Key Benefits performance processing: Xtensa 32bit LX7 processor up to 240 MHz delivers responsive computation for control tasks and prototyping. Wireless connectivity: supports 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth 5 (LE) for versatile online and devicetodevice communication. Flexible storage and memory: builtin 512 KB SRAM and 384 KB ROM, stacked 8 MB PSRAM, and onboard 16 MB Flash with support for external devices, plus a TypeC interface for convenient connections. Rich touch display: 1.46 inch LCD with 412 x 412 resolution and 16.7M colors; touch control via I2C and interrupts; supports UART, I2C, and multiple GPIO interfaces for peripheral integration. RTC with power backup: compatible with PCF85063 RTC chip; enables uninterrupted RTC operation via external battery so timekeeping continues when the main battery is replaced; PWR and BOOT side buttons can be configured for functions. Technical specifications Processor: Xtensa 32bit LX7, up to 240 MHz Wireless: 2.4 GHz WiFi (802.11 b/g/n) and Bluetooth 5 (LE) Memory and storage: SRAM 512 KB, ROM 384 KB, PSRAM stacked 8 MB, Flash onboard 16 MB; supports external devices Display: 1.46 inch LCD, resolution 412 x 412, 16.7M colors Display interface: touch control via I2C and interrupts; UART, I2C, and multiple GPIO interfaces Interfaces: TypeC connector for enhanced user convenience and device compatibility RTC and power: PCF85063 RTC chip compatible; external battery support for uninterrupted RTC operation during main battery replacement User controls: PWR and BOOT side buttons can be configured for functions Display and interfaces The 1.46 inch LCD provides a compact yet capable visual interface with color depth for UI elements and status indicators. Touch operation is available through the I2C interface and can be interrupted for responsive control. Peripheral connectivity includes UART, I2C, and several GPIO lines to support sensors, actuators, and custom peripherals. The TypeC interface enhances compatibility with modern hosts and power options. RTC and power management The board is designed to work with the PCF85063 RTC chip. An external battery can provide uninterrupted timekeeping, ensuring the RTC continues to function when the main battery is replaced. Onboard PWR and BOOT buttons can be configured to implement functions, enabling custom control flows. Use scenarios IoT prototype and edge device development: leverage the LX7 processor, WiFi/Bluetooth connectivity, and onboard storage for local data processing, sensor integration, and wireless communication in smart devices or gateways. Portable touch panel and controller: utilize the 1.46 inch touch display and GPIO/I2C/UART interfaces to build compact control panels, handheld controllers, or humanmachine interfaces. Timestamped data logging and batterybacked timekeeping: use the PCF85063 RTC with external battery to preserve accurate time across power cycles, suitable for environmental monitoring, asset tracking, or field data collection. Education and rapid development: a versatile platform for learning RTC integration, wireless connectivity, and embedded UI development in a single board.