FreeRTOS Category - Page 16 of 23 - CNX Software

September 8, 2017September 8, 2017 by Jean-Luc Aufranc (CNXSoft) - 12 Comments

Geekcreit ESP32 Development Board Goes for $4 Shipped (Promo)

While you may have thought Wemos Lolin32 board selling for $6.9 plus shipping was already a decent deal, you can now buy a breadboard friendly ESP32 development board for the normal price of ES8266 board thanks to a promotion on Banggood selling 1,000 pieces of “Geekcreit ESP32” board for $4.09 including shipping, and valid until September 10, or while stock lasts. It looks to be roughly the same design as the fake NodeMCU ESP-32s board I once spotted: Wireless Module – ESP-WROOM-32 with Espressif ESP32 dual core processor with 802.11 b/g/n WiFi and Bluetooth 4.0 LE Expansion – 2x 19 pin headers with GPIOs, Analog inputs (ADC), UART, I2C, VP/VN, etc…; breadboard compatible USB – 1x micro USB port for power and programming Misc – BOOT and EN buttons, red (power) and blue (GPIO2) LEDs Power Supply – 5V via USB or Vin pin Dimensions – 51.4 x 28.3 mm […]

September 7, 2017 by Jean-Luc Aufranc (CNXSoft) - 9 Comments

Particle E Series is a Family of 2G, 3G, 4G LTE Cellular IoT Modules Optimized for Mass Production

Cellular IoT has really taken off this year from the low cost Orange Pi 2G IoT board to 4G GPS Trackers, and global IoT SIM cards. Particle has been in this market for a couple of years, starting with their Electron boards, and the company has just announced the new Particle E series family of industrialized 2G, 3G, and LTE-enabled modules and a development kit. Key features of Particles E series modules: Cellular Connectivity u-blox SARA modules for cellular connectivity LTE: SARA-R410M 3G: SARA-U201/U260/U270 2G: SARA-G350 (2G) Embedded SIM card, Particle MVNO support in 100+ countries u.FL antenna connector MCU – STM32F205RGT6 120MHz ARM Cortex M3 microcontroller with 1MB flash, 128KB RAM Storage – • Expandable flash memory I/Os – 63-pin surface mountable castellated module with up 30x GPIOs, 12x ADC, 2x DAC, 13x PWM, 3x UART, 2x SPI, 1x I2S, 2x CAN, 1x USB 2.0 (Some signals are multiplexed) […]

September 4, 2017September 4, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

ESPDUINO-32 & Wemos D1 R32 ESP32 Boards Support (Most) Arduino UNO Shields

The compact ESP32 NodeMCU like board are great for many project, but in case you plan to leverage your existing Arduino shield, it’s more convenient to have a compatible board. We’ve previously seen Noduino Quantum board sold for 99 RMB on Taobao, and $25.90 on AnalogLamb, but doit.am has designed a cheaper model called ESPDUINO-32 that supports shields compatible with Arduino UNO, and sold for $13.73 on DealExtreme. ESPDUINO-32 board specifications: Wireless Module – ESP-WROOM-32 based on Espressif ESP32 dual core Tensilica LX6 processor with 802.11 b/g/n WiFi and Bluetooth 4.2 LE Expansion – Arduino UNO headers with SPI, I2C, digital I/Os, 1x analog input up to 3.2V, 5V, GND USB – 1x USB device port Misc – Button Power Supply – 5 to 12V input via DC jack or Vin pin Dimensions – 66 x 53.3 x 13.5 mm The board can be programmed with the Arduino IDE selecting […]

August 22, 2017August 27, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ESP32-PICO-D4 System-in-Package Combines ESP32, 4MB SPI Flash, a Crystal Oscillator, and Passive Components

Espressif Systems has revealed another ESP32 variant, but this time it’s not an SoC, but a 7x7mm system-in-package (SIP) that comes ESP32 dual core processor, a 4MB SPI flash, a crystal oscillator and various passive components, so that you don’t need to include those in your design, and create an ultra-compact PCB for wearables and other space-constrained applications. ESP32-PICO-D4 SiP specifications: SoC – ESP32 with two Tensilica LX6 cores, 448 KB ROM, 520 KB SRAM (inc. 8KB RTC memory), 1kbit eFuse On-module Flash – 4MB SPI flash Connectivity WiFi – 802.11 b/g/n/e/i (802.11n up to 150 Mbps) Bluetooth – Bluetooth V4.2 BR/EDR and BLE specification; ; class-1, class-2 and class-3 transmitter; Audio: CVSD and SBC SIP Interfaces SD card, UART, SPI, SDIO, LED PWM, Motor PWM, I2S, I2C, IR GPIO, capacitive touch sensor, ADC, DAC, LNA pre-amplifier Sensors – On-chip Hall sensor & temperature sensor Clock – On-module 40 MHz crystal […]

August 18, 2017August 18, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Single Core ESP32-S0WD WiSoC Datasheet and Price

I’m subscribed to Espressif Systems’ notification system so that I received an email each time there’s a documentation update on their website, and this morning they posted ESP32-S0WD Datasheet, the single core version of ESP32 processor, which we reported in our post about ESP32 5×5 packages. Beside the small 5x5mm 48-pin package, and single Xtensa 32-bit LX6 microprocessor, it looks to be the same as the frequently used ESP32-D0WDQ6 with a 6x6mm 48-pin package. The CPU & Memory part of the datasheet reads: ESP32-S0WD: Xtensa single–core 32-bit LX6 microprocessor, up to 200 DMIPS 448 KB ROM 520 KB SRAM 16 KB SRAM in RTC QSPI flash/SRAM, up to 4 x 16 MB Power supply: 2.3V to 3.6V While ESP32 datasheet shows a dual core up to 600 MIPS, so maybe the max frequency is also limited. I could not find any ESP32-S0WD module or board just yet, but GridConnect is […]

August 17, 2017November 25, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

NXP i.MX RT Series Crossover Embedded Processor is Based on an ARM Cortex-M7 Core @ 600 MHz

Microcontrollers (MCUs) provide real-time processing, low power, low cost, and plenty of I/Os, but with security and user interface requirements of recent embedded devices, the processing power may be a limitation, and embedded systems designers may have to use an application processor instead gaining performance, but losing some of the benefits of MCUs. The bridge the gap between performance and usability, NXP has launched i.MX RT series of Crossover Embedded Processor which uses the powerful ARM Cortex-M7 MCU core clocked at up to 600 MHz, a frequency partially made possible by eliminating on-chip flash memory. The first member of the family is NXP i.MX RT1050 with the following key features and specifications: MCU Core – ARM Cortex-M7 @ up to 600 MHz; 3015 CoreMark / 1284 DMIPS Memory – Up to 512KB SRAM/TCM (Tighly Coupled Memory) with response time as low as 20 ns Storage – 96KB RAM; interfaces: NAND, […]

August 15, 2017August 15, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Aspencore 2017 Embedded Markets Study – Programming Languages, Operating Systems, MCU Vendors, and More

Aspencore media group asked readers of their EE Times and Embedded.com websites to fill out an online survey about their embedded system projects. They got 1,234 respondents mostly from North America (56.3%), followed by Europe (25.2%), and Asia (10.6%). This resulted in a 102-page market study which you can download here. I’ve extracted a few slides to have a look at some of the trends. C language is still the most used language in embedded systems, but other languages like C++, Python and even assembly language are gaining traction. Operating system is more spread with Linux being the most used via Embedded Linux distributions, Debian, and Ubuntu. FreeRTOS comes in second place, while Android registers fourth with 13%. Git has finally supplanted Subversion in 2017, with all other version control software losing ground. Switching to some hardware slides, 44% used a development board to start their embedded design with ST […]

June 30, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

Husarion CORE2 STM32 Board for Robotics Projects Works with ESP32, Raspberry Pi 3, or ASUS Tinkerboard

Husarion CORE2 is a board designed to make robotics projects simpler and faster to complete with pre-configured software and online management. Projects can start using LEGOs, before moving to 3D printed or laser-cut version of the mechanical parts without having to spend too much time on the electronics and software part of the project. Two versions of the board are available: CORE2 combining STM32 MCU with ESP32 WiFI & Bluetooth module, and CORE2-ROS with STM32 instead coupled to a Raspberry Pi 3 or ASUS Tinkerboard running ROS (Robot Operating System). Both solutions share most of the same specifications: MCU -STMicro STM32F4 ARM CORTEX-M4 MCU @ 168 MHz with 192 kB RAM, 1 MB Flash External Storage – 1x micro SD slot USB – 1x USB 2.0 host port with 1A charging capability; 1x micro USB port for debugging and programming via FTDI chip Expansion Headers hRPi expansion header for CORE2-ROS […]