Using an ESP-01 to WiFi-enable an Arduino Nano

[dynamicdave]

Has anyone any useful links on how to WiFi-enable an Arduino Nano with an ESP-01 running ESP Easy ??
I've looked around on the web and found most documents are either "old" or don't specifically mention using ESP Easy.

My objective is to collect information from a remote weather station and process it using Node-RED running on a Raspberry Pi.

So far I've got two Nanos (over 200m apart) talking to each other using nRF24L01+ radio devices.
The next step I'd like to do is to send data, via MQTT, to my Node-RED server.

Any suggestions or pointers to useful documents would be "greatly" appreciated.

[TD-er]

How do you want to connect both boards?
Via I2C (slave on the Nano, master on the ESP) or UART?
Maybe the last one is the simplest one and then you could use the P087_SerialProxy, which essentially does echo the received string on the selected serial port to a MQTT controller.
That may be the best fit for your application.

[dynamicdave]

Where would I locate the P087_SerialProxy plugin ?

[TD-er]

You probably have to build it yourself, unless it may be included in the 'custom' build?