Advice on connecting ESP8266 NodeMCU Arduino

I have several stations with relays and sensors controlled by ESP8266, NodeMCU, and Arduino like boards. Has anyone linked to ignition for remote data collection and control?

How to get started?

How about ActiveMQ to integrate into Ignition over MQTT?

Hi…as per my knowledge while the HUZZAH ESP8266 breakout comes pre-programmed with NodeMCU’s Lua interpretter, you don’t have to use it! Instead, you can use the Arduino IDE which may be more familar. This will write directly to the firmware, erasing the NodeMCU firmware, so if you want to go back to Lua, use the flasher to re-install itIn order to upload code to the ESP8266 and use the serial console, you will need a USB to serial converter! Use either an FTDI cable or any console cable, you can use either 3V or 5V logic and power as there is level shifting on the RX pin.

multilayer pcb