Hello, I’m looking at what would be the best way to get bidirectional comms happening on a spark core. What have people used? What would you recommend?

@Gizmo , between a Spark and what else? Is there a master/slave relationship? What type of data needs to be transported? Do you need stateless communications or a full protocol?

@Gizmo Also what type of communication do you want? Wired, I2C, SPI, … Wireless (TCP/IP, UDP, Spark Variables, …) Then there are the other options of attaching another device 433Mhz, Bluetooth LE, … There are a TON of options.

@Gizmo , one very good option for M2M is to use MQTT . There is already a library ported for the Spark and topics in the Community you can search like this one: [image] [Submission] MQTT Library and Sample Hi all, I have been playing around with Nick O’leary’s PubSubClient for MQTT (Ard…

Hello, Yeah like MQTT. I read that post. Just wondering if anyone else is using anything else. As longs as the comms are bi directional and get around things like NAT, I’m keen to hear. Obviously the more “plumbing work” that been done the better.

M2M Communications whats best?

General

peekay123 December 12, 2014, 2:45pm 4

@Gizmo, one very good option for M2M is to use MQTT. There is already a library ported for the Spark and topics in the Community you can search like this one:

Topic		Replies	Views
MQTT Broker appropriated General	2	1634	November 19, 2014
Spark to Spark communication for simple digital input-output transmission Getting Started	3	1188	June 8, 2014
[Submission] MQTT Library and Sample Libraries	97	45508	January 30, 2020
MQTT or other local communication between devices Firmware argon	0	411	November 6, 2021
Integration to Existing Building Management Systems Firmware	2	2084	October 10, 2013

M2M Communications whats best?

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