Raspberry Pi News - Page 41 of 151 - CNX Software

May 25, 2022May 25, 2022 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Microchip SAMA7G54 is a single-core Arm Cortex-A7 microprocessor for low power AI camera & audio applications

Microchip has just announced the 1 GHz SAMA7G54 single-core Arm Cortex-A7 microprocessor (MPU) with MIPI CSI-2 and parallel camera interfaces, as well as up to four I2S, one SPDIF transmitter and receiver, and a 4-stereo channel audio sample rate converter. The company specifically launched a single-core processor to offer a lower power solution for AI camera and audio solutions, and the chip is coupled with the MCP16502 power management IC that has been optimized to provide the best power/performance ratio for the SAMA7G54. Microchip SAMA7G54 specifications: CPU – Arm Cortex-A7 based MPU @ up to 1GHz with 256KB L2 cache Memory – DDR2/DDR3/DDR3L/LPDDR2/LPDDR3 up to 533MHz Storage – Quad SPI, Octal SPI, 3x SD/eMMC Camera I/F – MIPI CSI-2 (2-lane up to 1.5 Gbps each) and 12-bit parallel camera Up to 8 Mpixel @ 30 fps Audio – Up to 4x I2S, PDM, SPDIF (Rx/Tx), 4 stereo channel ASRC Networking […]

May 23, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Linux 5.18 release – Main changes, Arm, RISC-V, and MIPS architectures

Linux 5.18 is out! Linus Torvalds has just announced the release on lkml: No unexpected nasty surprises this last week, so here we go with the 5.18 release right on schedule. That obviously means that the merge window for 5.19 will open tomorrow, and I already have a few pull requests pending. Thank you everybody. I’d still like people to run boring old plain 5.18 just to check, before we start with the excitement of all the new features for the merge window. The full shortlog for the last week is below, and nothing really odd stands out. The diffstat looks a bit funny – unusually we have parsic architecture patches being a big part of it due to some last-minute cache flushing fixes, but that is probably more indicative of everything else being pretty small. So outside of the parisc fixes, there’s random driver updates (mellanox mlx5 stands out, […]

May 19, 2022May 23, 2022 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

$30 compact multi-sensor board works with any microcontroller with I2C (Crowdfunding)

SENSE is a compact multi-sensor board supporting measurement of air quality, sound, light intensity, temperature, proximity, etc… and designed by Zack Seifert, a seventeen-year-old electronics enthusiast and president of his school’s robotics team. SENSE can work with any microcontroller or processor with I2C (hardware or implemented with bit-banging), including Arduino and Raspberry Pi boards. and an extra Qwiic connector allows for additional sensors. SENSE board specifications: Storage – MicroSD card holder Sensors

May 18, 2022May 18, 2022 by Jean-Luc Aufranc (CNXSoft) - No Comments

Exo Sense RP – A Raspberry Pi RP2040-based multi sensor module

Sfera Labs Exo Sense RP is a multi-sensor module with a Raspberry Pi RP2040 microcontroller and various sensors to report temperature, humidity, air quality (VOC), light intensity, audio, and motion. The module can work as a standalone unit but can also communicate with a host through RS485 and USB interfaces, and supports expansion via surge-protected digital inputs and outputs. The Exo Sense RP is designed for indoor residential and commercial applications such as environmental monitoring and data logging, people and assets tracking, room management, access control, and more. Exo Sense RP specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex M0+ @ 133 MHz with 264KB SRAM Storage – 16MB flash memory Communication ports RS485 half-duplex up to 115200 bps, with surge protection Micro USB 1.1 Type-B connector Sensors Sensirion SHT40 temperature and humidity sensor Sensirion SGP40 air quality (VOC) sensor Texas Instruments OPT3001 light intensity sensor TDK ICS-43432 digital […]

May 18, 2022May 18, 2022 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

PikaScript – A lightweight Python implementation that runs on STM32 and other low-end MCUs

PikaScript is an ultra-lightweight Python engine that can run on microcontrollers with as little as 4KB of RAM and 32KB of Flash, while the more popular MicroPython requires at least 256kB of code space and 16kB of RAM. PikaScript was initially developed to run on STM32G030C8 and STM32F103C8 MCUs, meaning, for example, it works on the BluePill board, but it has also been ported to other platforms like WCH CH582 RISC-V MCU, WinnerMicro W806 C-Sky microcontroller, as well as other like Raspberry Pi RP2040, ESP32-C3, etc… but those are not quite as well supported with some features missing. PikaScript also permits the binding C function to a Python module through Pika Pre-compiler. PikaScript can run bare metal on the microcontroller, but also supports real-time operating systems such as RT-Thread and VSF (Versaloon Software Framework), as well as Linux. Just like MicroPython, it’s using a subset of Python 3, but I’d […]

May 17, 2022May 17, 2022 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

Turing Pi 2 mini-ITX cluster board supports RK3588 based Turing RK1, Raspberry Pi CM4, and NVIDIA Jetson SoMs (Crowdfunding)

We first covered the Turing Pi V2 mini-ITX cluster board supporting up to four Raspberry Pi CM4 or NVIDIA Jetson SO-DIMM system-on-module in August 2021. The company has now launched the Turing Pi 2 on Kickstarter with a little surprise: the Turing RK1 module with Rockchip RK3588 Cortex-A76/A55 processor and up to 32GB RAM. The board allows you to mix and match modules (e.g. 3x RPi CM4 + 1x Jetson module as on the photo below), and with SATA ports, Gigabit Ethernet networking, USB 3.0 ports, mPCIe socket, you could build a fairly powerful homelab, learn Kubernetes, or self-host your own apps. Turing Pi 2 specifications: SoM interface – 4x 260-pin SO-DIMM slots for up to four Raspberry Pi CM4 with Broadcom quad-core Cortex-A72 processor, up to 8GB RAM, up to 32GB eMMC flash (adapter needed) NVIDIA Jetson Nano/TX2 NX/Xavier NX SO-DIMM system-on-modules with up to 6x Armv8 cores, and […]

May 10, 2022May 11, 2022 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Mini keyboards launched with ESP32-C3 or Raspberry Pi RP2040 MCU

Tiny Keyboards Raspberry Pi RP2040 or ESP32-C3

Last week, when I saw LilyGO T-Keyboard based on ESP32-C3, I didn’t think much of it and did not expect many people to be interested, so I skipped it. But earlier today I also noticed Solder Party launched a very similar-looking product – the BB Q20 Keyboard with Trackpad – based on Raspberry Pi RP2040 MCU. So after all, it might be worthwhile to look into those mini keyboards for makers. LilyGO T-keyboard Hardware specifications: SoC – ESP32-C3 single-core RISC-V processor with Wi-Fi 4 and Bluetooth 5.0 LE connectivity Display – 0.99-inch TFT color LCD QWERTY keyboard Battery – 400mAh built-it battery Power Supply – 5V via USB port Dimensions – 6.9 x 5.3 x 1.7 cm The company promotes it as a mini Bluetooth keyboard for iOS and Android smartphones, as well as Windows machines, but also has plans to make it work with their T-Echo LoRa messaging hardware. […]

May 5, 2022February 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Badger 2040 is a programmable E-Ink display powered by Raspberry Pi RP2040

Pimoroni Badger 2040 is a Raspberry Pi RP2040 board equipped with a 2.9-inch black and white E-Ink display with 296 x 128 resolution and programmable with C/C++, MicroPython, or CircuitPython. The board is not just an ePaper badge, as it also comes with five buttons, and expansion capability through a Qwiic/STEMMA QT connector plus some pads with UART, I2C, interrupt, and power signals. Badger RP2040 specifications: MCU – Raspberry Pi RP2040 dual-core Arm Cortex M0+ running at up to 133Mhz with 264kB of SRAM Storage – 2MB QSPI flash Display – 2.9-inch B&W E Ink display with 296 x 128 pixels resolution, ultrawide viewing angles, ultra-low power consumption; Dot pitch – 0.227 x 0.226 mm USB – 1x USB Type-C port for power and programming Expansion Qwiic/STEMMA QT connector 10 pads with I2C, an interrupt pin, UART, SWC/SWD, 3.3V, GND Misc 5x front user buttons Reset and boot buttons (the […]