Compute Module 4 / 5 – Production Base Board with RFID/HDMI/USB/RTC
Professional, compact base board for Raspberry Pi Compute Module 4 and 5, designed for production applications, prototyping, and integration into finished devices. Enables rapid project deployment with RFID reader support and a complete set of interfaces.
Dimensions: 64.5mm (width) x 92.60mm (length) x 15.20mm (height - tallest component ETH)
Key Features:
- Support for CM4 and CM5 with eMMC memory (required for software operation)
- Dedicated SPI port with TE Connectivity 3-640621-8 connector for RFID readers (e.g., RC522) or other SPI devices, with MISO, MOSI, SCK, SDA, IRQ, RST, 3V3, and GND lines
- USB-C power supply
- 100 Mb/s Ethernet with RJ45 socket
- HDMI port for connecting displays or monitors
- One USB port for peripheral device support
- Real-time clock (RTC) with battery backup
- Built-in buzzer for signaling
- One programmable GPIO pin in Hi-Z (high impedance) configuration with built-in resistor – designed for LED control. Relay control can be achieved by adding an additional transistor
- Additional, unsoldered UART interface (TX, RX, 3V3, GND) for custom applications
- Compact dimensions, suitable for mounting in project and production enclosures
Included in the Kit:
- Sample software for RFID reader operation with REST API communication (sending HTTP requests to a defined endpoint)
- Technical documentation (block diagram, pin description, connection instructions)
What is it used for?
After installing Compute Module 4 or 5 (with eMMC memory), the board provides complete hardware infrastructure for:
- Building access control systems, time registration systems (RCP), machine and terminal login
- IoT device prototyping with Ethernet, USB, and HDMI communication
- Rapid application testing using RFID readers
- Integration into industrial products as a main board
Excellent solution for development work, testing, and as a stable hardware base in serial production of devices based on Raspberry Pi CM4/CM5 with eMMC.
Technical Specifications:
| Parameter | Value |
|---|---|
| Supported modules | Raspberry Pi Compute Module 4 and 5 with eMMC |
| SPI connector for RFID | TE Connectivity 3-640621-8 (MISO, MOSI, SCK, SDA, IRQ, RST, 3V3, GND) |
| Communication ports | 1× Ethernet 100 Mb/s (RJ45), 1× USB, 1× HDMI, 1× SPI (RFID), 1× UART (TX, RX, 3V3, GND – unsoldered) |
| Power supply | USB-C, 5 V |
| RTC | Yes, with battery backup |
| Output signals | 1× GPIO Hi-Z with resistor – LED control. Relay control can be achieved by adding an additional transistor. |
| Signaling | Built-in buzzer |
| Dimensions | Compact, for mounting in project enclosures |
| Included in kit | Sample software with REST API, technical documentation |