esp-dev-kits Choose target... Choose version... ESP32-C3 Boards ESP32-C3-DevKitC-02 ESP32-C3-DevKitM-1 ESP32-C3-LCDkit User Guide ESP32-C3-DevKitC-RUST-2 Resources and Legal Notices Related Documentation and Resources Disclaimer and Copyright Notice esp-dev-kits ESP32-C3-LCDkit Download PDF ESP32-C3-LCDkit [中文] ESP32-C3-LCDkit is a development board designed for wildlife protection. It is used to evaluate and verify the application of the ESP32-C3 screen. And it is composed of mainboard and subboard. User Guide Board Overview Start Application Development Hardware Reference Hardware Revision Details Sample Request Related Documents Next Previous Suggestion on this document? Provide feedback Help improve this document? Edit on GitHub Need more information? Check ESP forum Sales Questions Technical Inquiries © Copyright 2016 - 2026, Espressif Systems (Shanghai) CO., LTD Built with Sphinx using a theme based on Read the Docs Sphinx Theme. esp-dev-kits Choose target... Choose version... ESP32-C3 Boards ESP32-C3-DevKitC-02 ESP32-C3-DevKitM-1 ESP32-C3-LCDkit User Guide Board Overview Feature List Block Diagram Description of Components Software Support Application Examples Start Application Development Required Hardware Hardware Setup Software Setup Hardware Reference GPIO Allocation Power Distribution Infrared TX/RX Select C6 Module Compatibility Design Hardware Setup Options Hardware Revision Details Sample Request Related Documents ESP32-C3-LCD-Ev-Board ESP32-C3-DevKitC-RUST-2 Resources and Legal Notices Related Documentation and Resources Disclaimer and Copyright Notice esp-dev-kits ESP32-C3-LCDkit ESP32-C3-LCDkit Download PDF ESP32-C3-LCDkit [中文] This user guide will help you get started with ESP32-C3-LCDkit and will also provide more in-depth information. The document consists of the following sections: Board Overview: Overview of the board hardware/software. Start Application Development: How to set up hardware/software to develop applications. Hardware Reference: More detailed information about the board’s hardware. Hardware Revision Details: This is the first revision of this board released. Sample Request: How to get a sample board. Related Documents: Links to related documentation. Board Overview ESP32-C3-LCDkit is an ESP32-C3-based evaluation development board with an SPI interface display. It also has an integrated rotary encoder switch and features screen interaction. Due to its low cost, low power consumption, and high performance, ESP32-C3 satisfies the basic GUI interaction needs, gaining ground in scenarios with small screen sizes. ESP32-C3-LCDkit with ESP32-C3-MINI-1 Module Feature List The main features of the board are listed below: Module Embedded: ESP32-C3-MINI-1 module with 4 MB flash and 400 KB SRAM Display: Compatibility with various subboards and support for displays with I2C and SPI interfaces. Please refer to LCD Subboards for more information Rotary Encoder Switch: Key switches and 360° rotation for on-screen GUI control Infrared module: Infrared transmitter and infrared receiver for infrared wireless control Audio: On-board audio amplifier and speaker for audio playback USB: USB Type-C download/debug Block Diagram The block diagram below shows the components of ESP32-C3-LCDkit and their interconnections. ESP32-C3-LCDkit Block Diagram (Click to Enlarge) Description of Components ESP32-C3-LCDkit is a development board designed for wildlife protection. It contains a mainboard and a subboard. Mainboard ESP32-C3-LCDkit_MB is the core of the kit, which integrates the ESP32-C3-MINI-1 module and provides ports for connection to the LCD subboard. ESP32-C3-LCDkit - Front (Click to Enlarge) The key components of the board are described in a clockwise direction. Key Component Description ESP32-C3-MINI-1 Module ESP32-C3-MINI-1 is a generic Wi-Fi + Bluetooth LE MCU module that is built around the ESP32-C3 series of SoCs. It is integrated with 4 MB flash and 400 KB SRAM. UART & RGB Expander I/O Connects the system power supply pins and UART and RGB data pins via a 2.54 mm pitch pin header. RGB LED Supports configuring the RGB LED display to indicate status or behavior. Speaker Supports speaker playback through an audio power amplifier. LCD Display Connector Connects the 1.28” LCD subboard via a 2.54 mm pitch female header. USB Power Port Provides power to the entire system. It is recommended to use at least a 5V/2A power adapter to ensure a stable power supply. Used for USB communication between the PC side and the ESP32-C3-MINI-1 module. Reset Button Press this button to reset the system. 5 V to 3.3 V LDO Low Dropout Regulator (LDO). 3.3 V Power On LED Indicates the status of the system power supply. EC11 Rotary Encoder Switch Features both a 360° rotary encoder and a key switch to enable control of the on-screen GUI. Speaker PA Chip Supports speaker playback. Infrared RX Receives external infrared signals. Infrared TX/RX I/O Select Select the infrared RX/TX function via a 2.54 mm pitch pin header and jumper caps. Infrared TX Sends out infrared signals. LCD Subboards The ESP32-C3-LCDkit_DB subboard supports a 1.28” LCD screen with SPI interface and 240x240 resolution. The driver chip used for this screen is GC9A01. ESP32-C3-LCDkit_DB - Front (Click to Enlarge) ESP32-C3-LCDkit_DB - Back (Click to Enlarge) Software Support The ESP32-C3-LCDkit development framework is ESP-IDF. ESP-IDF is a FreeRTOS-based SoC development framework with a bunch of components including LCD, ADC, RMT, and SPI. An example is provided for ESP32-C3-LCDkit under the folder Examples . You can configure project options by entering idf.py menuconfig in the example directory. Application Examples The following application examples are available for ESP32-C3-LCDkit: Knob Panel Example - Demonstrates a GUI demo for a knob panel with voice playback functionality, providing a reference for developing similar applications using the ESP32-C3-LCDkit. For more examples and the latest updates, please refer to the examples folder. To explore the application examples or to develop your own, please follow the steps outlined in the Start Application Development section. Start Application Development This section provides instructions on how to do hardware and software setup and flash firmware onto the board to develop your own application. Required Hardware 1 x ESP32-C3-LCDkit_MB 1 x LCD subboard 1 x USB 2.0 cable (standard Type-A to Type-C) 1 x PC (Windows, Linux, or macOS) Note Please make sure to use the appropriate USB cable. Some cables can only be used for charging, not for data transfer or program flashing. Hardware Setup Prepare the board for loading of the first sample application: Connect the LCD subboard to the LCD Display Connector. Plug in the USB cable to connect the PC with the board. The LCD lights up and you can now control GUI through the rotary encoder switch. Now the board is ready for software setup. Software Setup To learn how to quickly set up your development environment, please go to Get Started > Installation. For more software information on developing applications, please go to Software Support. Hardware Reference This section provides more detailed information about the board’s hardware. GPIO Allocation The table below provides the allocation of GPIOs exposed on terminals of ESP32-C3-MINI-1 module to control specific components or functions of the board. ESP32-C3-MINI-1 GPIO Allocation Pin Pin Name Function 1 GND Ground 2 GND Ground 3 3V3 3.3 V power supply 4 NC No connection 5 IO2 LCD_D/C 6 IO3 AUDIO_PA 7 NC No connection 8 EN Reset 9 NC No connection 10 NC No connection 11 GND Ground 12 IO0 LCD_SDA 13 IO1 LCD_SCL 14 GND Ground 15 NC No connection 16 IO10 ENCODER_A 17 NC No connection 18 IO4 IR_RX/IR_TX 19 IO5 LCD_BL_CTRL 20 IO6 ENCODER_B 21 IO7 LCD_CS 22 IO8 RGB_LED 23 IO9 ENCODER_SW 24 NC No connection 25 NC No connection 26 IO18 USB_DN 27 IO19 USB_DP 28 NC No connection 29 NC No connection 30 RXD0 Reserved 31 TXD0 Reserved 32-35 NC No connection 36-53 GND Ground Power Distribution The development board is powered via the USB-to-USB port: ESP32-C3-LCDkit - USB-to-USB Power Supply Output system power supply: ESP32-C3-LCDkit - System Power Supply Infrared TX/RX Select Since the Infrared TX and Infrared RX modules share the same signal line on the chip, it is required to short-circuit specific pins in Infrared TX/RX Select Port via jumper caps to choose between the TX/RX function: ESP32-C3-LCDkit - Infrared RX Module ESP32-C3-LCDkit - Infrared TX Module C6 Module Compatibility Design ESP32-C3-LCDkit development board uses the ESP32-C3-MINI-1 module by default, with resistors R2, R4, R5, and R35 connected to the mainboard: ESP32-C3-LCDkit - C3/C6 Resistor Settings The development board is also designed to be compatible with the ESP32-C6-MINI-1 module, where resistors R2, R4, R5, and R35 need to be removed and resistors R13 and R14 need to be connected. Hardware Setup Options Automatic Download After the development board is powered on, press the rotary encoder switch and Reset button, then release Reset first and the encoder second, to put the ESP development board into download mode. Hardware Revision Details ESP32-C3-LCD-Ev-Board: This older-version board is an engineering sample and is minimally maintained by Espressif. For historical documentation for this board, please refer to ESP32-C3-LCD-Ev-Board User Guide. Sample Request ESP32-C3 is a cost-effective and industry-leading low-power performance solution for building rotary or small displays driven by an SPI interface. For sample requests, please contact us at sales@espressif.com. Related Documents ESP32-C3 Datasheet ESP32-C3-MINI-1 Datasheet ESP Product Selector ESP32-C3-LCDkit_MB Schematics ESP32-C3-LCDkit_MB PCB Layout ESP32-C3-LCDkit_DB Schematics ESP32-C3-LCDkit_DB PCB Layout ESP32-C6-LCDkit_DB Schematics ESP32-C6-LCDkit_DB PCB Layout 1.28_TFT_240x240_SPI_Display Infrared Transmitter (IR67-21CTR8) Infrared Receiver（IRM-H638TTR2） Audio Amplifier (NS415