Category: Broadcom BCMxxxx

Posted on by Jean-Luc Aufranc (CNXSoft) - 3 Comments on CaribouLite RPi HAT open-source SDR Raspberry Pi HAT tunes up to 6 GHz (Crowdfunding)

CaribouLite RPi HAT open-source SDR Raspberry Pi HAT tunes up to 6 GHz (Crowdfunding)

Raspberry Pi HAT SDR 6 GHz

CaribouLite RPi HAT is an open-source dual-channel software-defined radio (SDR) Raspberry Pi HAT – or rather uHAT – that works in the sub-GHz ISM range and optionally the 30 MHz – 6 GHz range for the full version. Developed by Israel-based CaribouLabs, the micro HAT is equipped with a Lattice Semi ICE40LP1K FPGA, a Microchip AT86RF215 RF transceiver, two SMA antenna connectors, a Pmod expansion connector, and designed for any Raspberry Pi board with a 40-pin GPIO header. CaribouLite RPi HAT specifications: FPGA – Lattice Semi ICE40LP with 1.28 kLE RF Chipset – Microchip AT86RF215 Sub-GHz / 2.4GHz transceiver Qorvo’s RFFC5072 integrated Mixer IC (for full version only) Tuning Range CH1 Full version – 30 MHz – 6 GHz ISM version – 2.4 – 2.4835 GHz CH2 – Sub-1GHz Max Sampling Rate – 4 MSPS ADC/DAC Resolution – 13-bit Max RF Bandwidth – 2.5 MHz Transmit Power – up to […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 25 Comments on Seaberry Mini-ITX carrier board for Raspberry Pi CM4 exposes 11 PCIe slots and sockets

Seaberry Mini-ITX carrier board for Raspberry Pi CM4 exposes 11 PCIe slots and sockets

SeaBerry mini-ITX motherboard Raspberry Pi CM4

The Raspberry Pi CM4 may only have a one PCIe x1 Gen 2 interface, but this has not stopped ALFTEL from designing Seaberry, a mini-ITX carrier board for the Raspberry Pi Compute Module 4 with eleven slots and sockets making use of the single 5 Gbps PCIe Gen 2 interface. The board also offers two SATA ports, one Gigabit Ethernet port, one RJ45 console port, two HDMI ports, a micro SD card slot, two USB 2.0 ports, as well as the usual 40-pin GPIO expansion header, besides the PCIe x16 slot, a PCIe x1 side slot, and M.2 and mPCIe sockets. Seaberry carrier board specifications: Compatible systems-on-module Raspberry Pi CM4 module (Regular or Lite) Radxa CM3 Pine64 SoQuartz Storage – 1x MicroSD card for Raspberry Pi CM4 Lite, 1x M.2 socket for NVMe SSD (See PCIe expansion section) Video Output – 2x HDMI output ports, 1x MIPI DSI connector Camera […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 8 Comments on 10.1-inch Raspberry Pi All-in-One touchscreen display review – Part 1: Unboxing and installation

10.1-inch Raspberry Pi All-in-One touchscreen display review – Part 1: Unboxing and installation

Raspberry Pi OS All-in-One Touchscreen Display

I’ve just received a 10.1-inch touchscreen display designed for Raspberry Pi model B boards with 1200×800 resolution from the EVICIV store on Amazon that also offers models with 1366×378 and 1920×1200 resolutions, and allows users to create an All-in-One computer based on the popular SBC. The product can also be used as a standalone display connected to an HDMI or USB-C (via DisplayPort Alt mode) source, so it could be interesting for all sorts of projects and not only ones relying on Raspberry Pi boards. In the first part of the review, I’ll check out the hardware, install a Raspberry Pi 4, and boot it to check out whether it works, before going into more details in the second part of the review. RPI All-in-One Touchscreen Display Unboxing The package lists some of the specs and highlights features of the device with a built-in stereo speaker, support for older and […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 10 Comments on Android 12 on Raspberry Pi 4 – (Almost) everything works

Android 12 on Raspberry Pi 4 – (Almost) everything works

Android 12 Raspberry Pi 4

Android 12 (AOSP) source code was released last month, and a developer took the opportunity to port Android 12 to the Raspberry Pi 4 single board computer and derivatives. More specifically, KonstaT created an unofficial build of LineageOS 19.0 for Raspberry Pi 4, Raspberry Pi 400 keyboard PC, and Compute Module 4 working on systems with at least 2GB of RAM. While it’s reserved for advanced users, the Android 12 build appears to work pretty well with most features supported including: Video HDMI display including CEC Touchscreen/multi-touch (USB touchscreens, Waveshare SPI touchscreens) Hardware-accelerated graphics (V3D, OpenGL & Vulkan) Audio HDMI, 3.5mm jack, USB microphones, Bluetooth speakers/headphones Audio DACs such as Hifiberry DAC+ Connectivity Ethernet WiFi including tethering Bluetooth including Bluetooth tethering GPS using external USB modules USB tested with USB mouse, keyboard, storage, etc… USB-C: ADB, MTP, PTP, USB tethering I/Os (GPIO, I2C, SPI) tested with Remote controls via external […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 35 Comments on Raspberry Pi OS upgraded to Debian 11 “Bullseye”

Raspberry Pi OS upgraded to Debian 11 “Bullseye”

Raspberry Pi OS Debian 11 BullsEye

Debian 11 “Bullseye” was released in August 2021, and I was expecting Raspberry Pi OS to soon get upgraded to the latest version, especially the last time around, in 2019, Raspian Buster was released even before the official Debian 10 “Buster” release, although the reason was Raspberry Pi 4 launch. This time around it took longer, but the good news is that Raspberry Pi OS has just been upgraded to Debian 11, meaning it benefits from the new features such as driverless printing, in-kernel exFAT module, “yescrypt” password hashing, and packages upgraded to more recent versions. The Raspberry Pi Foundation goes into more details about what changed in the new Raspberry Pi OS release with GTK+3 user interface toolkit, Mutter window manager replacing OpenBox in boards with 2GB RAM or more, new KMS video and camera drivers, and more. Raspberry Pi OS “BullsEye” can be downloaded from the usual place, […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 27 Comments on Raspberry Pi Zero 2 W vs Radxa Zero – Features and benchmarks comparison

Raspberry Pi Zero 2 W vs Radxa Zero – Features and benchmarks comparison

Raspberry Pi Zero 2 W vs Radxa Zero

The just-announced Raspberry Pi Zero 2 W is not the first quad-core Arm SBC following Raspberry Pi Zero form factor, and back in 2017, the Banana Pi BPI-M2 Zero was introduced for $15, and the Radxa Zero was unveiled last June with an Amlogic S905Y2 SoC with price starting at $15 as well. With its Allwinner H2+ quad-core Cortex-A7 processor clocked at 1 GHz and a price bumped up to $23, the Banana Pi M2 Zero has mostly become irrelevant, but the Radxa Zero may still be considered by some people with a 1.8 GHz processor, and options for up to 4GB RAM, so let’s see how features compare against Raspberry Pi Zero 2 W, followed by some benchmark numbers. Raspberry Pi Zero 2 W vs Raxda Zero – Features If we just look at the comparison table, the Radxa Zero is equivalent or superior in almost every way, except […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 19 Comments on Raspberry Pi Zero 2 W mini review – Benchmarks and thermal performance

Raspberry Pi Zero 2 W mini review – Benchmarks and thermal performance

Raspberry Pi Zero 2 W Heatsink

The Raspberry Pi Foundation launched the Raspberry Pi Zero 2 W board yesterday with the main difference against Raspberry Pi Zero W board being the much faster Raspberry Pi RP3A0 SiP with a Broadcom quad-core Cortex-A53 processor clocked at 1.0 GHz and overclockable to 1.2 GHz. I received my sample shortly after publishing the announcement, and I had time to test it. Since the main difference is the processor, I’ll focus this review on benchmarks and whether additional cooling is required for the board. Raspberry Pi Zero 2 W kit unboxing If you purchase the board for $15, that’s all you’ll get, but Raspberry Pi Trading sent me a kit with Raspberry Pi Zero 2 W SBC, a USB OTG adapter, a mini HDMI to HDMI adapter, the CSI camera cable, and four rubber pad for the enclosure that comes with three covers: full, hole for 40-pin GPIO header, or […]

Posted on by Jean-Luc Aufranc (CNXSoft) - 18 Comments on Raspberry Pi Zero 2 W and Zero W features comparison

Raspberry Pi Zero 2 W and Zero W features comparison

Rapsberry Pi Zero W vs Raspberry Pi Zero 2 W

The Raspberry Pi Zero 2 W quad-core board has just launched, and in this post, we’ll look at how the new board compares to the original Raspberry Pi Zero W SBC. From the photos above they are nearly identical, but looking at the detailed specifications, we’ll find some interesting differences. So the main reasons to get a Raspberry Pi Zero 2 W over a Raspberry Pi Zero W is the extra performance enabled by the quad-core Cortex-A53 processor and possibly better wireless performance. The downsides are at the new board costs $5 more, and power consumption might be higher, but this would have to be tested under various scenarios. Another reason you may end up getting the Zero 2 W board that is not shown in the specifications is the recent shortage of chips, so the new board may be more likely to be in stock at your local distributor. […]

EmbeddedTS embedded systems design