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How to Use RTD2660H : Examples, Pinouts, and Specs

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Introduction

The RTD2660H is a high-performance display driver IC designed for driving LCD panels. It supports a wide range of display resolutions, making it versatile for various applications. With integrated power management and advanced features, the RTD2660H is commonly used in consumer electronics such as smartphones, tablets, portable monitors, and other display-based devices.

Explore Projects Built with RTD2660H

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
ESP32C3-Based Thermal Imaging Camera with TFT Display
Image of MLX90640-XIAO-ESP32-1.3: A project utilizing RTD2660H  in a practical application
This circuit connects a 1.3 inch TFT Module 240×240 ST7789 display, a GY-MCU90640 thermal camera module, and a XIAO ESP32C3 microcontroller to create a thermal imaging system. The ESP32C3 microcontroller is programmed to read temperature data from the thermal camera, process it, and display a visual representation of the temperature distribution on the TFT screen. The circuit is designed for applications requiring thermal monitoring, such as detecting heat sources or monitoring temperature variations in an environment.
Cirkit Designer LogoOpen Project in Cirkit Designer
ESP32-Powered Wi-Fi Controlled Robotic Car with OLED Display and Ultrasonic Sensor
Image of playbot: A project utilizing RTD2660H  in a practical application
This circuit is a battery-powered system featuring an ESP32 microcontroller that controls an OLED display, a motor driver for two hobby motors, an ultrasonic sensor for distance measurement, and a DFPlayer Mini for audio output through a loudspeaker. The TP4056 module manages battery charging, and a step-up boost converter provides a stable 5V supply to the components.
Cirkit Designer LogoOpen Project in Cirkit Designer
ESP32-Based Temperature Monitoring System with OLED Display and LoRa Communication
Image of transfer: A project utilizing RTD2660H  in a practical application
This circuit features an ESP32 microcontroller connected to a 0.96" OLED display, a LoRa RA02 module for long-range communication, and an Adafruit MAX31865 RTD Sensor Breakout for temperature measurements using a PT100 RTD sensor. Three pushbuttons are interfaced with the ESP32 for user input. The circuit is designed for temperature monitoring with a display output and remote data transmission capabilities.
Cirkit Designer LogoOpen Project in Cirkit Designer
Arduino Mega 2560-Based Multi-Sensor Weather Station with TFT Display and IR Control
Image of aqua2: A project utilizing RTD2660H  in a practical application
This circuit uses an Arduino Mega 2560 to read temperature data from multiple DS18B20 sensors, display the data on an ILI9341 TFT display, and maintain time using an Adafruit DS1307 RTC module. It also receives IR signals using a VS1838B IR receiver and includes an Adafruit MS8607 PHT sensor for additional environmental monitoring.
Cirkit Designer LogoOpen Project in Cirkit Designer

Explore Projects Built with RTD2660H

Use Cirkit Designer to design, explore, and prototype these projects online. Some projects support real-time simulation. Click "Open Project" to start designing instantly!
Image of MLX90640-XIAO-ESP32-1.3: A project utilizing RTD2660H  in a practical application
ESP32C3-Based Thermal Imaging Camera with TFT Display
This circuit connects a 1.3 inch TFT Module 240×240 ST7789 display, a GY-MCU90640 thermal camera module, and a XIAO ESP32C3 microcontroller to create a thermal imaging system. The ESP32C3 microcontroller is programmed to read temperature data from the thermal camera, process it, and display a visual representation of the temperature distribution on the TFT screen. The circuit is designed for applications requiring thermal monitoring, such as detecting heat sources or monitoring temperature variations in an environment.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of playbot: A project utilizing RTD2660H  in a practical application
ESP32-Powered Wi-Fi Controlled Robotic Car with OLED Display and Ultrasonic Sensor
This circuit is a battery-powered system featuring an ESP32 microcontroller that controls an OLED display, a motor driver for two hobby motors, an ultrasonic sensor for distance measurement, and a DFPlayer Mini for audio output through a loudspeaker. The TP4056 module manages battery charging, and a step-up boost converter provides a stable 5V supply to the components.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of transfer: A project utilizing RTD2660H  in a practical application
ESP32-Based Temperature Monitoring System with OLED Display and LoRa Communication
This circuit features an ESP32 microcontroller connected to a 0.96" OLED display, a LoRa RA02 module for long-range communication, and an Adafruit MAX31865 RTD Sensor Breakout for temperature measurements using a PT100 RTD sensor. Three pushbuttons are interfaced with the ESP32 for user input. The circuit is designed for temperature monitoring with a display output and remote data transmission capabilities.
Cirkit Designer LogoOpen Project in Cirkit Designer
Image of aqua2: A project utilizing RTD2660H  in a practical application
Arduino Mega 2560-Based Multi-Sensor Weather Station with TFT Display and IR Control
This circuit uses an Arduino Mega 2560 to read temperature data from multiple DS18B20 sensors, display the data on an ILI9341 TFT display, and maintain time using an Adafruit DS1307 RTC module. It also receives IR signals using a VS1838B IR receiver and includes an Adafruit MS8607 PHT sensor for additional environmental monitoring.
Cirkit Designer LogoOpen Project in Cirkit Designer

Common Applications and Use Cases

  • Smartphones and tablets
  • Portable LCD monitors
  • Digital photo frames
  • Embedded systems with display requirements
  • Industrial control panels

Technical Specifications

Key Technical Details

  • Core Voltage: 3.3V
  • Input Voltage Range: 3.0V to 3.6V
  • Supported Resolutions: Up to 1920x1080 (Full HD)
  • Integrated Power Management: Yes
  • Interface Support: LVDS, TTL, and HDMI
  • Operating Temperature Range: -20°C to 70°C
  • Package Type: LQFP-128 (Low-Profile Quad Flat Package)

Pin Configuration and Descriptions

The RTD2660H comes in an LQFP-128 package with the following key pin assignments:

Pin Number Pin Name Description
1-8 LVDS_TX[0:7] LVDS data output channels for driving LCD panels.
9-16 LVDS_CLK LVDS clock output for synchronization.
17-24 HDMI_RX[0:7] HDMI input data channels for receiving video signals.
25-32 HDMI_CLK HDMI clock input for synchronization.
33-40 TTL_DATA[0:7] TTL data output channels for LCD panels.
41-48 TTL_CLK TTL clock output for synchronization.
49-56 VDD Power supply pins (3.3V).
57-64 GND Ground pins.
65-72 I2C_SCL, I2C_SDA I2C interface for communication and configuration.
73-80 RESET Reset pin to initialize the IC. Active low.
81-88 PWM_OUT Pulse-width modulation output for backlight control.
89-96 GPIO[0:7] General-purpose input/output pins for custom functionality.
97-104 TEST Test pins for factory use. Leave unconnected in normal operation.
105-112 OSC_IN, OSC_OUT Oscillator input and output for clock generation.
113-120 VCORE Core voltage supply pins (1.2V).
121-128 NC No-connect pins. Leave unconnected.

Usage Instructions

How to Use the RTD2660H in a Circuit

  1. Power Supply: Connect the VDD pins to a stable 3.3V power source and the VCORE pins to a 1.2V supply. Ensure proper decoupling capacitors are placed near the power pins to reduce noise.
  2. Reset: Use the RESET pin to initialize the IC. Pull the pin low for at least 10ms during power-up, then release it to start normal operation.
  3. Interface Selection: Configure the input interface (HDMI, LVDS, or TTL) based on your application. Use the I2C interface to set the desired mode and resolution.
  4. Backlight Control: Connect the PWM_OUT pin to the backlight driver circuit to control the brightness of the LCD panel.
  5. Clock Source: Provide an external clock signal to the OSC_IN pin or use the internal oscillator for clock generation.
  6. I2C Communication: Use the I2C_SCL and I2C_SDA pins to communicate with the RTD2660H for configuration and control. The default I2C address is typically 0x50.

Important Considerations and Best Practices

  • Decoupling Capacitors: Place decoupling capacitors (e.g., 0.1µF) close to the power pins to minimize noise and ensure stable operation.
  • Signal Integrity: Use proper PCB layout techniques to maintain signal integrity, especially for high-speed interfaces like HDMI and LVDS.
  • Thermal Management: Ensure adequate heat dissipation by using a proper heatsink or thermal pad if the IC operates in high-temperature environments.
  • Unused Pins: Leave unused pins (e.g., NC and TEST) unconnected to avoid interference.

Example: Connecting RTD2660H to an Arduino UNO

While the RTD2660H is not directly compatible with Arduino UNO due to its complexity, the I2C interface can be used for basic communication. Below is an example Arduino sketch to configure the RTD2660H via I2C:

#include <Wire.h> // Include the Wire library for I2C communication

#define RTD2660H_I2C_ADDRESS 0x50 // Default I2C address of RTD2660H

void setup() {
  Wire.begin(); // Initialize I2C communication
  Serial.begin(9600); // Initialize serial communication for debugging

  // Send a configuration command to RTD2660H
  Wire.beginTransmission(RTD2660H_I2C_ADDRESS);
  Wire.write(0x01); // Example register address
  Wire.write(0x80); // Example data to configure the IC
  Wire.endTransmission();

  Serial.println("RTD2660H configured successfully.");
}

void loop() {
  // Add code here to read or write additional data if needed
}

Troubleshooting and FAQs

Common Issues and Solutions

  1. No Display Output

    • Cause: Incorrect power supply or missing connections.
    • Solution: Verify that the VDD and VCORE pins are connected to the correct voltage levels. Check all signal connections.
  2. Flickering or Distorted Display

    • Cause: Poor signal integrity or incorrect configuration.
    • Solution: Ensure proper PCB layout and shielding for high-speed signals. Use the I2C interface to verify and adjust the configuration.
  3. Backlight Not Working

    • Cause: PWM_OUT pin not connected or misconfigured.
    • Solution: Check the backlight driver circuit and ensure the PWM_OUT pin is generating the correct signal.
  4. I2C Communication Fails

    • Cause: Incorrect I2C address or wiring.
    • Solution: Verify the I2C address and ensure proper pull-up resistors are used on the I2C lines.

FAQs

Q1: Can the RTD2660H drive 4K displays?
A1: No, the RTD2660H supports resolutions up to 1920x1080 (Full HD).

Q2: Is an external oscillator required?
A2: No, the RTD2660H has an internal oscillator, but an external clock can be used for higher precision.

Q3: Can I use the RTD2660H with a Raspberry Pi?
A3: Yes, the RTD2660H can interface with a Raspberry Pi via HDMI or I2C for configuration.

Q4: What is the typical power consumption of the RTD2660H?
A4: The power consumption depends on the application, but it typically ranges from 1W to 2W under normal operation.

Q5: How do I update the firmware of the RTD2660H?
A5: Firmware updates are typically performed via the I2C interface or a dedicated programming tool provided by the manufacturer.