SHA2017 Conference Badge To Feature ESP32 SoC, e-Paper Display

In most conference, you’ll wear a badge showing your name, job description and company, but with the price of electronics going down, it may be time for a conference badge upgrade. SHA2017 is a non-profit outdoor hacker camp taking place in The Netherlands in 2017 on August 4 – 8, and the organizers are planning to use a special badge comprised of Espressif ESP32 processor, and an e-Paper Display. SHA2017 Badge specifications: Wireless Module – Espressif ESP32 based ESP-WROOM-32 module with WiFi and Bluetooth Display – 2.9″ e-paper display (296×128) Storage – micro SD slot Expansion – 12-pin expansion header with GPIOs, I2C, 3.3V, GND Debugging – micro USB port + USB->TTL chip for programming Misc – Direction keys, select, start, A and B buttons for input; 6x RGB, LEDs; pager motor for notifications Battery – Battery sized to last at least a day Beside your name and company details, the badge could also be used for weather and timetable …

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Getting Started with ESP32-Bit Module and ESP32-T Development Board using Arduino core for ESP32

Espressif ESP32 may have launched last year, but prices have only dropped to attractive levels very recently, and Espressif has recently released released ESP-IDF 2.0 SDK with various improvements, so the platform has become  much more interesting than just a few weeks ago. ICStation also sent me ESP32-T development board with ESP32-bit module, so I’ll first see what I got, before trying out Arduino for ESP32 on the board. ESP32-T development board with ESP-bit Module – Unboxing & Soldering One thing I missed when I asked for the board is that it was not soldered, and it comes in kit with ESP32-bit module in one package, and ESP32-T breakout board with headers in another package. The 21.5x15mm module is based on ESP32-DOWNQ6 processor with 32 Mbit (4MB) of flash, a chip antenna, and a u.FL connector. The module is apparently made by eBox, and also used in Widora board with all information (allegedly) available on eboxmaker.com website, but more on …

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Whitecat ESP32 N1 Board Combines ESP32 WiFi + Bluetooth SoC with a LoRa Transceiver, Runs Lua RTOS

Espressif ESP32 SoC is gaining traction right now as prices have come down, and there’s still an on-going fight among LPWAN standards with LoRaWAN being fairly popular in Europe. Whitecat, a group of engineers from several companies based in Citilab, Barcelona, Spain, has designed a board that combines both ESP32 and a LoRA transceiver, bringing an alternative to Pycom LoPy board, but instead of running MicroPython, they have developed Lua-RTOS. Whitecat ESP32 N1 hardware specifications: SoC – Espressif ESP32 dual-core Tensilica LX6 microprocessor @ up to 240MHz with 520kB internal SRAM Storage – 4MB flash memory Connectivity LoRa WAN transceiver working in the 868 (EU) MHz / 915 (USA) MHz with on-board antenna, and u.FL connector for external antenna Integrated 802.11b/g/n WiFi transceiver with on-board antenna, and u.FL connector for external antenna Integrated dual-mode Bluetooth (classic and BLE) I/O Headers – 2x 16-pin with SPI, I2C, I2S, SDIO, UART, CAN, ETHERNET, IR, PWM, DAC, ADC. Power Supply 3.3 to 5.5V …

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$6.90 Wemos LoLin32 ESP32 Development Board Comes with 4MB Flash, Lithium Battery Support

Wemos – the company behind the cool Wemos D1 mini ESP8266 board – has now launched its first Espressif ESP32 development board with LoLin32 equipped with ESP-WROOM-32 module with 4MB flash, a micro USB port, and a battery header. Wemos Lolin32 specifications: Wireless Module – ESP-WROOM-32 based on Espressif ESP-32 dual core processor @ 240 MHz with 4MB flash Connectivity – 802.11 b/g/n WiFi + Bluetooth LE I/Os 26x digital I/Os 12x analog inputs UART, I2C, SPI, VP/VN, DAC 3.3V I/O voltage Breadboard compatible USB – 1x micro USB port for power and programming/debugging Power – 5V via micro USB + battery header for Lithium battery (charging current: 500mA max) Dimensions – 5.8 x 2.54 cm Weight – 5.8 grams The board is not compatible with Wemos D1 mini (34.2 x 25.6 mm) and shield, but offers a more powerful solution with Bluetooth LE, battery support, and more I/Os. The Wiki is still work-in-progres, and there’s no that much information …

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Hornbill ESP32 Development Boards Come with an Optional IP67 Rated Enclosure (Crowdfunding)

While there are plenty of ESP32 development boards, and prices have recently plummeted, getting a case for your project can still be a problem especially if you plan to use it outdoor, as you need to protect your hardware from rain and dust. Hornbill project offers two ESP-WROOM-32 based boards, a prototype board, and an IP67 certified case that could be useful for outdoor use. Hornbill ESP32 Development Boards Let’s start by checking the boards available starting with ” Hornbill ESP32 Dev” board with the following specs: ESP-WROOM-32 module with WiFi, Bluetooth LE,  FCC, CE, IC, MIC (Telec), KCC, and NCC certifications I/O headers 2x 19-pin headers with GPIOs, I2C, UART, SPI, ADC, DAC, touch interface, VN/VP, 5V, 3.3V and GND Breadboard-friendly Debug – Built-in CP21XX USB-to-serial Power Supply – 5V via micro USB port, battery header + single cell LiPo charger Dimensions – TBD ESP32 Minima is also based on ESP-WROOM-ESP32 module, but is designed for wearables with its …

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New Espressif ESP32 Single and Dual Core Processors in 5x5mm Package, Optional Embedded Flash Coming Soon

Espressif ESP32 was launched last year as a dual core Tensila processor with WiFi and Bluetooth connectivity, relying on external flash for storage, and packaged into a QFN48 6x6mm package. Espressif recently updated ESP32 datasheet, and the guys at ESP32net noticed three new versions of the processor with a QFN48 5x5mm package, one version including 2 MBytes embedded flash, and another version with a single core. The three new versions of ESP32 all come with the same WiFi 802.11b/g/n ad Bluetooth 4.0 LE connectivity and a QFN 5×5: ESP32-D0WD dual core processor without embedded flash ESP32-D2WD dual core processor with 16 Mbit embedded flash ESP32-S0WD single core processor without embedded flash ESP32-D0WD different with ESP32-D0WDQ6 is only the smaller package, while ESP32-D2WD brings 2MB embedded flash too possibly lowering the price of current solution with external flash, and ESP32-S0WD might be closer to ESP8266 price thanks to its single core, while still offering Bluetooth Smart support on top of WiFi. …

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Is NodeMCU ESP-32S Board Now Selling for $8.50 Shipped?

ESP32 SoC with WiFi and Bluetooth launched last September for around $3, followed soon after by ESP32 modules for $7, and a few weeks later, easier to use ESP32 development boards were introduced, but sold for around $20 likely due a mismatch between supply and demand. That’s not overly expensive, but in a world of $4 ESP8266 boards and $10 Raspberry Pi Zero W with Linux, WiFi and Bluetooth, it may feel that way. But today, I noticed DealExtreme sold GeekWorm ESP32 board with ESP-WROOM-32 module for just $11.64 shipped. That’s good progress, but surely Aliexpress must now have cheaper options, and sure enough, I could find NodeMCU ESP-32S board (now confirmed NOT to be an official NodeMCU devkit) sold for $6.95 + shipping, which brought the price up to about $8.50. NodeMCU ESP-32S specifications: Wireless Module – ESP-WROOM-32 with Espressig ESP32 dual core processor with 802.11 b/g/n WiFi and Bluetooth 4.0 LE Expansion – 2x 19 pin headers with …

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Secure IoT Connectivity with NodeMCU ESP8266 Board, ATECC508A Crypto Chip, Mongoose OS, and AWS IoT

There are many examples of Internet of Things projects, but more often than not the implementation is not secure, either because the device is exposed to the Internet with minimum or no security (worst case), or a gateway (hopefully) provides secure connection to the Internet, but the communication between sensor nodes and the gateway in the local network is not secure, due to memory limitation of the nodes, for example it might be challenging to implement security on ESP8266. Mongoose OS is an open source operating system for the Internet of Things developed by Cesanta working on ESP32, ESP8266, STM32, and TI CC3200, and the developers have demonstrated a secure solution with Mongoose OS running on ESP8266 connecting over a TLS connection to AWS IoT (Amazon Web Service IoT) and using TLS credentials stored in Microchip ATECC508A CryptoAuthentication Device. The addition of ATECC508 chip either using “XplainedPro extension board for crypto products” (ATCRYPTOAUTH-XPRO) or ATECC508A chip itself, is to avoid …

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