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Embedded Linux and Open Hardware Leftovers

Submitted by Roy Schestowitz on Monday 21st of June 2021 06:27:47 PM Filed under
Hardware
  • Slides and videos of Bootlin talks at Live Embedded Event #2

    The second edition of Live Embedded Event took place on June 3rd, exactly 6 months after the first edition. Even though there were a few issues with the online platform, it was once again great to learn new things about embedded, and share some of the work we’ve been doing at Bootlin on various topics. For the next edition, we plan to switch to a different online platform, hopefully providing a better experience.

  • Growing for the road ahead

    The last 16 months have been challenging, to say the least. However, despite the many obstacles brought on by the pandemic, Collabora has continued delivering services to our clients, and continues to build and strengthen our engineering and administration teams for the road ahead. With over 15 years' experience in working remotely, Collabora was, and continues to be, uniquely prepared to support our customers and our teams during these challenging times.

  • Olimex STM32MP1 SoM and evaluation board support Linux 5.10 - CNX Software

    Olimex has just announced the availability of an STMicro STM32MP1 Cortex-A7/M4 powered system-on-module (SoM) and an evaluator board with respectively STMP15X-SOM available in extended and industrial temperature variants, as well as STMP1(A13)-EVB evaluation board that works with the new STM32MP1 module, as well as earlier A13-SOM Allwinner A13 based system-on-module.

    Beyond the hardware, the company told us their upcoming STMP1-OLinuXino-LIME2 SBC could support mainline Linux in February, and the company prepared some Linux 5.10 based Debian Buster and Ubuntu Focal images which are now also available for the STMP15X-SOM module.

  • $3.5 RV-Debugger Plus UART & JTAG debug board comes with BL702 Zigbee & BLE RISC-V SoC - CNX Software

    USB to UART debug boards are a necessity for anyone playing with single board computers, at least when using bleeding-edge bootloader or Linux kernel where the target board may not always boot, or when troubleshooting booting problems.

    Those are often based on FDTI or WCH chips, but Sipeed RV-Debugger Plus features Bouffalo Lab BL702 Zigbee & Bluetooth LE RISC-V SoC instead and offers both UART and JTAG interfaces. So let’s have a look at both the board and SoC.

  • Inside a transistorized shift register box, built in 1965 for Apollo testing

    One of the under-appreciated aspects of the Apollo launches to the Moon is how much testing was required. I recently came across an item that was part of this testing: the Computer Buffer Unit. It is essentially a 16-bit shift register that interfaced test equipment to the Apollo Guidance Computer. While a shift register is a trivial circuit nowadays, back then it took a box full of transistors that weighed about 5 pounds. In this blog post, I look inside this unit, describe its unusual packaging and circuitry, and explain how it works.

  • Exerscent is a remote olfactory assessment system | Arduino Blog

    The COVID-19 pandemic has highlighted the need for widespread diagnostic services that can be taken at home, especially those that relate to smell as the loss of that sense is an associated virus side effect. One team from Malmö University and Stockholm University in Sweden has come up with a system they call “Exerscent” that allows patients to test their sense of smell at home using a series of tagged odors that can be adapted over time.

    Exerscent uses an Arduino Uno and an MFRC522 NFC reader module to scan various vials of scented liquids and transmit that information to a laptop running the team’s software. Once a smell has been selected, the software guides users on not only which scent to smell first, but also how to handle them. These instructions could include commands such as where to place the vial, how far away it should be from their nose, and what to do once finished.

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