by Xukyo | 14 Jun 2021 | Tutorials
When you have a number of cards to flash with the same program, it can be interesting to flash the compiled BIN file directly into the ESP8266. This has two interests. It saves you time on uploading and it protects your source code if you share the program with...
by Xukyo | 17 May 2021 | Tutorials
The AC voltage variator is a module that allows to vary the power of an alternating current. It has the same use as a transistor in direct current. It can be used to vary the brightness of a lamp supplied with 220V or to vary the speed of a fan, for example. We will...
by Xukyo | 3 May 2021 | Tutorials
The EEPROM is an internal memory of the ESP8266 microcontroller which allows to keep in memory data after restarting the card. When working with microcontrollers, it is interesting to keep in memory data such as the identifier and the password of the Wifi. Material...
by Xukyo | 3 May 2021 | Tutorials
The RC522 RFID module is a smart card reader which, among other things, allows to activate a mechanism when the right card is presented to the reader. In this tutorial, we will see the management of an RC522 RFID module with a NodeMCU ESP8266 card. Prerequisite:...
by Xukyo | 3 May 2021 | Tutorials
The NodeMCU ESP8266 is a small microcontroller with a Wifi chip. It is possible to establish a communication between two ESP8266, when they are connected on the same network. In this tutorial, we will see a Master/Slave architecture, in which an ESP8266 will play the...
