you could consider sending me a reward (even a tiny one) to my Ethereum wallet at the address 0x1fEaa1E88203cc13ffE9BAe434385350bBf10868 If so, I would be forever grateful to you and motivated to keep up the good work for sure :oD Thanks in advance !
FEEDBACK: You like my work? It helps you? You plan to use/reuse/transform it? You have suggestions or questions about it? Just want to say "hi"? Let me know your feedbacks by mail to the address fabvalaaah@laposte.net
DISCLAIMER: I am not responsible in any way of any consequence of the usage of this piece of software. You are warned, use it at your own risks.