The **2JS100-R** is a specific model of a **Miniature Joystick / Thumbstick**, typically utilized in industrial control panels, medical equipment, and remote control systems. It is part of the 2JS series, often associated with manufacturers like *CH Products* or similar industrial joystick suppliers. --- ### ## Technical Specifications Overview The "R" suffix usually denotes a specific configuration, often related to the **Return-to-center** (Spring centering) mechanism or a specific electrical resistance value. | Feature | Description | | :--- | :--- | | **Component Type** | Dual-axis (X-Y) Resistive Joystick | | **Sensor Type** | Potentiometer-based | | **Resistance Value** | Typically 5kΩ or 10kΩ per axis | | **Mechanical Angle** | ±20° to ±25° from center | | **Mounting Style** | Panel Mount / Rear Mount | | **Operating Life** | ~1 to 5 million cycles | --- ### ### Internal Electronic Components 1. **Potentiometers (X and Y Axes):** The core electronic parts are two independent potentiometers. As the stick moves, the wiper slides across a resistive element, changing the voltage output proportionally to the stick's position. * **Input:** VCC and GND. * **Output:** Analog signal (Voltage Divider). 2. **The "R" Designation (Specifics):** While codes vary by manufacturer, in the 2JS series, the **R** often indicates: * **Return-to-center:** A spring mechanism that pulls the stick back to the neutral position. * **RoHS Compliant:** Ensuring the electronic leads and solder are lead-free. 3. **Terminals/Wiring:** The base features solder lugs or header pins. There are usually 3 pins per axis: * **Pin 1:** Ground. * **Pin 2:** Wiper (Output signal). * **Pin 3:** Reference Voltage (VCC). --- ### ### Application in Circuits To use the 2JS100-R in an electronic project (like with an Arduino or PLC), you treat it as two separate variable resistors. #### **Basic Wiring Diagram Logic** ```cpp // Example: Reading the 2JS100-R on an Arduino int xPin = A0; // X-axis connected to Analog 0 int yPin = A1; // Y-axis connected to Analog 1 void setup() { Serial.begin(9600); } void loop() { int xVal = analogRead(xPin); // Returns 0-1023 int yVal = analogRead(yPin); Serial.print("X: "); Serial.print(xVal); Serial.print(" | Y: "); Serial.println(yVal); delay(100); } ``` --- ### ### Key Advantages * **Precision:** Provides a high-resolution analog signal compared to digital (ON/OFF) switches. * **Compact Size:** The "100" series is designed for tight spaces where a full-sized industrial joystick won't fit. * **Durability:** Unlike consumer-grade joysticks (like those in gaming controllers), the 2JS series uses higher-grade plastics and dust seals.