M5 Stack Mini Angle Unit with Potentiometer Documentation

Component Name

M5 Stack Mini Angle Unit with Potentiometer

Overview

The M5 Stack Mini Angle Unit with Potentiometer is a compact, modular component designed for IoT and robotics applications. It combines a precise potentiometer with a robust servo motor, enabling accurate angle measurements and control. This module is part of the M5 Stack series, known for their versatility and ease of integration into various projects.

Functionality

Angle Measurement: The potentiometer allows for precise measurement of the angular position of the shaft, providing a continuous output signal proportional to the angle of rotation.
Servo Control: The integrated servo motor enables precise control of the angular position, allowing the shaft to be moved to specific angles or positions.

The M5 Stack Mini Angle Unit with Potentiometer serves two primary functions

High precision

Offers accurate angle measurements with a resolution of 0.1

Wide range

Operates over a range of 0 to 300

Linearity

Provides a highly linear output signal, ensuring reliable and consistent measurements

High torque

Delivers a high torque output, making it suitable for applications requiring precision control

Low power consumption

Operates at a low power consumption, reducing heat generation and minimizing power supply requirements

Durable

Built with durable materials, ensuring long-lasting performance and reliability

M5 Stack Interface

Modular design

The module features a compact, stackable design, making it easy to integrate into M5 Stack-based projects

Simple connections

Connects to the M5 Stack using a standard Grove interface, minimizing wiring complexity

Compatibility

Compatible with a wide range of M5 Stack boards and modules, allowing for seamless integration into various applications

Shaft

The module features a sturdy, metal shaft that can be easily attached to external components or mechanisms

Mounting options

Offers multiple mounting options, including screws and adhesives, for secure installation in various environments

Operating conditions

Designed to operate in a wide range of temperatures (-20C to 80C) and humidity levels (20% to 80%)

Dimensions

25 x 25 x 14 mm (L x W x H)

Weight

20 grams

Operating voltage

3.3V to 5V

Current consumption

15mA (idle), 100mA (max)

Communication protocol

UART, I2C, or API (dependent on the connected M5 Stack board)

The M5 Stack Mini Angle Unit with Potentiometer is an ideal component for various IoT and robotics applications, including

Robotics and automation systems

Industrial control systems

Medical devices and equipment

Aerospace and defense applications

Prototyping and proof-of-concept projects

By combining the precision of a potentiometer with the control capabilities of a servo motor, this module provides a robust and versatile solution for angle measurement and control in a wide range of applications.

Pin Configuration

M5 Stack Mini Angle Unit with Potentiometer Pinout
The M5 Stack Mini Angle Unit with Potentiometer is a compact IoT device designed for precise angle measurement and control. This documentation explains the pinout of the device, describing each pin's function and providing guidance on how to connect them.
Pins:
1. GND (Ground)
Function: Ground pin for the potentiometer and MCU.
Connection: Connect to the ground pin of your power source or any other device in the circuit.
2. VCC (Power Supply)
Function: Power supply pin for the potentiometer and MCU.
Connection: Connect to a stable power source (e.g., 3.3V or 5V) or a battery.
3. SCL (I2C Clock)
Function: I2C clock pin for communication with the MCU.
Connection: Connect to the SCL pin of your MCU or other I2C devices.
4. SDA (I2C Data)
Function: I2C data pin for communication with the MCU.
Connection: Connect to the SDA pin of your MCU or other I2C devices.
5. INT (Interrupt)
Function: Interrupt pin for the potentiometer. When the angle changes, this pin will go low.
Connection: Connect to an interrupt-enabled digital input pin on your MCU.
6. POT_0 (Potentiometer Signal)
Function: Analog output pin from the potentiometer, indicating the current angle.
Connection: Connect to an analog-to-digital converter (ADC) pin on your MCU.
7. POT_1 (Potentiometer Signal)
Function: Analog output pin from the potentiometer, indicating the current angle (alternative to POT_0).
Connection: Connect to an analog-to-digital converter (ADC) pin on your MCU.
8. RST (Reset)
Function: Reset pin for the MCU.
Connection: Connect to a digital output pin on your MCU or a reset button.
Important Notes:
Make sure to use a suitable power supply and ensure the voltage levels are compatible with your MCU and other devices in the circuit.
Use a pull-up resistor (e.g., 10k) on the SCL and SDA lines for I2C communication.
Connect the POT_0 and POT_1 pins to separate ADC channels on your MCU to read the angle data.
The INT pin is active-low, meaning it will go low when the angle changes.
By following this pinout guide, you can successfully connect the M5 Stack Mini Angle Unit with Potentiometer to your MCU and other devices, enabling precise angle measurement and control in your IoT projects.

Code Examples

M5 Stack Mini Angle Unit with Potentiometer Documentation

Overview

The M5 Stack Mini Angle Unit with Potentiometer is a compact IoT component designed for precise angle measurement and control applications. It features a high-precision potentiometer that provides analog output proportional to the angular displacement of the shaft. This documentation provides a comprehensive guide to using the M5 Stack Mini Angle Unit with Potentiometer, including code examples for various contexts.

Hardware Characteristics

High-precision potentiometer with 10k impedance
 Operating voltage: 3.3V - 5V
 Analog output voltage range: 0V - VCC
 Shaft rotation angle range: 0 - 300
 Resolution: 0.1
 Interface: 3-pin (VCC, GND, OUT)

Software Libraries and Dependencies

The M5 Stack Mini Angle Unit with Potentiometer can be used with the official M5Stack Arduino library. Ensure you have the latest version of the library installed in your Arduino IDE.

Code Examples

### Example 1: Basic Angle Measurement

This example demonstrates how to read the angle value from the potentiometer and display it on the serial console.

```c++
#include <M5Stack.h>

#define POT_PIN 32  // Analog input pin for potentiometer

void setup() {
  M5.begin();
  Serial.begin(115200);
}

void loop() {
  int potValue = analogRead(POT_PIN);
  float angle = (potValue / 4096.0)  300.0;  // Convert analog value to angle (0 - 300)
  Serial.print("Angle: ");
  Serial.print(angle);
  Serial.println(" degrees");
  delay(50);
}
```

### Example 2: Servo Control using Angle Feedback

This example demonstrates how to use the M5 Stack Mini Angle Unit with Potentiometer as feedback for a servo motor. The servo motor is controlled to maintain a specific angle setpoint.

```c++
#include <M5Stack.h>
#include <Servo.h>

#define POT_PIN 32  // Analog input pin for potentiometer
#define SERVO_PIN 13  // Digital output pin for servo

Servo myServo;

void setup() {
  M5.begin();
  myServo.attach(SERVO_PIN);
}

void loop() {
  int potValue = analogRead(POT_PIN);
  float angle = (potValue / 4096.0)  300.0;  // Convert analog value to angle (0 - 300)
  int setpoint = 150;  // Desired angle setpoint (150)
  int error = angle - setpoint;
  
  if (error > 10) {
    myServo.write(180);  // Rotate servo clockwise
  } else if (error < -10) {
    myServo.write(0);  // Rotate servo counter-clockwise
  } else {
    myServo.write(90);  // Hold servo at current position
  }
  delay(50);
}
```

Note: In the examples above, the `POT_PIN` and `SERVO_PIN` definitions should be adjusted according to your specific setup.

These code examples demonstrate the basic usage of the M5 Stack Mini Angle Unit with Potentiometer. The component can be used in various IoT applications, such as robotics, automation, and smart devices, where precise angle measurement and control are essential.