6. Problem Solving

This chapter should help you to fix problems which are occurring frequently.

6.1. Arduino

You cannot find the Node MCU?

Check if you can find the microcontroller in the Device Manager (press Windows and X) of your Laptop (COM Port).

Option 1: At the Device Manager look for a USB to Serial kind of device that seems to be broken (e.g., showing an exclamation mark; showing an USB2.0 device without specific name). Double click on it and head over to the Drivers tab. Click on Update Driver to search for updated driver software. Then, you should see the NodeMCU at your COM port.

Option 2: If you do not see the microcontroller you may need to install the drivers. You can download them here: https://github.com/nodemcu/nodemcu-devkit/tree/master/Drivers

Sources: https://medium.com/@cilliemalan/installing-nodemcu-drivers-on-windows-d9bffdbad52