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August 26, 2021October 23, 2022

Turing Pi V2 mini-ITX cluster board takes four Raspberry Pi CM4 or NVIDIA Jetson SoMs

The Turing Pi V2 is a mini-ITX cluster board that builds on the Turing Pi mini-ITX cluster board taking up to 7 Raspberry Pi Compute Modules introduced in 2019, but instead supports up to four Raspberry Pi CM4 (Compute Modules 4) or NVIDIA Jetson Nano/TX2 NX/Xavier NX SO-DIMM system-on-modules. The Turing Pi 2 board is equipped with two Mini PCIe sockets, two Gigabit Ethernet ports, two SATA III ports, four USB 3.0 ports, a 40-pin GPIO header, and a 24-pin ATX connector for power. Since board-to-board connectors – as found in Raspberry Pi Computer Module 4 – are not ideal for density, the company went with a design including 260-pin SO-DIMM connectors plus CM4 adapter boards, a design that allows them to also integrate other SoMs like the NVIDIA Jetson SO-DIMM modules. Turing Pi V2 specifications: SoM interface – 4x 260-pin SO-DIMM slot for up to four Raspberry Pi CM4 […]

Minimal Carrier Board for Raspberry Pi Compute Module 4

August 10, 2021August 11, 2021

MinCab is the smallest Raspberry Pi CM4 carrier board ever

Carrier boards for Raspberry Pi CM4 modules are all over the place for routers, NAS, industrial gateways, and more. Here’s another one with the Minimal Carrier Board for Raspberry Pi Compute Module 4, or MinCab, that powers the RPi CM4 module via a USB Type-C port. That’s about all it does, although you would also be able to access some GPIOs, 5V, 3.3V, and GND signals via pads on the carrier board. Specifically, eight GPIOs are accessible with IO14, IO15, IO2, IO3, IO4, IO12, IO13, and IO18. Ivan Kuleshov explains this can be useful for Smart Home systems for instance, but it could be anything that requires WiFI and/or Bluetooth connectivity, a powerful Linux capable processor (as opposed to something like ESP32), and a few I/Os. The MinCab might be a good alternative to the upcoming (and delayed) Raspberry Pi 4 Model A for people wanting to use Broadcom BCM2711 […]

Raspberry Pi Compute Module 4 mini router keeps cool with aluminum alloy cover

There are many hardware platforms based on Raspberry Pi CM4 system-on-module, but in most instances, only the baseboard is provided, and you have to handle mounting and/or make an enclosure by yourself. One of those boards was Seeed Studio’s “Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4”, which as the name implies, offers two Gigabit Ethernet ports, as well as two USB 3.0 ports, and a micro HDMI port for video output. I say “was” because the company has now designed a PC/ABS case with an aluminum alloy cover acting as a heatsink to keep the RPi CM4 module cool. Raspberry Pi Compute Module 4 mini router’s specifications: SoM – Raspberry Pi CM4 with up to 8GB RAM, 32GB eMMC flash, dual-band WiFi 5 and Bluetooth 5.0 module; replaceable by any Raspberry Pi Compute Module 4 Storage – MicroSD card slot (only accessible with RPi CM4Lite module) […]

May 27, 2021June 4, 2022

CatsPi Industrial Lite RPi CM4 carrier board features GbE, RS485, Watchdog MCU

We’ve seen a fair deal of Raspberry Pi CM4 carrier boards, and here’s another one courtesy of QwaveSystems with CatsPi Industrial Lite board following Raspberry Pi SBC form factor/dimensions, and equipped with Gigabit Ethernet, RS485, USB ports, as well as a watchdog MCU among other interfaces and features. Contrary to what the name implies, CatsPi Industrial Lite only works with Raspberry Pi CM4 with eMMC flash, but not the CM4 Lite module since there’s no MicroSD card on the baseboard. It’s not the first Raspberry Pi Compute Module 4 carrier board with RS485, however, as we previously covered CM Hunter also including CAN and 1-wire interfaces, but QwaveSystems’ solution is more compact and mostly mechanically compatible with Raspberry Pi model B SBC’s. CatsPi Industrial Lite board specifications: Compatible SoMs – Raspberry Pi CM4 with eMMC flash only Video Output – Micro HDMI port Connectivity – Gigabit Ethernet, optional 802.11b/g/n/ac WiFi […]

March 27, 2021March 28, 2021

$30 Raspberry Pi CM4 IoT Router Carrier Board Mini offers Dual Gigabit Ethernet

We’ve recently written about Seeed Studio’s “Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4” that offers dual Gigabit Ethernet, and two USB 3.0 ports for software router applications, but it can also be used for IoT, Smart Home, and camera projects, as well as HTPC maker thanks to micro HDMI output and MIPI DSI/CSI connector. It is sold for an affordable $45, exceeding the Raspberry Pi CM4 module. But if all you want to do is get a dual Gigabit Ethernet WiFi router or IoT gateway, DFRobot has now introduced a more compact and cheaper carrier board for Raspberry Pi CM4: “Compute Module 4 IoT Router Carrier Board Mini“. CM4 IoT Router Board Mini specifications: Compatible Module – Raspberry Pi Compute Module 4 / 4 Lite with Broadcom BCM2711 quad-core Cortex-A72 processor, up to 8GB RAM, up to 32GB flash, optional 802.11b/g/n/ac WiFi 5 and Bluetooth 5.0 […]

Onlogic Raspberry-Pi CM4 mini PC Dual GbE

March 16, 2021March 16, 2021

Onlogic industrial Raspberry Pi CM4 based mini PC to offer dual GbE, USB 3.1, M.2 SATA socket

Yesterday, we covered two Raspberry Pi CM4 carrier boards with dual Ethernet ports, including one from Seeed Studio with dual Gigabit Ethernet and USB 3.1 ports, and another from MCUZone with Gigabit + Fast Ethernet ports, USB 2.0 ports, plus a 4G LTE modem. But Onlogic will soon add another option with a complete Raspberry Pi CM4 based industrial mini PC with dual Gigabit Ethernet, teased as “One Tough Pi”, as well as USB 3.2/2.0 ports, M.2 SATA storage, and more. Onlogic “One Tough Pi” mini PC preliminary specifications: SoM – Raspberry Pi CM4 module with up to 8 GB LPDDR4 memory, 32 GB eMMC flash storage Storage – M.2 2280 SATA SSD support Video & audio output – 1x Micro HDMI port up to 4Kp60 Connectivity – 2x Gigabit Ethernet ports USB – 3x USB ports include 1x USB 3.2 Gen 1 port, and 2x USB 2.0 ports; 1x […]

March 15, 2021

Raspberry Pi CM4 boards offer dual Ethernet, 4G LTE

Since the launch of Raspberry Pi CM4 and CM4Lite systems-on-module last October, we’ve seen carrier boards bring their own set of features including industrial communication interfaces, a stereoscopic camera, four SATA ports to build a NAS, a DIN-rail based industrial controller, and more. But so far, I have not seen a Raspberry Pi CM4 carrier board with dual Ethernet ports. Seeed Studio’s “Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4” was brought to our attention this morning, but there’s another one with 4G LTE connectivity, Fast+Gigabit Ethernet ports, and extra I/Os courtesy of MCUZone’s CM4-4G IO board. Let’s have a look at both of them. Dual Gigabit Ethernet Carrier Board for Raspberry Pi Compute Module 4 Specifications: Supported SoMs – Raspberry Pi CM4 and CM4Lite with up to 8GB RAM, 32GB eMMC flash, optional WiFi & Bluetooth Storage – MicroSD card slot to load OS on CM4Lite […]

March 1, 2021September 13, 2023

A neat way to add a reset button to Raspberry Pi Pico

The Raspberry Pi Pico is a nice little board, but if you program in C language, you’d need to disconnect the micro USB cable each time you’d like to flash the UF2 firmware. That’s not convenient and could damage your board over time. The Raspberry Pi Foundation even decided to write a blog post explaining how to add a reset button to your Raspberry Pi Pico using a breadboard circuit. Here’s what it looks like. That works but you may want to use that breadboard for another circuit, so the reset button takes space. Another solution is to program with a Raspberry Pi board and use SWD mode to upload code using the debug port, instead of using mass storage (BOOTSEL) mode. I’ve also found out that most baseboards for the Pico board will include a reset button. But this morning, I’ve come across another solution that looks pretty neat. […]