2 Pin 1.27/1.25mm RTC battery input connector.

LEDs: 1 x power LED and 3 x GPIO Controlled LED (SYS, LAN, WAN).

Debug: one Debug UART, 3 Pin 2.54mm header, 3V level, 1500000bps.

Ethernet: one Native Gigabit Ethernet, and one PCIe Gigabit Ethernet.

PMU: RK808-D PMIC, cooperated with independent DC/DC, enabling DVFS, software power-down, RTC wake-up, system sleep mode.

VPU: 4K VP9 and 4K 10bits H265/H264 60fps decoding, Dual VOP, etc.

CPU: big.LITTLE，Dual-Core Cortex-A72(up to 2.0GHz) + Quad-Core Cortex-A53(up to 1.5GHz).

It is a good platform for developing IoT applications, NAS applications etc. FriendlyElec ported an OpenWrt system for it. It has two Gbps Ethernet ports and 1G/4G DDR4 RAM.

The NanoPi R4S(as 'R4S') is an open source platform with dual-Gbps Ethernet ports designed and developed by FriendlyElec for IoT applications.

13 Configuring kernel command line parameters.

12.2 Making a bootable SD card from a root filesystem.

12 Backup rootfs and create custom SD image (to burn your application into other boards).

10.6.3.1 Download Android8.1 Source Code.

10.6.2.1 Download Android10 Source Code.

10.6.1 Hardware and Software Requirements.

10.5.1 Download scripts and image files.10.4.7.2 Packaging and creating an SD image.10.1.2 Method 2: Setup build environment on the host machine.10.1.1 Method 1: Using docker to cross-compile.7.13 Setup Chinese language and Input method.7.11 Start the program automatically at startup(For example Kodi).7.6.3 Setup x11vnc server with systemd auto start up.7.6 Install x11vnc Server on Debian for Remote Access.6.8 Configure parameters for serial port.6.3.3 Set up to use another network interface.5.20 Build FriendlyWrt using GitHub Actions.

5.19.2 Download and decompress sdk from the network disk.5.19.1 Install the compilation environment.5.17.4.1 Unable to access the network services provided by the Docker container.5.17.2 Work with Docker: Install Personal Nextcloud.5.17.1 Work with Docker: Install JellyFin.5.16.4 Change the default WiFi hotspot configuration.5.16.2 Configure a USB WiFi Device as AP.5.16.1 Check USB WiFi Device with Command Line Utility.5.15 How to Control Fan Speed for Cooling.5.14 Use USB2LCD to view IP and temperature.5.12 Configuring Quectel EC20 (4G module) dial-up networking.5.11 Configure the function of the user button.5.9.1 Set up openwrt official opkg source.3.2 Differences Between R4S Standard Version & R4S Enterprise Version.

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