STMicro STM32 Category - Page 11 of 42 - CNX Software

April 29, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

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 […]

April 22, 2023April 23, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

HARDWARIO CHESTER – A configurable Zephyr OS LPWAN IoT gateway with LoRaWAN, LTE IoT, GNSS connectivity

HARDWARIO CHESTER platform is a configurable LPWAN IoT gateway whose main function is to connect as many devices and environments as possible to the Internet using connectivity such as LoRaWAN, LTE Cat M1, or NB-IoT, as well as GNSS for geolocation. Contrary to most IoT gateways, it does not run Linux on an application processor, and instead, the “brain” of the CHESTER IoT gateway is a Raytac Bluetooth 5.0 module based on a Nordic Semi nRF52840 Arm Cortex-M4 microcontroller running Zephyr real-time operating system, which connects to LTE IoT modem and a LoRaWAN module through UART, and expansion modules through I2C, 1-wire, and GPIO interfaces. HARDWARIO CHESTER specifications: Wireless modules/chips Raytac MDBT50Q-P1MV2 Bluetooth 5.0 module based on Nordic Semi nRF52840 Arm Cortex-M4F MCU with 1MB Flash memory, 256kB RAM Nordic Semi nRF9160-SICA-B1A-R7 LTE-M/NB-IoT system-in-package (SiP) with Arm Cortex-M33 MCU, 1024 KB flash, 256 KB SRAM Murata CMWX1ZZABZ-078 LoRa module as […]

April 19, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

EVerest is an open-source software stack for car charging stations

EVerest open source car charging station software

EVerest is a software project initiated by PIONIX GmbH, but now part of the Linux Foundation’s LFEnergy initiative, whose primary goal is to develop and maintain an open-source software stack for EV charging infrastructure. EVerest supports multiple standards and it will run on any device from AC home chargers to public DC charging stations. I noticed the EVerest project in an upcoming talk at the Embedded Open Source Summit 2023 entitled ” EVerest: Electric Vehicle Chargers With Open Hardware and Software” and whose abstract reads in part: You will learn how to build your own electric vehicle charger using open hardware designs in combination with the EVerest open-source software stack for EV charging infrastructure. Following a quick introduction to EV charging technology, with explanations of the standards, protocols, and complexities involved, the talk will go into a deep dive into how you can build your own AC charging station. Reference […]

April 14, 2023 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Embedded Open Source Summit 2023 schedule – Zephyr OS, Security, IoT, Embedded Linux, and more

The Linux Foundation has just announced the full schedule for the Embedded Open Source Summit, which will take place on June 27-30, 2023 in Prague, Czech Republic, as well as virtually starting on June 26. Over 175 sessions, birds of a feather (BoF) tracks, and workshops related to embedded and open-source innovation will be presented at the event itself comprised of six micro conferences: Automotive Linux Summit Europe, Embedded IoT Summit, Embedded Linux Conference, LF Energy Embedded Summit, Safety-Critical Software Summit, and Zephyr Project Developer Summit. Even though I’m not going to attend personally, I’ve gone through the schedule to create my own little virtual schedule with some sessions relevant that should be interesting to me and hopefully to CNX Software readers. Monday, June 26 (Virtual sessions) The first day of the event will have a Yocto Dev training in the morning, and a bunch of virtual sessions that are […]

April 11, 2023 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

ST87M01 NB-IoT & GNSS module targets global cellular IoT deployments, asset tracking applications

STMicro ST87M01 is a compact, low-power, programmable LTE Cat NB2 (NB-IoT) industrial cellular module with GNSS geo-location capability for “massive IoT” deployments and asset tracking applications. STMicro already had several LPWAN solutions such as the STM32WL LoRa SoC, a Wi-SUN transceiver, a few SigFox chips, and a bunch of proprietary sub-GHz chips, but no cellular IoT solutions of their own although the STM32 microcontroller can be found in many third-party solutions. The ST87M01 NB-IoT and GNSS module changes that, so let’s have a closer look. ST87M01 NB-IoT module specifications: Cellular LTE, Category NB2, Release 15 Worldwide regional bands coverage Single-tone / Multi-tone / Extended TBS and 2 HARQ Up to DL: 127 kbps, UL: 159 kbps eDRX and PSM support Up to +23 dBm power output Optional ST4SIM embedded SIM (eSIM) GSMA compliant with an additional Secure Element GNSS capability Expansion – Multiple I/F and GPIO Host communication – standardized […]

March 31, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

STMicro STLINK-V3PWR debugging & programming probe supports power measurement

STMicro STLINK-V3PWR is a new in-circuit debugging and programming probe made for STM32 microcontrollers and that is said to provide accurate power measurement. The probe is especially useful for battery power IoT and wireless applications and is able to measure current values from nanoamps up to ~500mA with up to ±0.5% accuracy. The STLINK-V3PWR can also power the target over a single USB cable up to 2A. STMicro STLINK-V3PWR key features and specifications: 1‑Quadrant source measurement unit: Programmable voltage source from 1.6 to 3.6 V Output current rating 500 mA with over-current protection (OCP) at 550 mA Programmable sampling rate from 1 SPS to 100 kSPS Dynamic measurement 100 nA to 550 mA current 160 nW to 1.65 W power measurements 50 kHz bandwidth 1.6 MHz acquisition / 2% accuracy Compatible with EEMBC ULPMark tests Auxiliary output voltage source from 1.6 to 3.6 V under up to 2 A (no current measurement, OCP at 2.5 A) Debugging of […]

March 14, 2023March 14, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

Digi ConnectCore MP13 SoM with STM32MP13 MPU embeds Wi-Fi 5 and Bluetooth 5.2 module

Digi International ConnectCore MP13 system-on-module (SoM) is powered by the just-announced STMicro STM32MP13 Cortex-A7 microprocessor and integrates a pre-certified WiFi 5 and Bluetooth 5.2 module for applications in the medical, smart energy, and industrial sectors. The module is also equipped with up to 1GB RAM and 1GB SLC NAND flash, and exposes I/Os through LGA pads and/or castellated holes with interfaces such as dual GbE, USB 2.0, I2S and SPDIF for audio, CAN FD, analog inputs, and more. Contrary to the company’s earlier Digi ConnectCore MP15 based on STM32MP15 MPU, the MP13 does not provide multimedia functions, display, and camera interfaces. Digi ConnectCore MP13 specifications: SoC – STMicro STM32MP13x single-core Arm Cortex-A7 processor @ 650 MHz (only STM32MP133C at this time) System Memory – Up to 1GB DDR3 Storage – Up to 1GB SLC NAND flash Wireless – Optional pre-certified Wi-Fi 5 802.11a/b/g/n/ac up to 433.3 Mbps and Bluetooth 5.2 […]

March 10, 2023March 11, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

STMicro introduces cost-optimized STM32MP13 Cortex-A7 microprocessor

STMicroelectronics’ STM32MP13 1 GHz single-core Arm Cortex-A7 microprocessor series is the latest addition to the Linux-capable STM32MP1 family, with a cost-optimized design that does without the Cortex-M4 real-time core found in the original STM32MP15 series, while still offering Ethernet, CAN FD, camera and display depending on the specific SKU: STM32MP131, STTM32MP133, or STM32MP135. STM32MP131 The STM32MP131 is a single-core Cortex-A7 core clocked at 650 MHz or 1GHz with Ethernet connectivity and is the most cost-effective part of the new STM32MP13 series. Four parts are available in three different packet sizes (TGBGA 289, TFBGA 320, and LFBGA 289) as well as some parts with “advanced security features” that include a cryptographic accelerator, memory protections, code isolation mechanisms for runtime protection, functions to ensure platform authentication, and a complete security ecosystem. The STM32MP131 can run entry-level Linux, bare metal or RTOS systems with Microsoft Azure RTOS pre-integrated. STM32MP133 The STM32MP133 single-core Cortex-A7 […]