M5 Stack Color Sensor RGB Unit (TCS3472)

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Color Sensing Range

30,000

1 dynamic range

RGB Channel Sensitivity

100 lx to 100,000 lx

Clear Channel Sensitivity

1 lx to 100,000 lx

Operating Temperature

-40C to 85C

Dimensions

25.4 x 25.4 x 10 mm (1 x 1 x 0.4 inch)

Applications

The M5 Stack Color Sensor RGB Unit (TCS3472) is suitable for a wide range of IoT applications, including

Smart home automation

Industrial automation and quality control

Robotics and machine learning projects

Medical and healthcare devices

Consumer electronics and wearables

By providing a compact, easy-to-use, and high-accuracy color sensor module, the M5 Stack Color Sensor RGB Unit (TCS3472) enables developers to create innovative and reliable IoT solutions.

Pin Configuration

M5 Stack Color Sensor RGB Unit (TCS3472) Pinout Explanation
The M5 Stack Color Sensor RGB Unit (TCS3472) is a compact and versatile color sensor module that integrates the TCS3472 chip, providing accurate color detection and measurement capabilities. Here's a detailed explanation of each pin on the module, along with connection guidelines:
Pinout Structure:
The M5 Stack Color Sensor RGB Unit (TCS3472) has a total of 6 pins, arranged in a single row. The pinouts are labeled as follows:
Pins:
1. VIN (Red Wire)
Function: Power supply input (3.3V - 5V)
Description: Connect to a power source, such as a microcontroller or a battery, to supply power to the module.
2. GND (Black Wire)
Function: Ground
Description: Connect to the ground pin of the power source or the microcontroller to complete the circuit.
3. SCL (Yellow Wire)
Function: I2C clock signal
Description: Connect to the SCL pin of the microcontroller to establish I2C communication.
4. SDA (White Wire)
Function: I2C data signal
Description: Connect to the SDA pin of the microcontroller to establish I2C communication.
5. INT (Blue Wire)
Function: Interrupt output
Description: Connect to a digital input pin on the microcontroller to receive interrupt signals from the color sensor.
6. ADDR (Green Wire)
Function: I2C address selection
Description: Connect to a digital output pin on the microcontroller to select the I2C address (0x29 or 0x39) of the color sensor.
Connection Guidelines:
When connecting the M5 Stack Color Sensor RGB Unit (TCS3472) to a microcontroller or other devices, follow these guidelines:
Use suitable jumper wires or connectors to connect the module to the microcontroller or other devices.
Ensure the power supply voltage (VIN) is within the recommended range (3.3V - 5V) to avoid damage to the module.
Connect the GND pin to the ground pin of the power source or microcontroller to complete the circuit.
Use I2C communication protocol to interact with the color sensor module.
Connect the SCL and SDA pins to the corresponding pins on the microcontroller to establish I2C communication.
Connect the INT pin to a digital input pin on the microcontroller to receive interrupt signals from the color sensor.
Connect the ADDR pin to a digital output pin on the microcontroller to select the I2C address (0x29 or 0x39) of the color sensor.
Note:
Before connecting the module, ensure that the power supply is stable and within the recommended voltage range.
Refer to the datasheet and application notes for the TCS3472 chip for more information on the color sensor's operation, I2C communication, and address selection.
Implement proper noise reduction and filtering techniques to ensure accurate color measurements.

Code Examples

M5 Stack Color Sensor RGB Unit (TCS3472) Documentation

Overview

The M5 Stack Color Sensor RGB Unit (TCS3472) is a compact, low-power color sensor module designed for Internet of Things (IoT) applications. It is based on the TCS3472 sensor chip, which provides high-accuracy color and brightness detection. This module is ideal for color recognition, object detection, and ambient light sensing in various IoT projects.

Key Features

High-accuracy color and brightness detection
 16-bit color data output (R, G, B, and clear channel)
 Adjustable gain and integration time
 Low power consumption (< 5mA)
 I2C communication interface
 Compatible with M5 Stack development boards

Pinout

The M5 Stack Color Sensor RGB Unit (TCS3472) has a standard 6-pin Grove connector for easy connection to M5 Stack development boards. The pinout is as follows:

VCC: Power supply (3.3V or 5V)
 GND: Ground
 SCL: I2C clock line
 SDA: I2C data line
 INT: Interrupt output (optional)
 ADDR: I2C address selection (optional)

Code Examples

### Example 1: Basic Color Reading (Arduino)

This example demonstrates how to read color data from the TCS3472 sensor using an M5 Stack Core development board and the Arduino IDE.
```cpp
#include <Wire.h>

#define TCS3472_I2C_ADDRESS 0x29

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

void loop() {
  uint16_t r, g, b, c;

// Read color data from TCS3472
  Wire.beginTransmission(TCS3472_I2C_ADDRESS);
  Wire.write(0x00); // Command register
  Wire.write(0x01); // Enable ADC
  Wire.endTransmission();
  Wire.requestFrom(TCS3472_I2C_ADDRESS, 8);
  r = Wire.read() << 8 | Wire.read();
  g = Wire.read() << 8 | Wire.read();
  b = Wire.read() << 8 | Wire.read();
  c = Wire.read() << 8 | Wire.read();

// Print color data to serial console
  Serial.print("R: ");
  Serial.print(r);
  Serial.print(" G: ");
  Serial.print(g);
  Serial.print(" B: ");
  Serial.print(b);
  Serial.print(" C: ");
  Serial.println(c);

delay(500);
}
```
### Example 2: Color-Based Object Detection (MicroPython)

This example demonstrates how to use the TCS3472 sensor to detect objects based on their color using an M5 Stack Core development board and MicroPython.
```python
import machine
import utime

i2c = machine.I2C(scl=machine.Pin(22), sda=machine.Pin(21))
tcs3472 = machine.I2Cslave(i2c, addr=0x29)

while True:
    # Read color data from TCS3472
    tcs3472.write(b'x00x01')  # Enable ADC
    utime.sleep_ms(10)
    data = tcs3472.read(8)
    r = data[0] << 8 | data[1]
    g = data[2] << 8 | data[3]
    b = data[4] << 8 | data[5]
    c = data[6] << 8 | data[7]

# Calculate color ratio
    ratio = (r + g + b) / c

# Detect object based on color ratio
    if ratio > 2.5:
        print("Object detected (white)")
    elif ratio < 1.5:
        print("Object detected (dark)")
    else:
        print("No object detected")

utime.sleep_ms(500)
```
Note: These examples are for illustration purposes only and may require modification to suit your specific use case. Ensure proper calibration and tuning of the TCS3472 sensor for accurate color detection.