Serial Star, a 4 in 1 USB Serial and I2C Converter
https://www.electronics-lab.com/serial-star-4-1-usb-serial-i2c-converter/
Jesus Echavarria @ jechavarria.com has build a 4 in 1 USB Serial converter based on MCP2221A. This board is mainly a USB hub with 4 USB to serial converters. Is like the typical USB to TTL adapter but with one USB port you get up to 4 serial ports. Levels of every converter are selectable […]
A Quick Overview of the Eltima Virtual Serial Port Driver
https://www.electronics-lab.com/quick-overview-eltima-virtual-serial-port-driver/
If you have used some form of hardware especially those legacy ones or something like the Arduino and other embedded systems you must have come across the term Serial Port, FTDI chip, USB to Serial, or RS232 at some point. So what are those? Well, they mean the same thing – Serial Communication Serial Port […]
my-ssd1306 an HTML interface to SSD1306 OLED display
https://www.electronics-lab.com/ssd1306-html-interface-ssd1306-oled-display/
A board that transforms your SSD1306 OLED Display into an RS232 monitor with HTML built-in parser. Now live on kickstarter. My-SSD1306 allows you to connect any device equipped with RS232 to the I2C SSD1306 displays. My-ssd1306 board should be put between the RS232 source and the I2C SSD1306 target. Two series of connection pins are […]
Isolated Power Supply for RS485, RS422, RS232, SPI, I2C and Power LAN
https://www.electronics-lab.com/isolated-power-supply-rs485-rs422-rs232-spi-i2c-power-lan/
Mini Isolated Power Supply is designed for CAN, RS-485, RS-422, RS-232, SPI, I2C, Low-Power LAN applications. The power supply provides +/- 5.50 V DC symmetrical outputs with load current 500mA from 5V DC input. The project is built using SN6505A IC from Texas instruments. The SN6505A is a low-noise, low-EMI push-pull transformer driver, specifically designed […]
MAX232: The classic IC lives on since 1988
https://www.electronics-lab.com/max232-classic-ic-lives-since-1988/
by Len Sherman @ edn.com: The June 23, 1988 issue of EDN included a Maxim Design News insert where we asked “Who in their right mind would choose a computer interface standard that uses ±12V supplies, requires expensive connectors, works over a limited distance, is error prone, difficult to network, and has no current loop […]
Butchered USB TTL Serial Adaptor
https://www.electronics-lab.com/butchered-usb-ttl-serial-adaptor/
Aaron Brady writes: We popped open the case, and there were two main ICs, a Prolific 2303 (the USB to Serial IC) and a ADM3251E (the RS232 line level convertor). I tried to desolder this with no success, but Bas stepped in, cut the leads with a craft knife and ran the iron over the […]
Serial Port Communication in C#
https://www.electronics-lab.com/serial-port-communication-in-c/
Maurizio tipped us with his latest article on how to use Serial Port in C#. The article does cover the basic code needed to achieve serial communication. The serial port of the PC is a very important resource both in industrial environment and in home-made electronics, due to the wide popularity of the UART interface […]
Microcontrollers with USB interface are common, but…
https://www.electronics-lab.com/microcontrollers-with-usb-interface-are-common-but/
FTDI.FT-X series USB to serial bridges can be still reasonable option even for today. Microcontrollers with USB interface are common nowadays. Manufacturers provide source codes for USB device classes like CDC, HID, Mass storage and DFU. . Even in this case, programming USB communications may not be a trivial task. If it is only required […]
Serial Port Communication in Excel (VBA)
https://www.electronics-lab.com/serial-port-communication-in-excel-vba/
Maurizio @ dev.emcelettronica.com discuss how we can do serial communication in Excel environment. He writes: The purpose of this article is to demonstrate how you can perform serial port communication in the VBA (Visual Basic Applications – script editor included in any typical Microsoft Excel distribution) but without using the MSComm control or any other […]
Transparent ESP8266 WiFi-to-Serial Bridge
https://www.electronics-lab.com/transparent-esp8266-wifi-to-serial-bridge/
jeelabs @ github.com has written a firmware for ESP8266 that enables it to talk to RS232 of your mcu via WiFi and also programm your mcu via WiFi. He writes: This firmware connects an attached micro-controller to the internet using a ESP8266 Wifi module. It implements a number of features: transparent bridge between Wifi and […]