run out of nodeMcu esp8266 pin

hello..im relatively new to arduino

i want to ask.. what should I do if I run out of pin in nodeMCU ? i need to connect lcd / dotmatrix but I have use all the pin available for relay and rfid .

please help me ......

kyukyu123:
i want to askā€¦ what should I do if I run out of pin in nodeMCU ? i need to connect lcd / dotmatrix but I have use all the pin available for relay and rfid .

You could use something like a MCP23017 to give you 16 extra I/O pins.
Use an LCD with an I2C connection to reduce the pins needed to drive it or use one of the other 3.3V compatible dot matrix displays that work over I2C.

Upgrade the ESP8266 to an ESP32 that has a few more pins.