RevPi Connect 4: Industrial Raspberry Pi based on the CM4

The RevPi Connect 4 is the latest Revolution Pi base module from KUNBUS, now in its 4th generation, and is powered by the Raspberry Pi Compute Module 4 (CM4). This version also features the modular design, the open source concept, and the industrial suitability for which the Revolution Pi is already known. Depending on the application, there are various product versions with different equipment features.

The RevPi Connect 4 uses the faster Broadcom BCM2711 processor, a 64-bit quad-core Arm® Cortex®-A72. With this upgrade, up to 8 GB of RAM is now possible. Additionally, an eMMC memory with up to 32 GB is available. The device also supports WLAN and Bluetooth® connectivity via the internal antenna or, for improved reception, via an external antenna connected to the newly available SMA socket. Another added feature is the simple plug-and-play expansion, which supports up to ten I/O modules, compared to the previous five. These modules can be configured intuitively via a graphical user interface. Encased in a DIN rail housing, the RevPi Connect 4 is equipped with two Gigabit Ethernet ports and two USB 3.2 Gen1 interfaces. Additionally, it features an RS-485 interface, a micro-HDMI port, and a micro-USB port. The real-time clock (RTC) is now no longer stored temporarily via a capacitor, but via an integrated battery. A hardware watchdog is also included. Furthermore, the device has a HAT EEPROM. As soon as the device is flashed, its information, including type, serial number, and MAC address, is displayed. The front panel features six RGB LEDs, five of which can be individually programmed and controlled. A customized 64-bit Raspberry Pi OS, including a real-time patch and a process image, is pre-installed. By default, the RevPi Connect 4 supports both Modbus RTU and Modbus TCP protocols, providing both client and server functionalities. Users can also equip the device with optional control and HMI software. In addition, the Connect 4 supports well-known protocols such as MQTT and OPC UA, simplifying the programming of custom applications using Node-RED, Python, and C, among others.