The PS/2 connector, manufactured by Arduino (Part ID: Connector), is a 6-pin mini-DIN connector used primarily for connecting keyboards and mice to computers. This connector was widely used in the 1990s and early 2000s before being largely replaced by USB interfaces. Despite its decline in mainstream use, the PS/2 connector remains relevant in certain applications, such as legacy systems, industrial equipment, and specific embedded systems.
Parameter | Value |
---|---|
Voltage | 5V DC |
Current | 275 mA (maximum) |
Power Rating | 1.375 W (maximum) |
Connector Type | 6-pin mini-DIN |
Manufacturer | Arduino |
Part ID | Connector |
Pin Number | Name | Description |
---|---|---|
1 | Data | Serial data line |
2 | Not Used | Not connected |
3 | Ground | Ground |
4 | Vcc | +5V power supply |
5 | Clock | Clock signal |
6 | Not Used | Not connected |
To connect a PS/2 keyboard to an Arduino UNO, you can use the following example code:
#include <PS2Keyboard.h>
// Define the clock and data pins
const int DataPin = 8;
const int ClockPin = 9;
PS2Keyboard keyboard;
void setup() {
Serial.begin(9600);
keyboard.begin(DataPin, ClockPin);
Serial.println("Keyboard Test:");
}
void loop() {
if (keyboard.available()) {
char c = keyboard.read();
// Print the character to the serial monitor
Serial.print(c);
}
}
No Response from PS/2 Device:
Erratic Behavior or Missing Keystrokes:
Device Not Recognized:
Q: Can I use a PS/2 to USB adapter with this connector? A: Yes, you can use a PS/2 to USB adapter to connect PS/2 devices to USB ports, but ensure the adapter is compatible with your device.
Q: What is the maximum cable length for a PS/2 connection? A: The maximum recommended cable length for a PS/2 connection is approximately 6 feet (1.8 meters) to maintain signal integrity.
Q: Can I connect both a PS/2 keyboard and mouse to a single microcontroller? A: Yes, you can connect both a PS/2 keyboard and mouse to a single microcontroller, but you will need separate data and clock lines for each device.
This documentation provides a comprehensive overview of the PS/2 connector, including its technical specifications, usage instructions, and troubleshooting tips. Whether you are a beginner or an experienced user, this guide will help you effectively utilize the PS/2 connector in your projects.