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Hello I want to connect an RS485 module to an esp8266 and read the data coming from the RS485 module and display it on a 2 * 16 LCD. What should my connections look like? And what code should I write for the esp8266 module that can read the data and display it on the lcd?
I also found this site but the connections and code are for Arduino Nano and do not work on ESP8266.
I have no experience with ESP8266 + RS485, but it looks reasonably straightforward. I had to Google stuff as well, and did find a few articles that may be helpful to get you started:
Note : a 3.3V and 5V difference may, or may not become a challenge. I guess that depends on the module. With certain circuits I did notice that feeding 3.3V logic to a circuit that expects 5V logic, at times may simply work without any conversion issues. This is then due to what voltage is defined as a logical 0 or 1. Seems to work for example with certain LED strips.
Assuming you're using a 2x16 serial display - either with or without I2C. This guide seems a reasonably clear guide for that purpose. Note: I2C is often faster, easier and uses less wires/pins.
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