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September 6, 2019September 6, 2019 by Stephen Vicinanza - 3 Comments

Mastak Modular Air Quality Monitor Kit Supports CO2, Dust, Formaldehyde, Ozone and other Sensor Modules

The Mastak Indoor Air Quality Monitor Kit Medium Systems Limited, a UK company has released the Mastak, SoMs designed in a mechanical range that allows for indoor air quality monitoring, with a data IoT cloud service, and communications that include NB-IoT, 5G, WiFi, BLE, and LTE-M. The system is a new addition to the air monitoring market place. There have been reports on other air quality monitors in past articles that covered quick start and user experience with Sonoff SC WiFi, vThings WiFi CO2 Monitor, and the ANAVI Gas Detector. The Specs The ecological modules are all compatible and contain processor, peripherals and the sensors for data monitoring and collection, as well as the necessary power electronics. The modules were designed too and allow the user to arrange the systems into custom arrangements and place in unique form factors. There are a number of options also, for even further expandability […]

September 2, 2019September 2, 2019 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Espressif ESP-Skainet Voice Assistant Offers Wake Word Engine and Speech Commands Recognition for Embedded MCUs

Skynet is finally here! OK, not quite, but at least we do have ESP-Skainet now courtesy of Espressif Systems. ESP-Skainet is an intelligent voice assistant that features the company’s WakeNet wake word engine and MultiNet speech commands recognition. WakeNet WakeNet has been specifically designed for low-power MCUs such as ESP8266 or ESP32 with a low memory footprint (20KB RAM) and a high calculation speed that makes it capable of achieving a high success rate for wake word detection even in noisy environments. Tested in the company’s upcoming LyraT-Mini audio board that combines an ESP32-WROVER-B module and a codec, WakeNet achieves a 97% wake word success rate at a one-meter distance, and 95% three meters away in a quiet environment. ESP-Skainet wake-up engine ships with the wake-up word “嗨乐鑫” (Hi Lexin), which translates in “Hello Espressif”, and supports up to five wake words. You can use customize wake words as well, […]

August 30, 2019March 15, 2020 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ULX3S Education Board is Powered by Lattice Semi ECP5 FPGA & ESP32 WiFi/BLE Module

ULX3S Lattice ECP5 FPGA Educational Board

A few days ago, we covered the KiCAD designed OrangeCrab open-source hardware board powered by a Lattice Semi ECP5 FPGA, and compliant with Adafruit Feather form factor. It’s turned out there’s another Lattice Semi ECP5 FPGA board that’s also designed with KiCAD and open source hardware. Radiona ULX3S differs are it’s larger and exposes more I/Os since it was specifically designed to meet the meets of the digital logic course at the Faculty of Electrical Engineering and Computing (FER) of the University of Zagreb in Croatia. ULX3S specifications: FPGA – Lattice ECP5 LFE5U-85F-6BG381C with 84K LUT System Memory – 32MB SDRAM @ 166 MHz Storage – 4–16MB Quad-SPI Flash for FPGA config and user data storage; MicroSD slot Audio – 3.5 mm jack with 4 contacts (analog stereo + digital audio or composite video) Video – Digital video (GPDI General-Purpose Diferential Interface) with 3.3V-5V I2C bidirectional level shifter Display – […]

August 25, 2019 by Ayo Ayibiowu - 4 Comments

ESP32-MeshKit is a Development Kit for ESP32 Mesh Networking

The ESP8266 was a jewel in its peak, it ruled the maker’s world in the need for creating a low-cost WiFi module. Being Arduino compatible also furthered its glory then the ESP32 came in. ESP32 offered so much more than the ESP8266, and most importantly it was also affordable. With support for Bluetooth and WiFi, ESP32 was to open a new frontier for the development of Internet of Things applications. A major drawback of the affordable ESP32 was the lack of official support of mesh network for the chip, something that was easily possible with the ESP8266. Mesh network allows you to build a network of nodes that can communicate with each other, self heal, and many more possibilities. But thankfully, back in 2018, Espressif Systems released the ESP Mesh Development Framework (ESP-MDF) which sits on top of the IoT Development Framework (ESP-IDF), the official development framework for the chip. […]

August 20, 2019August 20, 2019 by Siji Sunny - 5 Comments

mDash Cloud platform for IoT Devices Targets ESP8266/ESP32, STM32, and TI CC3220 Wireless MCUs

Cesanta (a company based in Dublin, Ireland) recently launched mDash – an IoT cloud platform for administration of various IoT modules. This platform supports Espressif’s modules ESP32 & ESP8266, STM32 (L4,M4) and TI CC3220, and offers a bunch of features which are known to be challenging tasks in the IoT world. This includes OTA (Over-The-Air) firmware updates, remote configuration and administration, alerts and notifications, remote device control and file management. This can be achieved through 3 programming platforms – Arduino IDE, ESP-IDF and through Mongoose OS. For evaluation and testing purpose mDash offers a simulator that run as a docker container. Refer our previous post, to understand how to get started with Cesanta’s Moongoose OS for ESP8266. Basic WorkFlow mDash Library The company offers reference firmware/library for the defined hardware platforms. This been implements by using secure MQTT for communication, re-connection and initial provisioning with mDash cloud. You can find […]

July 25, 2019July 26, 2019 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Espressif Systems Gets Listed on the Shanghai Stock Market

Espressif Systems is widely popular community thanks to their low-cost ESP8266 and ESP32 WiFi & Bluetooth SoC, modules, and development kit as well as their extensive software ecosystem, and community support. If you wonder how they did outside of the maker sphere, you don’t need to worry, as the company founded in 2008 is already profitable ($23 US million profit in 2018), and even launched an IPO on the new STAR market for science and technology sectors on the Shanghai stock market that was completed on July 9 and oversubscribed around 2,880 times. A bank source informed me the IPO was only available to local Chinese people, and the IPO price was set to 62.60 CNY ($9.1). Listing started this Monday (July 22, 2019), and the stock has done extremely well with the price having reached 161.54 CNY at the time of writing. For reference, the stock code is 688018, […]

July 19, 2019July 19, 2019 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Olimex ESP32-ADF Board is Made for Smart Speakers, Internet Radios, VoIP Phones, and More

We’ve already covered several (smart) audio boards based on ESP32 WiSoC, including the Espressif’s own ESP32-LyraTD-MSC Audio Mic HDK, as well as third party boards such as TTGO TAudio or Seeed Studio ESP32-A1S all compatible with the company’s ESP-ADF (Audio Development Framework) compatible with Baidu DuerOS, Google Assistant and Amazon Alexa. Olimex ESP32-ADF adds another ESP32 audio option, and AFAIK the first one that is open source hardware, with two speakers, and a dual-microphone that enable projects such as Alexa smart speaker, internet radio receiver, or SiP VoIP phone. Olimex ESP32-ADF specifications: Wireless Module – ESP32-WROVER-B with 8MB PSRAM, 4MB Flash, WiFi 4 and Bluetooth 4.2 LE Audio Stereo microphones Stereo 2x3W speakers with amplifier Audio output jack Display – UEXT connector for optional 2.8″ LCD display USB – 1x micro USB port for power supply and programming Misc – IR receiver, 4x touch buttons, 3x tactile buttons Build-in programmer […]

July 4, 2019February 16, 2020 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

$15 TTGO T-Call Board Combines ESP32 WiFi & Bluetooth SoC with SIM800 GPRS Module

LilyGo has launched several TTGO boards usually based on Espressif ESP8266 or ESP32 over the years. Here’s another that could be useful if 2G cellular networks have not sunset in your country: TTGO T-Call. The new board combines ESP32 WiFi & Bluetooth WiSoC with SIMCom SIM800L GPRS module, and also happens to rely on a USB-C port for power and programming instead of the more common micro USB port on this type of hardware. TTGO T-Call board (BLINK_V1.3) specifications: Wireless Module – ESP32-WROVER-B based on ESP32 dual core Xtensa processor @ 240MHz with 520kB SRAM on-chip, 4MB QSPI flash, 8MB PSRAM Connectivity – WiFi 4 802.11 b/g/n (2.4 GHz) up to 150 Mbps Bluetooth 4.2 Classic + LE Cellular – 2G GSM/GPRS via SIMcom SIM800L module + Nano SIM card slot USB – 1x USB-C for power and programming (via CP2104) Expansion – 2x 21-pin headers with UART, SPI, SDIO, […]