RP2350A microcontroller chip designed with for . dual-core, dual-architecture, equipped with dual-core ARM -M33 processor and dual-core,Hazard3 RlSC-V core processor, clock running frequency up to 150MHz,Built-in 520KB and 16MB on-chip Flash. Using Type-C interface, keeping up with the trend of , no need to worry about whether to insert it forward or backward Onboard 1.69-inch capacitive touch LCD screen, 240x280 resolution, 262K color. Onboard lithium battery charging and discharging interface, which is conducive to use in mobile scenarios,Onboard RTC clock chip, RTC battery interface, convenient timing function. Onboard buzzer can be used as an auditory peripheral,USB1.1 host and device support,Support low-power sleep and hibernation mode. RP2350-Touch-LCD-1.69 is a low-cost, high-performance microcontroller development board with a rounded shape and compact size. The board is equipped with a 1.69-inch capacitive touch LCD screen, lithium battery charging chip, six- sensor (three- accelerometer and three- gyroscope), RTC, buzzer and other peripherals, which are convenient for development and embedding into products. RP2350:Dual-core, dual-architecture processor, up to 150MHz operating frequency W25Q128JVSIQ:16MB NOR-Flash PCF85063:RTC clock chip QMI8658:Six- Inertial Measurement Unit (IMU), including a 3- gyroscope and a 3- accelerometer ETA6098:High efficiency lithium battery charging chip MX1.25 lithium battery interface:MX1.25 2P connector, can be used to connect 3.7V lithium battery, supports charging and discharging Type-C interface:Can be used to download programs and supports USB1.1 host and slave devices Buzzer:auditory peripherals RTC battery interface:Connect a rechargeable RTC battery (only supports rechargeable RTC tteries) Power-on function button:Support power-on detection function, single click, double click, multi-clic