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

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Aimtec’s AC/DC LED driver series AMEPR30-AZ, AMEPR60-AZ, AMER90-AZ, AMER120-AZ, and AMER150-AZ all can be utilized in either a Constant Current or a Constant Voltage mode.

Whole article is available on https://time4ee.com/articles.php?article_id=57

The Arduino board called Mega2560 uses the ATmega2560 microcontroller. The Arduino board costs 35 EURO. The microcontroller is very interesting, it contains a lot of analog(16) inputs and digital inputs/outputs (54, 15 for PWM) and the microcontroller is working on 5V voltage.

Epalsite electronics designed the small board exactly with this microcontroller. You can buy it e.g. on ebay.com for 12.99 USD. The Meduino Mega2560 Pro Mini board.

Maybe you saw press news that Vodafone uses IoT network which is based on NB-IoT .
So, if you are looking for useful module for the connection to this NB-IoT network maybe you found Sinovoip (BananaPi) NB-IoT board.

RAK wireless company released Arduino Uno compatible shield which contains BG96 module.

DFRobot released a kickstarter campaign before 2 years. DFRobot wanted money for development and sell for this board - LattePanda - Windows 10, Arduino microcontroller, Quad core, 2/4GB RAM, 32/64GB eMMC, BlueTooth 4.0, WiFi, USB3.0

And now, here is another single-board computer called LattePanda Alpha and Delta and you will be really supprised! ...
If you want to buy ESP32 development board called ESP32-PICO-KIT, ElectroDragon offers this for $10.
Info about ESP32-PICO-D4
Here’s a beginner’s guide showcasing Pmod compatibility with the popular Arduino Uno platform. We will use a sample project – Pmod NAV – described on the Digilent Projects website. And then… Try to make your own project!

Article is available on https://time4ee.com/articles.php?article_id=56
Cloud services are very popular and the offer is big.
Not all your data you want to save on thirt-party servers. So, then you can use own cloud service on your server.
This tutorial will be working on Banana Pi M2 Berry (SBC with SATA interface), but the tutorial is the same for another SBC like Raspberry Pi, Orange Pi or Nano Pi.

Tutorial here: https://time4ee.com/articles.php?article_id=55


Espressif shared the news about a the new version of ESP32 called ESP32 PICO D4 a few weeks ago. The ESP32 PICO D4 contains 4MB FLASH memory .

Now, here is developent board which contains ESP32 PICO D4 [datasheet]. You can buy it on ...

Zeroshell is small linux distribution which is used for servers.
The Zeroshell OS can be used like Live CD (for laptops and desktops) or like the running OS from microSD cards - especially for single-board computers.
The Zeroshell supports Raspberry Pi Zero, 2, 3 and Orange Pi Zero, R1, Plus, Plus2 and PC.
The settings of whole OS is available from your web browser...

When: April 24 - 25, 2018
Where: Clarion Congress Hotel Prague
WWW: www.iqrf.org/summit2018

After the successful IQRF Summit 2017, the next edition will be held in April 2018. Come and see the progress in the Internet of Things field, projects IQRF Alliance members are currently working on, successfully realized pilot projects and opportunities for cooperation. Again, you can look forward to a lot of real solutions and products.

The czech website DCCMM shared a post regarding very small PCB with switching voltage regulator. The output voltage is 5V and output current up to 1A.
The voltage ripple of regulator should be < 30mV and efficiency is up to 90%.

FriendlyARM released a new member to NanoPC family. NanoPC-T3.
So much power for $75 (without shipping).

SoC: Samsung S5P6818 Octa-Core Cortex-A53, 400M Hz - 1.4G Hz
PMU Power Management: Implemented by a Cortex-M0 MCU, support software power-off, sleep and wakeup functions
System Memory: 2GB 32bit DDR3 RAM
SD Storage: 1 x microSD Card Socket
Ethernet: Gbit Ethernet(RTL8211E)

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.