The Differences. Although the Raspberry Pi Compute Module 4 has the same computing power as the Raspberry Pi 4, one can think of the Raspberry Pi Compute Module as a stripped-down version of the Raspberry Pi 4 with no ports. So, a carrier board is necessary to use the Compute Module The Compute Module 4 IO Board is a companion board for Raspberry Pi Compute Module 4 (supplied separately). It is designed for use both as a development system for Compute Module 4 and as an embedded board integrated into end products

Features:

1. Micro SD card slot
2. CSI interface
3. USB2.0 interface
4. 40PIN GPIO interface
5. PWR indicator
6. ACT indicator
7. AMS1117-3.3
8. BOOT switch

Packages Includes:

1 x Waveshare Nano Base Board (A) for Raspberry Pi Compute Module 4, the Same Size as the CM4

What is CM4 Maker Board? CM4 Maker Board is a development board that uses the Raspberry Pi Compute Module 4 (CM4) and comes with several features. This board is a great tool for Pro Makers who are looking for a more reliable Raspberry Pi and want to experiment with Pi and also works as well for those who want to take a step exploring the CM4.

Benefits of CM4 Maker Board, it comes with a wide range of input voltage and can be powered up through DC Jack (7V-18V) or USB-C (5V). Turning the device ON and OFF can be easily done through a power button instead of typing ‘power off’ on the terminal or finding a shutdown button on the start menu.

It comes with multiple ways to boot up the Raspberry Pi OS. Choose what is convenient for you, 1) Micro SD Card, 2) NVME SSD (Bigger Storage, more reliable), and 3) eMMC (on the CM4).

Moreover, the feature you can find on the standard Raspberry Pi is also available, such as Gb Ethernet, 4x USB2.0, HDMI, CSI Port, DSI Port, 3.5mm Audio Out, and compatibility with RPI HAT.

In addition, the CM4 Maker Board is equipped with PCF85063A RTC, which could provide a real-time clock for applications without an internet connection.

For those Makers, this board also comes with Maker’s Features: the Grove Ports, Maker Port, 10x GPIO LEDs, Piezo Buzzer with Mute Switch, and 3x Push Buttons.

Features:

1. Wide range of Input Voltage
   1. DC Jack: 7V-18V
   2. USB: USB type-C 5V
2. Power Button
   1. Can Safely Shutdown CM4 Board
   2. Turn ON the CM4 without Power Cycle
3. Micro-SD card Slot
4. Supports 2230 & 2242 NVME SSD Slot
   1. Bigger Storage
   2. Bootable
   3. Storage Expansion
5. Supports Other M.2 PCIE Modules

Package Includes:

1 x CM4 Maker Board Only

4 x Silicone Bumper

Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 And 1-Ch CAN, Multi Protections

Features: 

1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi, series boards
2. 1-Ch CAN, adopts MCP2515 controller and CAN transceiver, converts SPI to CAN
3. 2-Ch RS485 adopts SC16IS752+SP3485 dual-chip combination, converts SPI to RS485
4. The onboard power conversion circuit supports an 8~28V wide voltage power supply and can power the Raspberry Pi at the same time
5. Onboard unibody power supply isolation, providing stable isolated voltage, no extra power supply required for the isolated terminal
6. Onboard unibody digital isolation, for isolating the signal, reliable and jam-proof, low power consumption
7. Onboard TVS (Transient Voltage Suppressor), effectively suppresses surge voltage and transient spike voltage in the circuit, lightning-proof & anti-electrostatic
8. Onboard resettable fuse and protection diodes, ensures the current/voltage stable outputs, provide over-current/over-voltage proof, improve shock resistance
9. Onboard 120Ω terminal resistor, configured by jumper
10. Onboard terminals and pin headers make, a more convenient connection
11. Breakout SPI control pins, for connecting with host control boards

Specifications:

1. Operating Voltage: 3.3V
2. Expanded Interface: 2-Ch RS485 + 1-Ch CAN
3. Communication Interface: SPI
4. CAN Controller: MCP2515
5. CAN Transceiver: SIT65HVD230DR/SN65HVD23D
6. CAN Baud Rate: ≦1Mbps
7. UART Expansion Chip: SC16IS752
8. RS485 TRANSCEIVER SP3485
9. RS485 Baud Rate: 300~921600 bps
10. Power Supply External power supply terminal OR Raspberry Pi
11. External Power Supply Range: DC 8~28V

Package Include:

1 x Waveshare Isolated RS485 CAN HAT (B) For Raspberry Pi, 2-Ch RS485 and 1-Ch CAN, Multi Protections

Mini Dual Gigabit Ethernet Base Board Designed for Raspberry Pi Compute Module 4.CM4-DUAL-ETH-MINI, a baseboard that can be used with Raspberry Pi Compute Module 4, supports 5V DC Type-C interface power supply, and features dual Gigabit Ethernet ports, a single-channel USB2.0 with a fan interface and standard Raspberry Pi 40Pin interface, which is suitable for scenarios requiring multiple network ports such as soft routing.

Openwrt has the ability for full customization and extensibility. Openwrt is becoming more and more popular at present. Compared with commonly used wireless routers, OpenWrt’s modifiable firmware allows us to customize router functions according to our own needs, such as single-arm routing, automatic Define routing policies, QoS, etc., intranet penetration, etc.

Features:

1. Suitable For Evaluating The Raspberry Pi CM4
2. Onboard ETH/Micro SD/USB Interfaces
3. Standard CM4 Socket And 40PIN GPIO Header
4. Suitable For Compute Module 4 Lite/EMMC Series Module

Useful Links:

• CM4 Datasheet
• CM4-DUAL-ETH-MINI-SchDoc
• 3D Model

Software

• Rpiboot setup.zip
• SDFormatter
• Win32DiskImager
• Putty

Package Includes:

1 x Waveshare Mini Dual Gigabit Ethernet Base Board

This is a CM4 To Pi 4B Adapter for Raspberry Pi and is an alternative solution for Raspberry Pi 4B. Onboard 4 x USB3.0 ports, Gigabit Ethernet port, PoE header, and so on.

Features:

1. Onboard standard CM4 connector, support access to CM4 Lite / eMMc series boards with Quad Core Cortex A72 64-bit processor, more powerful performance
2. Easily compatible with the interfaces of Raspberry Pi 4B board, the DISPLAY port position is inconsistent with the main board of Raspberry Pi 4B
3. Onboard 4-ch USB 3.0 ports, compatible with USB 2.0 / 1.1 transmission
4. Onboard RJ45 Gigabit Ethernet port, 10 / 100 / 1000 M adaptive
5. Onboard PoE header, for connecting PoE HATs
6. DSI interface is DSI1
7. USB Type C interface is for the power supply or can be used as the USB SLAVE interface for programming images
8. Do not connect to other devices when using the micro USB port to program the image for ensuring the power supply of CM4
9. CM4 must be provided by 5V 2A, or it will shut down, lower frequency, etc.

Package Includes:

1 x Waveshare CM4 To Pi 4B Adapter for Raspberry Pi

CM4-DUAL-ETH-WIFI6-BASE, the IO board of the Raspberry Pi Compute Module 4, is a carrier board that can be used with the Raspberry Pi Compute Module 4 and supports 7~12V DC power supply, and the board has three USB ports 2.0, WIFI6, dual Ethernet ports, suitable for soft routing and other scenarios that require multiple Ethernet ports.

Features:

1. supports 7~12V DC power supply
2. Compatible With The Following Types Of WIFI Modules With M.2 A/E KEY Interface
3. Support Access To WIFI6 Module, Make It Easy To Build Raspberry Pi CM4 Mini PC With WIFI Function
4. Standard CM4 Socket And Color-Coded Raspberry Pi 40PIN GPIO Header Suitable For Compute Module 4 Lite/EMMC Series Module

Specifications:

1. Power Input: 7V-36V
2. CM4 Socket: suitable for all variants of Compute Module 4
3. Networking: Gigabit Ethernet RJ45 connector × 1; 100M Ethernet RJ45 connector × 1
4. USB: USB 2.0 port × 3
5. PCIE: M.2 E KEY
6. PIN Header: 40PIN GPIO header × 1
7. DSI Display: MIPI DSI display port × 1, 15pin 1.0mm FPC connector
8. CSI Camera: MIPI CSI-2 camera port × 2, 15pin 1.0mm FPC connector
9. HDMI: HDMI × 2, support 4K 30fps output
10. RTC: Real-time clock with a battery socket and ability to wake Compute Module 4
11. TF CARD SLOT: TF card socket for Compute Module 4 Lite (without eMMC) variants

Package Includes:

1 x Waveshare WIFI6 Dual ETH Base Board/Mini-Computer Designed for Raspberry Pi Compute Module 4(NOT Included), Onboard M.2 E KEY Slot