2017-08-16, 11:59 AM
I'm sorry but I can't make a sense of this flood of information. I'm missing hard facts and the layout of the website with all the paragraphs that aren't related to the topic isn't very helpful either.
Besides I don't understand your IoT concept for small vessels like ours. Who needs Alexa on his boat? I know it's a matter of taste but my priorities for the RPi on the boat are first a bulletproof system and second a low energy consumption.
Why are you using a microcontroller to connect sensors, which can be attached to the RPi directly? You write about sparing wires but how do you want to power your microcontrollers, won't you need a cable shaft in any case?
Anyhow - I'm playing with esp8266 and esp32 as well and my approach would be mqtt to get the data from the esp to the pi. It's running mosquitto anyway. The data can be easily handled by node-red, nodejs, python, signalk, and so on. There are so many build in ways that I don't get why you wouldn't use it instead of the virtual serial port and php.
Besides I don't understand your IoT concept for small vessels like ours. Who needs Alexa on his boat? I know it's a matter of taste but my priorities for the RPi on the boat are first a bulletproof system and second a low energy consumption.
Why are you using a microcontroller to connect sensors, which can be attached to the RPi directly? You write about sparing wires but how do you want to power your microcontrollers, won't you need a cable shaft in any case?
Anyhow - I'm playing with esp8266 and esp32 as well and my approach would be mqtt to get the data from the esp to the pi. It's running mosquitto anyway. The data can be easily handled by node-red, nodejs, python, signalk, and so on. There are so many build in ways that I don't get why you wouldn't use it instead of the virtual serial port and php.