ESP32 Serial Interface Modernizes Old Equipment __EXCLUSIVE__
ESP32 Serial Interface Modernizes Old Equipment === https://urlin.us/2tvC0U
ESP32 Serial Interface Modernizes Old Equipment
Do you have some old equipment that still works fine but lacks modern features like wireless connectivity or web control If so, you might be interested in this project by Robin Cole, who used an ESP32 to create a serial interface that can communicate with legacy devices and add some new functionality.
The ESP32 is a popular microcontroller that has built-in Wi-Fi and Bluetooth capabilities, making it ideal for IoT projects. Cole used it to connect to an old oscilloscope via a serial port and send commands to control its settings and capture its output. He also created a web interface that allows him to remotely access the oscilloscope from any device with a browser.
The project uses the Arduino core for ESP32 and the AsyncTCP library to handle the web server and websocket communication. The web interface is based on Dash, a Python framework for creating interactive web applications. Cole also used the pySerial library to communicate with the oscilloscope from his computer.
The result is a modernized serial interface that can control and monitor old equipment from anywhere. Cole demonstrated his project with an oscilloscope, but it could be adapted to work with other devices that have a serial port, such as printers, scanners, CNC machines, etc. You can find more details and the source code on his Hackster.io page.
The ESP32 has three hardware supported serial interfaces[^1^] [^4^], known as UART0, UART1 and UART2. These interfaces can be mapped to any of the available pins on the ESP32, but some pins have default assignments. For example, UART0 is usually connected to the USB-to-UART bridge on most development boards[^2^]. The Arduino IDE supports using RX and TX pins for serial communication, but not RTS and CTS pins.
To connect the ESP32 to an old equipment via a serial port, you need to use a logic level converter to convert the 3.3V signals from the ESP32 to the 5V or 12V signals required by the equipment. You also need to make sure that the baud rate and the data format (number of bits, parity, stop bits) are compatible between the ESP32 and the equipment. You can use the Serial.begin() function to configure these parameters on the ESP32[^2^].
Once the connection is established, you can use the Serial.write() and Serial.read() functions to send and receive data between the ESP32 and the equipment. You can also use the Serial.available() function to check if there is any data waiting in the buffer. You can also use the Serial Monitor tool in the Arduino IDE to debug and monitor the serial communication[^3^]. aa16f39245