Walnut Pi
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Walnut Pi 2B is an Allwinner T527 octa-core SBC with Raspberry Pi 5 form factor and interfaces

Walnut Pi 2B is a single board computer (SBC) powered by an Allwinner T527 octa-core Cortex-A55 SoC with a built-in 2 TOPS AI accelerator that closely follows the Raspberry Pi 5 design for compatibility with most HAT+ expansion boards and accessories. The Walnut Pi 2B SBC ships with 1GB to 4GB LPDDR4 RAM, an optional 32GB eMMC flash, and features a microSD card slot, gigabit Ethernet, four USB ports, a WiFI and Bluetooth module, MIPI DSI/CSI connectors, and the same PCIe FFC connector as found on the Raspberry Pi 5, and a 40-pin GPIO. One of the most obvious differences is that it only comes with one micro HDMI port instead of two on the Pi 5. Let’s check out the specifications to find other changes. Walnut Pi 2B specifications: SoC – Allwinner T527 CPU Octa-core Arm Cortex-A55 processor with four cores @ 1.80 GHz and four cores @ 1.42GHz […]

P42 Pico2 M.2 Raspberry Pi RP2350 board
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P42 Pico2 M.2 – A Raspberry Pi RP2350 board in M.2 form factor

The P42 Pico2 M.2 may look like an M.2 module, but it’s actually a Raspberry Pi RP2350 development board in M.2 2230 form factor whose edge connector exposes USB, UART, I2C, and control I/Os. The board ships with a 2MB SPI flash and complies with voltage levels defined by the M.2 specification, with some of the interfaces running on 1.8 V. The SWD interface, +3.3 V, GND, and 16 IOs are accessible on castellated pins, and there’s also a QWIIC connector for I2C modules, but it’s not populated by default. The board also comes with a microSD card slot on the bottom and the usual Reset and BOOT buttons. P42 Pico M.2 specifications: SoC – Raspberry Pi RP2350A CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trustzone, Secure boot OR Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used in any combination Memory – 520 […]

ArmSoM RK3588 AIModule7 NVIDIA Jetson Nano-compatible SOM
Sparkfun IoT RedBoard RP2350
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SparkFun IoT RedBoard – Raspberry Pi RP2350 or ESP32 WiFi & Bluetooth boards with Arduino UNO R4 form factor

SparkFun has just launched the “IoT RedBoard – RP2350” and “IoT RedBoard – ESP32” boards with Arduino UNO R4 form factor based on respectively Raspberry Pi RP2350B + RM2 wireless module and ESP32-WROOM-32E WiFi and Bluetooth module. Both boards feature Arduino UNO headers and a Qwiic connector for expansion, a microSD card for storage, battery support, USB and DC jack power input, plus a few buttons and LEDs. The RP2350 board also adds an HSTX connector mainly useful for controlling HDMI or SPI displays. Sparkfun IoT RedBoard specifications: MCU sub-system and wireless RP2350 model MCU –  Raspberry Pi RP2350B CPU Dual-core Arm Cortex-M33 @ 150 MHz with Arm Trust zone, Secure boot Dual-core RISC-V Hazard3 @ 150 MHz Up to two cores can be used at any given time Memory – 520 KB on-chip SRAM Memory – 8MB PSRAM Storage – 16MB Flash Wireless module – Raspberry Pi RM2 2.4 […]

Radxa Zero 3E
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Radxa Zero 3E SBC offers gigabit Ethernet and PoE in Raspberry Pi Zero 2 W form factor

Last December, we wrote about the Rockchip RK3566-powered Radxa Zero 3W WiFi 6 SBC and noted that the Radxa Zero 3E with gigabit Ethernet and optional PoE supports would be coming soon with about the same dimensions as the Raspberry Pi Zero 2 W. “Soon” is now as the Radxa Zero 3E is now available on Aliexpress or Amazon with RAM capacities from 1GB to 8GB LPDDR4. The small SBC also comes with optional eMMC flash up to 64GB, a microSD card slot for storage, a micro HDMI video output port, a MIPI CSI connector compatible with Raspberry Pi Camera V1 and V2, two USB-C ports, and a 40-pin GPIO header for expansion. Radxa Zero 3E specifications: SoC – Rockchip RK3566 CPU – Quad-core Arm Cortex-A55 processor @ 1.6 GHz GPU – Arm Mali G52-2EE GPU with support for OpenGL ES 1.1/2.0/3.2, Vulkan 1.1, OpenCL 2.0 NPU – 0.8 TOPS […]

Banana Pi BPI-M4 Zero
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Banana Pi BPI-M4 Zero Allwinner H618 SBC follows Raspberry Pi Zero 2 W form factor

Banana Pi BPI-M4 Zero is another Raspberry Pi Zero 2 W alternative with an Allwinner H618 quad-core Arm Cortex-A53 processor, 2GB LPDDR4, 8GB eMMC flash, mini HDMI video output, two USB-C ports, WiFi 5 and Bluetooth 4.2 wireless connectivity and the usual 40-pin GPIO header as well as a 24-pin “Misc” FPC header. It succeeds the Banana Pi BPI-M2 Zero launched in 2017 with an Allwinner H2+ quad-core Cortex A7 processor with basically the same form factor but a more powerful 64-bit Arm processor, more memory (2GB vs 512MB), built-in eMMC flash, dual-band WiFi 5, and the 24-pin MIPI CSI connector is now a “Misc” connector with USB 2.0, Fast Ethernet, and other I/Os. Banana Pi BPI-M4 Zero specifications: SoC – Allwinner H618 CPU – Quad-core Arm Cortex-A53 processor @ up to 1.5GHz with 1MB L2 cache GPU – Arm Mali-G31 MP2 GPU with support for OpenGL ES 1.0/2.0/3.2, OpenCL […]

RADXA Zero 3W
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Radxa Zero 3W SBC – Rockchip RK3566 SoC, 8GB RAM, WiFi 6 in Raspberry Pi Zero 2 W form factor

More Raspberry Pi Zero 2 W lookalikes are coming to market, as after the Allwinner H618-based Orange Pi Zero 2W, the Radxa Zero 3W has now been introduced with a 1.6 GHz Rockchip RK3566 processor and up to 8GB RAM, plus WiFi 6 and Bluetooth 5.4 connectivity, which makes it one of the most powerful Arm Linux SBCs in the compact Raspberry Pi Zero form factor. The board also comes with an optional eMMC flash with up to 64GB capacity, a microSD card, a micro HDMI port, two USB Type-C ports, a MIPI CSI camera connector, and of course, the usual 40-pin Raspberry Pi GPIO header. Radxa Zero 3W specifications: SoC – Rockchip RK3566 CPU – Quad-core Arm Cortex-A55 processor @ 1.6 GHz (Note the RK3566 is usually clocked at up to 1.8 GHz but may have been underclocked here due to heat issues at the higher frequency as the […]

Rockchip RK3568, RK3588 and Intel x86 SBCs and SoMs in 2025
RP2040-PiZero
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Waveshare RP2040-PiZero – A Raspberry Pi RP2040 board with Raspberry Pi Zero form factor

Waveshare RP2040-PiZero board is a Raspberry Pi Zero lookalike that features a Raspberry Pi RP2040 microcontroller instead of a Linux-capable application processor. But RP2040 board comes with the same layout as the Raspberry Pi Zero and similar ports including two USB Type-C ports, a mini HDMI/DVI connector, a microSD card slot, and a 40-pin GPIO header, but also adds support for LiPo batteries with a 2-pin connector and a charging circuit. RP2040-PiZero specifications: MCU – Raspberry Pi RP2040 dual-core Cortex M0+ microcontroller @ 133 MHz with 264 kB of embedded SRAM Storage – 16MB SPI flash, microSD card slot Video – Mini HDMI port that can output DVI signals USB – 1x USB Type-C port for data using PIO-USB host/device implementation Expansion – 40-pin color-coded header with 2x SPI, 2x I2C, 2x UART, 4x 12-bit ADC, 16x PWM, 8x Programmable I/O (PIO) state machines for custom peripheral support Misc – […]

Rockchip RK3566 Raspberry Pi Zero SBC
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Geniatech XPI-3566-ZERO – A Rockchip RK3566 SBC that follows Raspberry Pi Zero form factor

Geniatech XPI-3566-ZERO is a Rockchip RK3566 powered single board computer (SBC) that provides an alternative to the Raspberry Pi Zero 2W with a more powerful quad-core 1.8 GHz Arm Cortex-A55 processor, support for 4Kp60 video playback and output, WiFi 5 and Bluetooth 5.0, a built-in eMMC flash, and so on. Geniatech XPI is a family of SBCs that closely follows the design of various Raspberry Pi boards, and after introducing the Raspberry Pi 3 Model B-sized XPI-3566 board last year, the company has now designed a more small Rockchip RK3566 SBC that follows the Raspberry Pi Zero form factor. Geniatech XPI-3566-ZERO specifications: SoC – Rockchip RK3566 quad-core Cortex-A55 processor @ up to 1.8 GHz with Arm Mali-G52 2EE GPU, 1 TOPS AI accelerator System Memory – 512MB LPDDR4 (up to 8GB optional) Storage – 8GB eMMC flash (up to 128GB optional) Video Output – mini HDMI 2.0 up to 4Kp60 […]

Boardcon CM3588 Rockchip RK3588 System-on-Module designed for AI and IoT applications