Industrial IoT Wireless Expansion Module for Raspberry Pi CM4 Online Sale

Industrial IoT Wireless Expansion Module for Raspberry Pi CM4

This is an industrial expansion module for the Raspberry Pi Compute Module 4 (not included), which features common interfaces such as Gigabit Ethernet, HDMI, USB, CSI and GPIO. The expansion also allows additional 4G / 5G / LoRa wireless communication modules (not included) to be connected via the M.2 or Mini-PCIe socket and sim card slot. There are also industrial interfaces including RS485, CAN and an onboard RTC.

Combined with the industrial rail-mount protection case, the module is an ideal choice for building an IoT gateway, 4G/5G router, IoT data acquisition, or even a PLC device in an industrial automatic control system and more!

Expansion base only. Does not include the CM4, power supply or M.2 B-Key LTE/LoRa module. We have stocked this base-only version to allow you to choose your wireless and power options separately.

Important Notes

• DO NOT hot-plug any devices except the USB and HDMI
• Please check the fan voltage before connecting the cooling fan. The board supports a 12V cooling fan by default, if you want to use a 5V cooling fan, please change the FAN_VCC resistor
• DO NOT connect other devices while writing CM4 via Type C interface
• 5V/2.5A or higher power supply is recommended
• DO NOT power the board by 12V DC and the 5V Type C at the same time
• The USB2.0 is disabled by default, you need to add the line dtoverlay=dwc2,dr_mode=host to config.txt to enable it.

What’s Onboard?

1) CM4 socket
 – Suitable for all variants of Compute Module 4
2) HDMI connector
 – Supports 4K 30fps output
3) USB 2.0 ports
 – 3x USB 2.0, for connecting sorts of USB devices
4) RJ45 Gigabit Ethernet
 – 10/100/1000M compatible
5) DC power supply
 – 7 ~ 36V DC input
6) CM4 status indicator
 – PWR: Raspberry Pi power indicator
 – ACT: Raspberry Pi operating status indicator
7) 4G/5G module status indicator
 – M.2 PWR: module enable indicator
 – M.2 NET: module operating status indicator
8) PWR & USB
 – 5V DC power supply or USB programming port
9) M.2 B KEY
 – Supports 4G/5G modules, or other communication modules using USB channel
10) Nano-SIM card slot
 – Supports standard Nano-SIM card for 5G/4G/3G/2G communication
11) BOOT selection
 – ON: CM4 will be booted from USB-C interface
 – OFF: CM4 will be booted from eMMC or Micro SD card
12) DC power supply
 – 7 ~ 36V DC input
13) Dual non-isolated RS485
 – 2x RS485, with 600W lightning proof, anti-surge, and 15KV ESD protection (reserved 120R optional balancing resistor jumper)
14) Non-isolated CAN
 – ESD protection and transient spike voltage protection (reserved 120R optional balancing resistor jumper)
15) Micro SD card slot
 – For connecting a Micro SD card with a pre-burnt image (Lite variant ONLY)
16) Fan header
 – For connecting a cooling fan, allows speed adjustment and measurement
17) Camera port
 – MIPI CSI camera port, 15Pin 1mm pitch
18) RTC battery holder
 – Supports CR1220 button cell
19) M.2 VCC selection
 – Select 3.3V or 4.2V power supply
20) RTC interruption configuration
 – PI-RUN: CM4 will reboot on RTC interruption
 – GL-EN: CM4 powerdown on RTC interruption
 – D17: D17 pin is triggered on RTC interruption (default)
21) IO-VREF selection
 – Set the CM4 IO logic level as 3.3V (default) or 1.8V
22) FAN power supply selection
 – Select 12V (default) or 5V power to drive the fan
23) System function configuration
 – BT_DIS: Bluetooth disabled, for CM4 with antenna variant ONLY
 – WiFi_DIS: WiFi disabled, for CM4 with antenna variant ONLY
 – WP_DIS: boot mode switch, ONLY be used when NOT booted from eMMC or SD card
24) RTC/FAN I2C bus selection
 – SDA0/SCL0: I2C-10 is shared with CSI/DSI (default)
 – GPIO3/2: I2C-1 is shared with GPIO header
25) Partial GPIO header
 – Including 1x I2C, 2x GPIO pins, and power supply

Specification

Package Contents

• 1x CM4 IoT Wireless Base
• 1x PCIe to 4G/LoRa adapter
• 1x Screwdriver
• 1x Screws pack

You will also need

• A power supply (5V USB-C or 7-36V centre-positive barrel jack)
• Optional for wireless options: LTE/LoRa Module (M.2 B Key)/Sim card

Resources

• Product Wiki