High-Quality China Raspberry Pi HAT: Affordable Mini Single-Board Computer from Reliable Suppliers and Trusted Factory Manufacturers, Factory
Product Description
1. PCB Installation View
The product PCB measures 265x120 mm, with the top view shown below:
| J1 | Board-mounted power connector, DC 5–18V | J6 | HDMI 2.0 connector |
| P1 | External DC power supply, DC 5–18V | J9 | 2*USB Type-A connectors |
| J2 | USB Type-C fast charging, up to 20V | J10 | 2*USB Type-A connectors |
| Rpi-CM5 | Rpi-CM5 Core Board Connector | CON1 | 2*DB9 RS232 connector |
| CON3 | WAN (4G/5G) module connector | A1/A4 | SMA board external antenna connector |
| J15 | Nano-SIM card connector | A2/A3 | IPEX4-G1 board-mounted antenna connector |
| J4 | CR2032 battery connector | SW1 | System power switch button + CM5 indicator light |
| J5 | CM5 Fan Connector | D31 | WAN module indicator light |
| J3 | Firmware update jumper | D28 | User-defined indicator light |
| J8 | 6 GB switch Ethernet port | D3 | Power supply status indicator light |
| J7 | GB LAN Ethernet Connector |
2. Module Installation
Note 2: Wear anti-static gloves to prevent static electricity from damaging the components.
2.1 Install Rpi-CM5
Align the Rpi-CM5 module with the slot and place it flat. Gently press to ensure it sits properly. Secure with M2.5 screws for permanent use. To disassemble, remove screws and use a plastic pry tool gently.
2.2 Install the WAN module
Supports standard WWAN modules (30x51mm or 30x42mm) with M.2 B-Key interface. Insert at an angle, press down, and secure with M2.5 or M3 screws.
2.3 Install the antenna
Features internal (IPEX-G1) and external (SMA) interfaces. Install WiFi/BT or WAN antennas based on module requirements using appropriate adapter cables.
2.4 Install the SIM card
The J15 slot supports Nano-SIM cards only. Push in until it locks; push again to pop out.
2.5 Install the real-time clock battery
Uses a 2032 button battery (J4). Insert following the spring orientation until it locks.
3. Power Supply and Operation
3.1 Power Methods
- External DC (P1): 5–18V DC socket.
- Internal DC (J1): VH (3.96) connector, 5-18V.
- USB Type-C (J2): 4V to 20V, supports PD3.2, PPS, and BC1.2.
The system automatically selects the source with higher voltage if both are connected.
4. Power On and Off
Power On: Starts automatically when power is connected. If in shutdown state, press SW1.
Power Off: Use system shutdown command or press SW1. Forced shutdown: hold SW1 for 3-5 seconds.
5. Burn the Firmware
- Preparation: Install rpiboot and Raspberry Pi Imager on a Windows host.
- Jumper: Short-circuit J3 with a jumper cap while powered off.
- Power: Connect DC power supply (recommended over USB power).
- Connection: Connect J2 Type-C to computer. Device should appear as "BCM2712D0 Boot".
- Initialize: Run "rpiboot – Mass Storage Gadget".
- Flash: Use Raspberry Pi Imager to burn the firmware to the CM5 storage.
- Reset: Power off, remove J3 jumper, and restart.
6. System Configuration
6.1 Default Features
HDMI, USB-HUB, and Switching functions work by default. LAN port (YT6801) and RS232 require driver/DTS configuration.
6.2 DTS Configuration Table
| Add Row to config.txt | Function |
|---|---|
| dtoverlay=uart1-pi5 dtparam=uart1=on |
Configure and Open UART1 |
| dtoverlay=uart2-pi5 dtparam=uart1=on |
Configure and Open UART2 |
| dtoverlay=gpio-shutdown,gpio_pin=17,active_low=1,gpio_pull=up | Power monitoring, auto shutdown |
| gpio=14,15=op,dh | WWAN Power configured high |
| gpio=16=op,dl | User_LED configured low |
Send Inquiry
Frequently Asked Questions (FAQ)
The product PCB measures exactly 265x120 mm.
No, you must ensure the motherboard is powered off and the button battery is removed before installing or removing any modules.
This product specifically supports Nano-SIM cards via the J15 slot.
It supports DC 5–18V via the P1/J1 connectors and 4V to 20V via the USB Type-C port.
Yes, the YT6801 Gigabit Ethernet chip requires a specific driver installation as it is not automatically recognized by the Rpi-CM5 default kernel.
Under special circumstances, you can perform a forced shutdown by pressing and holding the SW1 switch button for 3 to 5 seconds.
