开云体育

I threw the code on Github at? this morning.

The code comes as "Examples" you can compile with Arduino IDE and flash to ESP32 devices.? Edit the examples to add your WiFi credentials before flashing.

The Examples do nothing more than make a secure?connection to a free public MQTT server (HiveMQ), and report "Hello World" with the device MAC address and a counting number that increments every few seconds.? Upon success, you get serial messages, and a green light or message (assuming an LED or LCD to display it).? Upon failure, the hardware watchdog timer will force a hard reboot of the device.? You simply provide a WiFi SSID/password or an Ethernet connection to your flashed ESP32 device.

The goal is that you'll edit it to make a secure?connection to your own TCP / UDP / MQTT port, and edit it to report your?data to your?infrastructure.

I've already worked out WiFi, Ethernet, the secure connection over TLS (at least for MQTT), and everything.? The reason I'm highlighting secure is that I've already done the work to make sure that security works... you can disable it if you like... but out of the gate, we're using a good working certificate-based solution you can replace the certificate with your own, and don't have to "add security" as an afterthought.

Unfortunately you probably won't get a secure connection directly to a Crestron processor without some extra work.? For me I just use physical security.? I get the secure connection to Crestron by having one more device in the middle (the private MQTT server on an industrial Raspberry Pi) that's physically located in the same rack as the Crestron processor.? Everything from the ESP32's to the MQTT server is all secured with certificates.? Some middleware I published elsewhere makes the direct TCP connection into Crestron and provides direct access to SIMPL symbols through a custom S+ module I wrote.? This is one of many possible ways to do it.? One day I may take on the project of writing a S# MQTT client for the processor.

A cheap non-secure shortcut that works well in many instances, and requires no MQTT, is to just allow the ESP32 devices to send UDP packets straight to a UDP SIMPL?block.? No security, no guaranteed reliability, but in practice, will work very well as a "proof of concept" with quality on par with pointing an IR remote at a TV to change a volume.

Although I've been using this code for quite a while and?am happy with?how it performs, I literally packaged it into a library and threw it on to GitHub this morning.? Thanks for your patience in advance if I need to make a couple tweaks resulting from the way I published it.

Mike