Based on ARM Cortex A9 core Rayeager PX2 development board circuit diagram

Probe domestic switch needle KG-300K needle head diameter is 3.0mm normally open switch needle

Rayeager PX2 enhanced version with Rockchip PX2 processor, built-in dual-core ARM Cortex-A9 core, memory 1GB DDR3@400MHz, maximum operating frequency 1.4GHz, equipped with Mali-400 MP4 GPU, support OpenGL ES 1.1/2.0 and OpenVG 1.1, and support ARM DS-5 Streamline performance analysis tool, support XBMC and latest Android 4.4.2, LCD, VGA, HDMI, with 95 expansion pins, including GPIO, I2Cx3, SPI, CIF, RGB, SARADC, HSADC, UART, PWMx2, TS And other common interfaces. It can be applied in security, smart home, navigator, car electronics, on-demand system, etc., and has a wide range of fields.