Bridgetek IDM2040-21R 2.1" Rotary Dial Display

Bridgetek IDM2040-21R 2.1" Rotary Dial Display is designed using the Raspberry Pi RP2040 microcontroller with the FT800Q video engine, a rotary encoder with button, RS-485 transceiver, and a 2.1" round LCD. This compact, high-resolution display integrates a user-friendly rotary dial interface, offering intuitive control and navigation. This display features an easy-to-read, full-color TFT display with a wide viewing angle, making it ideal for applications such as smart home devices, consumer electronics, and automotive systems. The Bridgetek IDM2040-21R is optimized for low-power consumption and provides efficient interaction with the user through a customizable interface, which can display both static and dynamic content. The combination of a small form factor and versatile input method allows for sleek, interactive designs in a variety of modern embedded solutions and interactive applications.

Features

RP2040 host MCU is developed by Raspberry Pi with dual Arm^® 32-bit Cortex^®-M0+ core processors running at up to 133MHz, 264KB of SRAM, and 8MB of onboard Flash memory
2.1" round LCD screen, 480x480 resolution with capacitive touch support
1x Inter-Integrated Circuit (I²C) for connecting multiple peripherals
1x Universal Asynchronous Receiver-Transmitter (UART) for serial communication
1x RS-485 for long distance and reliable communication with other devices
1x audio output for audio applications
RGB666 hardware interface for high-quality color display
Rotary encoder featuring 24x steps with a push button for input and control

Includes pins for a touch panel interface (SDA, SCL, RST#, INT#, etc.), which are used for I2C communications with the touch controller CST826, which is compatible with FT3267
480x480 pixels LCD resolution, IPS TFT LCD type, ST7701S controller, 300cd/m² typical brightness, 80° viewing angle in all directions
Single 5V power supply from USB-C or 6-pin JST connector
Supports C/C++, MicroPython, and CircuitPython development
1x Type C USB connector provides 5V and can be used for firmware upgrades
Supports USB upgrade firmware
BOOTSEL mode for programming via USB (drag-and-drop UF2 support)

Applications

Home automation systems
- Smart thermostats
- Lighting control
Audio equipment
- Mixing consoles
- Hi-Fi systems
Medical
- Portable medical monitors
- Patient monitoring devices
Industrial
- Control panels
- Measurement instruments

Automotive interfaces
- Infotainment systems
- Dashboards
Consumer electronics
- Smart speakers and media players
- Portable gaming consoles
Test and measurement equipment
- Oscilloscopes
- Multimeters

Specifications

ø53.28mm display size
5.0V typical operating voltage
Operating current
- 237mA typical with backlight at full brightness
- 63mA typical with the backlight off

Interface
- 11,5200bps typical RS-485 baud rate, 1200bps minimum
- USB Type C port
-20°C to +70°C operating temperature range, 5V, 60% humidity
10% to 90% operating relative humidity (RH) range