Arduino library for simple shared bus messaging, using JSON, UDP, and WiFi.
- Send short messages between devices on the same WiFi network.
- Uses callback functions to handle events.
- Uses JSON for serialising, so it is easy to debug and build clients in other languages.
- Simple interface.
- ArduinoJson
- Arduino WiFi hardware (ESP8266 or a WiFi shield)
#include <blipbus.h>
BlipBus bb = BlipBus();
void handle_read(BlipBusMessage bbm)
{
// Got a digitalio.read event!
int pin = bbm.get_int("pin");
// Send a new event to all devices on this WiFi network.
BlipBusMessage bbm_reply = BlipBusMessage("test.example");
bbm_reply.set("value", digitalRead(pin));
bb.send(bbm_reply);
}
void setup() {
// XXX Your Arduino WiFi connection code here. (and any headers it needs above)
// Register a handler for any events matching "digitalio.read"
bb.on("digitalio.read", handle_read);
// Use UDP port 3333 for sending events to the bus and listening for events.
bb.begin("example-device", 3333);
}
void loop() {
// Check for new events and call any matching handers.
bb.handle();
}Publish in the platform.io library list- Method chaining for one-line message sends.
- Add installation instructions for the modern Arduino IDE with the library lookup feature.
- Add reply() when you'd like to respond to only the sender of the last message.
- Make the size of the packet and JSON buffer configurable!
- Consider authentication. (as this is intended for inconsequential devices on a trusted network, this is a low priority for now)
- Consider allowing deeper access to the underlying JSON object for complicated structures.
- Consider using fnmatch(3) for shell-like glob matching on event names.
- Tests would be nice. :)
Contributions welcome!
See LICENSE file.