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July 16, 2018 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

KidBright32 Board is Thailand’s BBC Micro:Bit Equivalent

BBC Micro:Bit board was first announced in July 2015. Designed for STEM education, the board was then offered to UK schools in March 2016, and a few months later UK store would start selling it worldwide. It’s now available pretty much anywhere, and you can likely find it in a local store or online. The Thai government must have seen this, and thought to themselves “If the British can do it, we can do it too!”, as the National Electronics and Computer Technology Center (NECTEC) part of Thailand’s Ministry of Science and Technology designed KidBright32 board and courses to teach STEM to Thai students. The board is based on Espressif Systems ESP32-WROOM-32 WiFI and Bluetooth module, and comes with large holes for power (5V/GND) and 6 digital inputs/outputs, smaller through holes for I2C and more I/Os, as well as an I2C header. We’ll also find some LEDs, two dot matrix […]

July 5, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

ESP32-SOLO-1 is a Single Core ESP32 WiFi and Bluetooth Module

Espressif ESP32 is popular dual core processor with built-in WiFi and Bluetooth connectivity, except as we’ve seen last year, the company also developed a single core version with ESP32-S0WD chip, whose price is only slightly more expensive than ESP8266. But so far, I had not seen many hardware platforms announced with the single core version, with the exception of Particle Argon board. But I believe we should soon see more ESP32-S0WD boards brought to market, since Espressif Systems has now announced ESP32-SOLO-1 single core module. ESP32-SOLO-1 wireless module specifications: SoC – Espressif ESP32-S0WD single core Tensilica Xtensa LX6 processor @ up to 160 MHz with 448 KB ROM, 520KB on-chip SRAM, and 16KB SRAM in RTC Storage – 4MB SPI flash Connectivity 2.4 GHz 802.11 b/g/n WiFi up to 150 Mbps Bluetooth 4.2 LE + EDR I/Os – SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, […]

July 4, 2018 by Jean-Luc Aufranc (CNXSoft) - No Comments

BOSON Kits Feature LEGO Compatible Building Blocks for STEM Education

Last year, DFRobot successfully introduced BOSON Kit “Powerful Building Blocks For LEGO STEM”via Kickstarter, and I’ve just noticed the company is now selling two BOSON Kits on their website: BOSON Science Kit for $149 BOSON Inventor Kit for $249 The kits are plug and pay and do not require coding, nor soldering. The modules come with built-in magnets, or they can be attached with screws, Velcro or to LEGO parts. BOSON modules are based on Intel Curie BLE modules, but those are being phased out, so you may want to inquire DFRobot if long term availability / appropriate stock is a concern. BOSON Science Kit As its name gives away, the kit is a set of exploration tool for aspiring young scientist with the following items: 8 scientific sensors for physics, chemistry and biology: Light sensor Humidity sensor Soil moisture sensor Temperature sensor Waterproof temperature sensor pH sensor (That’s the […]

June 28, 2018April 13, 2021 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Visual Studio 2017 with an Embedded Linux Arm Device

This is a non-sponsored guest post written by Marc Goodner: Principal Program Manager, Microsoft, and Jeremias Cordoba: Innovation Engineer, Toradex. Today many embedded devices run some flavor of Linux as their primary operating system. This poses a challenge to developers who run Windows on their development machine. This article explains a new way to use the latest Visual Studio for C++ development on an embedded Arm Devices from a Windows Host PC using containers for the build environment. The device we are deploying to is from the Toradex Colibri Family of System on Modules using the NXP i.MX 6ULL SoC, which features an Arm Cortex A-7. As a demo project, we will connect a Bluetooth Sensor with the Toradex Colibri Module. Please note that Visual Studio support for this case is in an early state, you will see improvements from Microsoft and Toradex in the coming months. Prerequisites Colibri i.MX 6ULL […]

June 15, 2018June 26, 2018 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Wemos LOLIN D32 Pro ESP32 Board Supports TFT Displays, Comes with a micro SD Card Slot

Wemos is popular for their low cost WiFi board based on Espressif SoCs. Their most popular board is ESP8266 based Wemos D1 mini thanks to its compact form factor, low price ($5 shipped), and available add-on boards. But they’ve also launched some ESP32 in the last year or so with development boards such as Wemos LOLIN32 Lite. Their latest ESP32 board – LOLIN D32 Pro v2.00 – features ESP32-WROVER module, and beside exposing I/Os via breadboard compatible headers, also offers a micro SD card slot, a TFT display connector, and an I2C header. LOLIN D32 Pro specifications: Wireless module – ESP32-WROVER 802.11 b/g/n WiFi + Bluetooth 4.1 LE module with 4MB Flash, 4MB PSRAM Storage – micro SD card slot supporting SPI mode Display I/F – TFT display connector USB – 1x micro USB port for programming and power Expansion 2x 16-pin headers with GPIOs, SPI, I2C, UART, ADC, DAC, […]

May 14, 2018May 14, 2018 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Arduino Introduces Two New IoT Boards – MKR WiFi 1010 (ESP32) and MKR NB 1500 (NB-IoT + eMTC)

Arduino introduced its MKR family of breadboard compatible maker boards with MKR1000 featuring an Atmel SAMD21 microcontroller combined with a Microchip WINC1500 WiFi module. The board was followed by MRKZero without wireless connectivity, then MKRFOX1200 Sigfox board, and finally MKR WAN 1300 & MKR GSM 1400 boards at the end of 2017 with LoRaWAN and 3.75G cellular connectivity. The company has now launched two new boards: Espressif ESP32 based MKR WiFi 1010 with WiFi and Bluetooth, and MKR NB 1500 equipped with an NB-IoT & LTE CAT M1 module. Arduino MKR WiFi 1010 MKR WIFI 1010 is an evolution of the MKR1000 board, and is equipped with a U-Blox ESP32 module. Preliminary specifications: MCU – Microchip SAMD21 Cortex-M0+ MCU @ 48 MHz with 32KB SRAM, 256 KB flash memory Wireless Connectivity – 2.4 GHz 802.11 b/g/n WiFi and Bluetooth 4.2 LE via U-blox NINA-W10 Series module based on ESP32 processor. […]

May 2, 2018May 2, 2018 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Ebyte Offers Low Cost Wireless Modules for LoRa, Zigbee, NB-IoT, Bluetooth, and More

Chengdu Ebyte Electronic Technology Ltd (or just Ebyte for short) is a company based in Western China that design and manufacturer low cost wireless modules for LoRa, WiFi, Bluetooth, Zigbee, NB-IoT & GPRS cellular connectivity, many of which appear to be FCC certified. The list of modules is way too long, so I’ll just have a look at two products from the company: Ebyte E32-915T20D LoRa 915 MHz module and Ebyte ME3612 NB-IoT wireless module. Ebyte E32-915T20D LoRa 915 MHz module Specifications: Connectivity Semtech SX1276 LoRa 900~931MHz (default: 915 MHz), 32 channels Range – up to 3 km with 20 dBm power, 5 dBi antenna Data rate – 2.4 kbps (default), configurable to 0.3, 1.2, 2.4, 4.8, 9.6, 19.2 kbps Rx Sensitivity – -138dbm at 0.3kbps Expansion – 7-pin header 2.54mm pitch with UART, USART host interface Power Supply – 2.1 to 5.5V DC Power Consumption – Standby: 2.0 uA; Tx: 120 mA […]

April 30, 2018February 21, 2023 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

TTGO T5 is an ESP32 WiFi + Bluetooth Board with ePaper Display and Speaker

Lilygo has made another ESP32 board part of their TTGO family with TTGO T5 board powered by Espressif System ESP32 WiFI & Bluetooth SoC, and offering a choice of ePaper displays from 1.54″ to 2.9″, as well as built-in speaker. TTGO T5 board specifications: SoC – Espressif ESP32 dual core Tensilica LX6 processor with WiFi 802.11 b/g/n and Bluetooth 4.1 LE Storage – micro SD card slot Display (one of the other) 1.54″ 200×200 black & white ePaper display; Full refresh time – 2 seconds 2.13″ 250×122 black & white ePaper display; Full refresh time – 2 seconds 2.7″ 264×176 black & white ePaper display; Full refresh time – 6 seconds 2.9″ 296×128 black & white ePaper display; Full refresh time – 2 seconds Viewing angle – >170° Power Consumption – Refresh: 26.4mW(typ.); standby: <0.017mW Connected via SPI interface Audio – Mini Speaker Expansion – 24-pin header with GPIO, UART, […]