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Using the UART interface
5 June 2018
UART (universal asynchronous receiver/transmitter) is a communication interface used between two microcontrollers. Data signals are transferred using two lines, one for transmitting signals (Tx) and one for receiving signals (Rx).
The FTDI USB to TTL serial converter module
5 June 2018
The FTDI USB to TTL serial converter module is an UART (universal asynchronous receiver-transmitter) board used for TTL serial communication. It is a breakout board for the FTDI FT232R chip with an USB interface, can use 3.3 or 5 V DC and has Tx/Rx and other breakout points.
ESP8266 5V Wi-Fi relay switch modules
6 December 2017 | Updated 1 January 2018
As the the name implies, ESP8266 5V Wi-Fi relay switch modules are Wi-Fi enabled, relay power switches. The module includes a detachable ESP8266 micro-controller board. The main function of these boards are to be used as wireless power switches accessible from Smartphones.
Connecting the ESP-01 module to a breadboard and FTDI programmer
12 September 2017 | Updated 4 June 2018
When compared with some other microcontroller boards (e.g. the Arduinos), the ESP8266 is slightly more complex to hook up to a serial port for programming. This post will show how to connect the ESP-01 module to a breadboard and FTDI programmer for ‘flashing’ purposes.