The following situation: I am developing a system in which Particle Electrons will be used. However, the instance in the cloud is essentially not the Particle Cloud but it is a own MQTT broker. The whole product and device management of Particle is absolutely great, but I really do not need it. On the other hand, the data volume is critical. To achieve savings here, I would like to leave the connection to Particle Cloud completely outside. The only feature that I miss is the OTA flashing.
Now to my question: Is there a way, even without the Particle Cloud, to perform OTA updates. Preferably directly to the public IP address of the Electron. This schould be able to send via MQTT to my broker.
Or maybe someone else has other ideas.
Would be great to receive feedback regarding this.
Many thanks and best regards!