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November 18, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

HackaBLE Board is a Tiny, Breadboard-Friendly Bluetooth LE Development Board

Earlier this year, I wrote about Electronut Labs’ Bluey development board powered by Nordic Semi nRF52832 development board with BLE, NFC, and a few sensors, and partially open source hardware with the KiCAD schematics and PCB layout available on Github. The company is now back with another open source hardware nRF52832 BLE board, namely hackaBLE, that’s much smaller (28x18mm), and with 2.54mm pitch castellated pin headers making suitable for use for breadboard, or as a module on a custom designed board. hackaBLE board specifications: SoC – Nordic Semi nRF52832 ANT + BLE ARM Cortex-M4 @ 64 MHz processor with 512kB flash, 64kB RAM Connectivity – Bluetooth 4.2/5 LE and other proprietary 2.4 GHz wireless standards via chip antenna Expansion 2x 9-pin castellated headers with GPIO, 5V, 3.3V, and GND 2x 5-pin solder pads for more I/Os Debugging – 4-pin SWD header Misc – RGB LED, and user button Power Supply […]

November 1, 2017November 9, 2017 by Jean-Luc Aufranc (CNXSoft) - 240 Comments

Giveaway Week – ESP32 PICO Kit v3 Boards

I don’t have one, but eight boards to give away to four winners (2 each) with Espressif Systems ESP32 PICO Kit v3 board based on ESP32-PICO-D4 SIP, an all-in one package with ESP32, 4MB SPI flash, crystal oscillator, and passive components, which allows for smaller boards. The board is very similar to any other ESP32 boards, and software compatible, but it’s just quite thinner, and easier to work with on breadboards. Since I had already played with Arduino Core and Espruino (JavaScript) on other boards, I used one of the 10 boards provided by Espressif to play with Micropyhon on ESP32. Each winner will get two ESP32 PICO Core board in order to make it worthwhile with regards to shipping costs. To enter the draw simply leave a comment below. Other rules are as follows: Only one entry per contest. I will filter out entries with the same IP and/or […]

October 13, 2017 by Jean-Luc Aufranc (CNXSoft) - 25 Comments

This TTGO Board Combines ESP32, LoRa Radio, and OLED Display for just $10

Just one year ago, it would cost around $15 to $20+ to get an ESP32 board, that is if you were lucky/fast enough to order one one before it went out of stock. Since then, availability is no longer an issue, and you now can get an ESP32 development board for as low as about $7, or even around $4 during promotions. Today, I was made aware of another board sold under the “TTGO” brand, that includes not only ESP32 WiFi and Bluetooth SoC, but also a (433 MHz) LoRa radio, and an OLED display. Price? Just $10 plus shipping ($1.75 here). TTGO ESP32/LoRa board specifications: WiSoC – Espressif ESP32 Storage – 32MB on-board flash (or maybe just 16MB?) LoRa Semtech SX1278 with u.FL connector + 433MHz antenna (N.B.: Antenna must be connected during use or the Semtech chip could be damaged) Sensitivity” ~ -148dBm; output power: +20dBm Display – […]

October 2, 2017October 4, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

STMicro BlueNRG-MESH SDK for Bluetooth Mesh to Include Code for Firmware, Android and iOS Apps

Earlier this summer, the Bluetooth SIG announced Bluetooth Mesh, which supports many-to-many (m:m) device communications for up 32,767 unicast addresses per mesh network (in theory), and is compatible with Bluetooth 4.0 or greater hardware. Several companies immediately unveiled Bluetooth Mesh SDK at the time including Qualcomm, Nordic Semi, and Silicon Labs. ST Micro has now unveiled their own BlueNRG-MESH SDK which the company claims is “the market’s only three-part SDK that provides two app developer packages for Android and iOS, and the embedded-development software for building smart objects such as light fittings and sensors”. Sadly, details about the SDK are near inexistent now, except – as one would expect – BlueNRG-MESH SDK will work with ST BlueNRG Bluetooth low energy wireless network processor based on an ARM Cortex M0 core, and corresponding development kits. [Update: STSW-BNRG-Mesh page has many more details about the SDK including the architecture diagram below. ] […]

October 2, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

HeartyPatch is an Open Source Wireless ECG Patch Powered by ESP32 WiSoC (Crowdfunding)

Smart health gadgets will soon have a bigger part to play in our lives, especially for health monitoring. It mainly started with fitness trackers, but now we are starting to see connected devices such as blood pressure monitors, including the upcoming watch like Omron HeartVue, thermometer, scales, vital sign monitoring systems, certified medical SBC‘s to allow engineers to developer their own medical applications, and even open source surgical robots. HeartPatch is one of those medical board that specifically aims at measuring ECG data, and sent it over Bluetooth or WiFi thanks to Espressif ESP32 WiSoC. HeartPatch specifications: SoC – Espressif Systems ESP32 dual core Tensilica LX6 processor with Wi-Fi/Bluetooth ECG Chip – Maxim MAX30003 analog front-end USB – 1x micro USB connector for programming, data, power, and battery charging Debugging – USB-UART bridge based on CP2104 Misc – Onboard Snap-on Buttons for disposable electrode pads, RGB LED, Battery – 450 […]

September 27, 2017September 27, 2017 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

TECHBASE Moduino X Series Industrial IoT Modules / Endpoints are Based on ESP32 WiSoC

We’ve previously covered TECHBASE ModBerry industrial IoT gateways leveraging Raspberry Pi 3, FriendlyELEC NanoPi M1 Plus, or AAEON’s UP Linux boards. The company has now launched Moduino X series modules powered by Espressif ESP32 WiFi + Bluetooth SoC to be used as end points together with their ModBerry gateways. Two models have been developed so far, namely Moduino X1 and X2, with the following specifications: Wireless Module – ESP32-WROVER with ESP32 dual-core Tensilica LX6 processor @ 240 MHz, 4MB pSRAM (512KB as option), 4MB SPI flash; External Storage – X2 only: micro SD card slot Connectivity 802.11 b/g/n WiFi up to 16 Mbps + Bluetooth 4.2 LE with u.FL antenna connector X2 only: 10/100M Ethernet Options: LoRa (Semtech SX1272); Sigfox (TI CC1125); LTE Cat M1/NB1; Zigbee Serial – 2x RS-232/485 Display – Optional 0.96″ OLED display with 128×64 resolution Expansion I/Os 4x Digital I/O (0 ~ 3V) 2x Analog Input: […]

September 26, 2017 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linaro Connect SF 2017 Welcome Keynote – New Members, Achievements, the Future of Open Source, and More…

Linaro Connect San Francisco 2017 is now taking place until September 29, and it all started yesterday with the Welcome Keynote by George Grey, Linaro CEO discussing the various achievements since the last Linaro Connect in Budapest, and providing an insight to the future work to be done by the organization. The video is available on YouTube (embedded below), and since I watched it, I’ll provide a summary of what was discussed: Welcoming New Members – Kylin (China developed FreeBSD operating systems) joined LEG (Enterprise Group), NXP added LHG (Home Group) membership, and Xilinx joined LITE (IoT and Embedded). Achievements OPTEE open portable trusted environment execution more commonly integrated into products. Details at optee.org. LEG 17.08 ERP release based on Linux 4.12, Debian 8.9 with UEFI, ACPI, DPDK, Bigtop, Hadoop, etc… LITE group has been involved in Zephyr 1.9 release, notably contributing to LwM2M stack More projects to be found […]

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 […]