Time4EE - news and articles about EE. Arduino, STM32, ESP8266, ESP32, Raspberry Pi, Banana Pi, CHIP computer, ESP8266, AVR, IoT, SBC, Embedded Systems


A new subfamily of L4 family microcontroller which is more powerful and also has lower power consumption of ARM Cortex-M4 which is called L4+ (STM32L4 Plus).

Original L4 which is based on Cortex-M4 achives up to 100 DMIPS and up to 80 MHz.

L4+ exceeds maximal frequency about 40 MHz - so, up to 120 MHz and in benchmark achives up to 150 DMIPS (up to 410 CoreMark).

The picture tutorial how to set and run Bolt IoT platform.

Info about Bolt IoT and kickstarter campaign was mentioned in this news. The base component is ESP8266 chip in ESP12S module. Other components are GREEN LED (cloud indication) and BLUE LED (WiFi indication, voltage regulator for 3.3V (LMS1117) and microUSB cabel which is used like power supply.
The main point of this project is SW part of Bolt IoT. Firmware of ESP8266 and cloud of the platform.

Whole tutorial is available on https://time4ee.com/articles.php?article_id=54

A new IoT platform for makers. Do you want to make IoT home? Check this platform called Bolt IoT.
Bolt IoT is not only hardware, that's a platform which also includes cloud and analyzation of data.
The hardware contains interfaces to WiFi. Bolt Cloud can be used for remotely configuration, monitoring and also controlling of your BolT IoT devices...

Digital Discovery is a crucial add-on if you have been using Analog Discovery 2, but its sampling rate was insufficient, there were not enough digital channels available, or there was too much noise to read data sent at higher speeds. See on a specific example what can be achieved with Digital Discovery.

Whole project is available on https://time4ee.com/articles.php?article_id=53

Richard Štefún sent me the article, thanks a lot.

Recently I received IOT development board called WiDo by DFRobot. It's similar to Arduino Leonardo, but with a few extra perks like SD Card slot and CC3000 WIFI module.

The article was updated - open-source 3D case for the board, radiation shield and one new example code (with OLED).

If you like arduino boards with ATmega328, SAMD21 or ESP8266, you need USB-UART converter with DTR pin. The DTR pin is needed for uploading of your code. DTR is connected to reset pin of microcontroller.
cnx-software share a news about very cheap and small USB-UART converter with DTR pin - CH340E...

We shared the smallest board called PICO: the smallest Arduino board (0.6x0.6") a few weeks ago. Now, it is not true.

The developers of Atom X1 made smaller board, but with SAMD21 microcontroller. The size of board is 14.9 x 14.9 mm. It is really small.

SinoVoip is not only single-board computers manufacturer. The SinoVoip is now manufacturer of interesting workarounds with different platforms.

SinoVoip released a few pictures of board called BPI-LoRa.
I would like to show you a few development boards with STM32 and the price is lower that $5 (without shipping).

You can't expect the ST-LINK programmer and debugger, but the price is so friendly.

See more on https://time4ee.com/articles.php?article_id=51

SinoVoip company released other single-board computer. This board is called Banana Pi M2M (M2 Magic).
The board contains:
Alwinner A33 (quad-core, @1.5GHz) ARM Cortex A7 processor
Male 400 MP2 GPU
512 MB DDR3...
The popular operating system armbian released the repair of WPA2 vulnerability called KRACK.

Follow these commands
sudo apt-get update
sudo apt-get upgrade

The description of vulnerability is on https://thehackernews.com/2017/10/wpa2-krack-wifi-hacking.html

Original tweet: https://twitter.com/armbian/status/920218719766409216
Review of Dreamer Nano board, that's Arduino board with ATmega32u4 which is comaptible with Arduino Leonardo and the pinout of board is the same like Arduino Nano.


The STMicroelectronics company released info regarding shield with gas sensor of CO (carbon monoxide).
The pack is called P-NUCLEO-IKA02A1, the pack also contains Nucleo 64 board with STM32L058R8 microcontroller.

The shield contains gas sensor for CO and footprints for another gas sensors by Figaro comapny (PCD13,5, PCD17, Mini and TGS5141).

The gas sensor of CO which is used is Figaro TGS5141

IQRF Alliance announces a worldwide contest IQRF Wireless Challenge IV.
“Test your skills, create a new application using the IQRF wireless technology and compete for valuable prizes”; this is a challenge for all technicians, programmers, developers, and students from all over the world.

The contest begins on October 1, 2017 and closes on March 25, 2018. The final competition of the best projects will be held in Prague in April 2018 at IQRF Summit 2018. The major rewards include modern development tools from the world of wireless technologies and IoT. To best technicians may be offered a job.

Armbian showed a pictures of Orange Pi 3 Plus. Now, BananaPi released a pictures and info about BananaPi-W2. It is really powerful single-board computer. So, we can wait for two interesting a powerful single-board computers.
As I mentioned in title, it contains a lot of different interfaces.

The heart of board is Realtek RTD1296 processor, Quad-core ARM Cortex-A53 with Mali T820 MP3 GPU. More info about this processor, which contains Gbps ethernet, 2x SATA, 2x USB 3.0 you find here . The amount of RAM is 2GB and the type is DDR4.

Arduino.cc released two new boards called MKR. A few boards with MKR name are available in store. MKR FOX 1200 with IoT Sigfox module and basic board called MKR 1000 with WiFi WINC1500 module.

Armbian tweeted a picture of Orange Pi 3 Plus.
The board is not oficially at store. That's sample board for developers.
What we see on board. The Orange Pi 3 Plus contains Allwinner H6 processor. The Allwinner H6 is the new generation of processor, it supports 4K video, USB3.0 and PCIe.
Other articles about single-board computer called Banana Pi M2 Berry by SinoVoip. In this article, we check SATA connection and we test the speed of communication.

Article is on https://time4ee.com/articles.php?article_id=50

WEMOS released a new development board with ESP32 called LoLin32 with price $4.9 (+ shipping, $2.59 in my case).

WEMOS has released LoLin32 a few weeks ago. Here is link to the news..

The Lite version of board is smaller, it also contains battery input, micro USB connector and reset button.

The most important news is version of ESP32