Arduino-ESP01 Basics

[PeteKnight]

If you really feel the need to use the 12 year old technology of an Arduino Uno/Nano/Mega linked to an ESP-01 as a WiFi modem (and incidentally the ESP-01is a faster, more powerful processor with more memory than either of these Arduinos) then you should read this…

Understanding hardware and software serial ports

I’m still seeing frequent posts, mostly from new members of the forum, who are confused about how to add WiFi or Bluetooth connectivity to devices like the Arduino Uno, Nano or Mega, or from people who are trying to use serial communication with some other type of peripheral. I thought I’d try to put together some guidance on how to do this properly. First things first though – if you’re using a device such as an Uno, Nano or Mega that doesn’t have built-in internet connectivity then you shoul…

In this day and age there are very few reasons why you shouldn’t throw the Arduino in the bin and use either a NodeMCU/Wemos D1 Mini or an ESP32 board rather than the Arduino-ESP-01 combination.

What is the use-case that requires you to use an Arduino + ESP-01 ?

Pete.