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Sumolink Erhu RP2040 is a $3.60 Raspberry Pi Pico clone with a USB-C port

The Sumolink Erhu RP2040 is a Raspberry Pi Pico clone with the exact same features except the micro USB port has been replaced by a USB-C port that may be preferred by some people, and the Wisdpi claims it is one of the world’s cheapest RP2040 MCU boards at $3.60, although that price does not include shipping. We had seen some other replicas, but most offer something different rather than just the USB-C port. Two examples that come to my mind are the WeAct RP2040 with a USB-C port, but also a Reset button and up to 16MB SPI flash, instead of the 2MB flash in the original board, and the Banana Pi BPI-Pico-RP2040 with an extra I2C connector and an RGB LED. Sumolink Erhu RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – 2MB QSPI flash (Note: the specs list […]

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Rongpin DR4-S905/DR4-A311D SoM features Amlogic S905D3 or A311D processor

Shenzhen Rongpin Electronic Technology (Rongpin) DR4-S905 and DR4-A311D are SO-DIMM system-on-modules (SoM) respectively powered by Amlogic S905D3 quad-core Cortex-A55 processor and Amlogic A311D octa-core Cortex-A73/A53 processor. The modules come with 2GB LPDDR4 and 16GB eMMC flash by default, but can be ordered with up to 4GB RAM and 128GB storage, and the company offered a feature-rich carrier board to test all interfaces provided but the system-on-modules. DR4-S905 system-on-module specifications: SoC – Amlogic S905D3 quad-core Cortex-A55 processor @ 1.9GHz with Arm Mali-G31MP2 GPU up to 800MHz supporting OpenGL ES 3.2, Vulkan 1.0 and OpenCL 2.0, real-time Cortex-M4 core for always-on processing, and 1.2 TOPS NPU System Memory – 2GB LPDDR4 by default (1GB/4GB options) Storage – 16GB eMMC 5.1 flash by default (8GB, 32GB, 64GB, 128GB options) SO-DIMM edge connector for connection to a carrier board Power management – Discrete design Dimensions – 69.6 x 30mm Temperature Range – -25℃ to […]

Khadas Edge2 Arm mini PC
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HealthyPi 5 WiFi & BLE biosignal-acquisition sensor platform captures body temperature, ECG, PPG, SpO₂, and other vitals (Crowdfunding)

HealthyPi 5 is an open-source sensor platform for biosignal acquisition based on Raspberry Pi RP2040 microcontroller and ESP32-C3 WiFi & BLE module used to capture vitals such as electrocardiogram (ECG), respiration, photoplethysmography (PPG), oxygen saturation (SpO₂), and body-temperature data. It is a complete redesign of the HealthyPi v4 Raspberry Pi HAT with many of the same features. While the HealthyPi 5 also follows the Raspberry Pi HAT form factor and can be connected to a Raspberry Pi SBC to analyze the data, it can also be used as a standalone device with the processing handled by the RP2040 dual-core Cortex-M0+ microcontroller and connectivity through an ESP32-C3 wireless module, and data visualized on a 3.5-inch SPI display or a smartphone over WiFi or Bluetooth. HealthyPi 5 specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex-M0+ microcontroller @ 133 MHz with 264 KB SRAM Wireless Module – ESP32-C3 RISC-V module with 2.4 […]

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MicroPython 1.20 released with Raspberry Pi Pico W support, mip package manager, smaller footprint

Damien George has recently announced the release of MicroPython 1.20 with support for the Raspberry Pi Pico W board., a new lightweight package manager called mip, a smaller footprint thanks to the use of compressed type structs, and many other changes. mip package manager The new mip package manager uses a custom protocol optimized for embedded systems to query and install packages, and intends to replace upip for installing packages from micropython-lib or any URL. Mip can be run directly on a device, as long as it has network connectivity, or via mpremote from a host computer. Damien explains all pure-Python drivers have been moved from the micropython repository to the micropython-lib repository as part of the change in order to make it easier to install the packages needed for a given project. MicroPython is getting smaller The MicroPython binary size has been reduced by many kilobytes for all ports […]

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ArduPico – An Arduino UNO compatible baseboard for Raspberry Pi Pico

WisdPi ArduPico is an Arduino UNO-shaped baseboard designed for the Raspberry Pi Pico and compatible boards that enables makers to reuse most 3.3V Arduino shields available on the market and also adds for few I/Os and features. ArduPico specifications: Compatible board – Raspberry Pi Pico, Pico H, Pico W, Pico WH, and other Pi Pico compatible board solderable using through holes or castellated holes Expansion Arduino UNO header compatible with a wide range of shields 5-pin and 6-pin headers for additional GPIOs and 3.3V, GND All Raspberry Pi Pico GPIOs are exposed 3.3V only, no 5V tolerant Debugging – SWD header Misc – Pico RESET key, WS2812 RGB LED Power Supply – 7 to 15V DC via DC jack Dimensions – 68.6 x 53.3 x 11.6 mm (Arduino UNO form factor) Weight – 18 grams   Compatibility with the Arduino UNO is not 100% percent as, for instance, only three […]

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Using Pico:ed V2 board as a replacement for BBC Micro:bit

We’ve received a sample of the Pico:ed V2 board developed by ELECFREAKS and will show how to use it as a replacement for the BBC micro:bit in a project using CircuitPython. We’ve already covered the board in detail with specifications, block diagram, and pinout diagram before, and it’s basically a Raspberry Pi Pico RP2040 board with BBC Micro:bit form factor including a 17×7 Dot Matrix LED display, some buttons, a buzzer, but no wireless connectivity, relying only on USB instead. CircuitPython firmware installation on the Pico:ed V2 board The board supports C/C++, MicroPython, and CircuitPython programming languages, and for this review, we’ve decided to download the CircuitPython UF2 firmware. Press and hold the BOOTSEL button after having downloaded the firmware file… … and connect the board to your computer using a USB cable before releasing the BOOSEL button on the Pico:ed V2 board, which should then show up as the […]

Rockchip RK3568/RK3588 and Intel x86 SBCs
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$7 DongshanPI-PicoW is a small Arm Linux board with SSW101B USB WiFi chip, four 12-pin headers

Based on its name, the DongshanPI-PicoW board/module aims to be an Arm Linux alternative to the Raspberry Pi Pico W with a SigmaStar SSD210 dual-core Cortex-A7 processor with 64MB RAM, an SSW101B USB WiFi 4 chip, plus a good amount of I/Os thanks to four 12-pin headers. The module also comes with a 128MB SPI flash to run Linux, takes 5V power input, and offers a display interface up to 1280×800, USB 2.0, audio interfaces, and more in a small 31×31 mm form factor with 48 through and castellated holes that should be easy to integrate into compact devices. DongshanPI-PicoW specifications: SoC – SigmaStar SSD210 dual-core Arm Cortex-A7 at up to 1.0GHz with FPU, NEON, MMU, DMA, 2D graphics accelerator, 64MB on-chip DDR2 RAM Storage – 128MB SPI NAND flash (Winbond W25N010) Connectivity – Sigmastart SSW101B 802.11b/g/n 2.4GHz 1T1R WiFi 4 module + u.FL antenna connector USB switch – Onsemi […]

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Raspberry Pi RP2040 pHAT board comes with a 40-pin GPIO header

0xC0FFEE’s RP2040 PHAT is both a Raspberry Pi RP2040 development board and a pHAT for Raspberry Pi and Pi Zero Linux SBCs that exposes the I/Os through the 40-pin GPIO header traditionally found in Raspberry Pi single board computers. The board comes with all features of the Raspberry Pi Pico board including a USB port for power and programming, an SPI flash, and a BOOT button, but also adds a Reset button. That means it’s software compatible, except for the user LED connected to GPIO 26, and works with the MicroPython and C SDKs, as well as the Arduino IDE, Zephyr RTOS, and more. RP2040 pHAT specifications: MCU – Raspberry Pi RP2040 dual-core Cortex-M0+ microcontroller @ 133 MHz with 264KB SRAM Storage – 128Mbit SPI flash (based on the chip in the photo above) USB – 1x USB 1.1 Type-C port used for power and programming Expansion – 40-pin Raspberry […]

Khadas VIM4 SBC