AOZ128x EZBuck™ Simple Buck (Step-Down) Regulators

Alpha & Omega’s high efficiency and simple to use regulators are designed for automotive, telecom, and networking equipment

Alpha & Omega Semiconductor’s AOZ128x series are high efficiency, simple, step-down regulators ranging from 0.6 A to 4 A of continuous output current. These EZBuck regulators work from a 3 V to 36 V input range depending on the device. They also offer an adjustable output voltage down to 0.8 V. The fixed switching frequency of 1 MHz PWM operation in the AOZ1282 and 1.5 MHz PWM operation in the AOZ1281 allow for a reduced inductor size, while the AOZ1284 offers a switching frequency of 200 kHz to 2 MHz with an external resistor. The AOZ1284 also offers an integrated N-channel high-side power MOSFET.

These regulators feature internal soft start as well as an adjustable soft start (AOZ1284). The devices support fault protection including thermal shutdown, short-circuit protection, and cycle-by-cycle current limit. The EZBuck series are offered in SOT23-6L, DFN 2×2, and EPAD SO-8 packages making them ideal for automotive, telecom, and networking equipment.

Features

  • 3.0 V to 36 V operating input voltage range
  • 0.6 A to 4.0 A continuous output current
  • Up to 95% efficiency
  • Adjustable output voltage range from 0.8 V to 30 V
  • Cycle-by-cycle current limit
  • Short-circuit protection
  • Overvoltage protection
  • Overtemperature protection
  • Adjustable switching frequency from 200 kHz to 2 MHz (AOZ1284)
  • Internal soft start
  • Available in SOT23-6L, DFN 2×2, and EPAD SO-8 packages

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Tiny Solar Energy Module (TSEM)

A 1 square inch PCB module with 2 tiny solar cells, a highly efficient Li-Ion charger and with 3.3V and 1.8V output by Jasper Sikken:

This is a 1×1 inch PCB module with two tiny solar cells, a highly efficient Li-Ion battery charger and with two regulated outputs (3.3V and 1.8V). It is unique because it is an easy to manufacture tiny module that other hackers can drop in their PCB design or bread board. Bessides it harvests enough power from indoor light to power a simple BLE or LoRa sensor.

The challenge is to design a TINY module that easily interfaces to other projects. I selected tiny surface mount solderable solar cells, a highly integrated energy harvesting IC, and left out the battery. The board has castellated vias so it can be surface mount soldered onto a mother PCB as well as soldered onto 0.1″ headers to be used in a bread board.

Tiny Solar Energy Module (TSEM) – [Link]

Communication Between Two Arduinos Using NRF24L01

NRF24L01

While building Arduino or any other microcontroller platform project over time the need will arise to establish communication between two of the Arduino boards or microcontrollers for data exchange and/or control. This communication could be achieved using either wired or wireless process. For wireless communication between devices, quite a number of options exist including WiFi, GSM/GPRS, Bluetooth, RF and more recent technologies like LoRaWAN among others. All of these communication protocols have their pros and cons and the situation is in which they are the best fit. For mid-range communication between two microcontrollers, for example, one of the most suitable communication protocol is RF (radio frequency) as it has a good cost to performance ratio and a very good communication range can be attained using certain modules.

Today, we will look at the radio frequency based communication between microcontrollers using one of the most popular RF communication modules; the NRF24L01 communication module.

The NRF24L01 module is a low-cost (less than$3) ultra-low power, bi-directional transceiver module. It is designed to operate within the 2.4GHz ISM band which means it can be used for projects with industrial, scientific and medical applications.  The module can achieve data rates as high as 2Mbits! and uses a high-speed SPI interface in order to communicate with the Arduino and other kind of microcontroller and development boards.

Communication Between Two Arduinos Using NRF24L01 – [Link]

Full Guide on How to Play PC Games on Android

Learn the top games ported to Android and how to play the non-ported ones without streaming and extra hardware.

Mobile is our life. I personally have started to find myself using my smartphone both for business and for entertainment much more often then a PC, even if it is within my usual reach. What if I could also play my favorite PC games on Android, right here on my couch? So, that I don’t need to turn my computer or gaming console on? Would my life become happier? Definitely, yes. Especially in this world, where we can turn the things apart with a swipe of a single finger.

Well, it’s really hard to find PC games for Android, as quite a few game developers provide versions of their games for the Android platform. Not mentioning the industry of mobile gaming itself, which is currently so overwhelmed with the enormous amount of apps that the PC or console game developers have no room for competition left.

And just imagine how great it would be to enjoy our favorite strategies like Heroes 3 or Disciples 2 within the new environment and extraordinary experience with a mobile touchscreen.

Full Guide on How to Play PC Games on Android – [Link]

MicroSemi’s Precision Colour Sensor AS73211

Precision colour sensing made easy

Austrian MicroSemi recently divested itself of its transceiver portfolio, leaving standards such as AS-I stranded. Sensors were selected as the new main field of business, leading to the introduction of a few extremely interesting products such as the JENCOLOR colour sensor ICs.

In principle, the sensor is laid out according to the schemes shown in the two figures accompanying the screen. The main priority is that the part contains but three photo-diodes, all three of which are conveniently located behind a filter to eliminate unwanted spectral components.

The three diodes are located in seperate areas of the main die…

…AMS provides a relatively complex set of signal conditioning circuits

To clarify a few aspects: first of all, the AS73211 is strictly an one-pixel color detector – it has nothing to do with the traditional linear or two-dimensional CCD chips which are well-known from digital cameras. Secondarily, the chip’s intended usage is processes – think about quality control, sorting of goods and similar tasks where accurate color sampling is required.

Finally, the AS73211 is intended to reach extreme high accuracies – its internal DACs can work at 24bit if required.

When compared to a homebrew solution, benefits pop up. ADC linearity and temperature issues are handled by AMS – the chip contains various bits of logic which ensure that issues affecting resolution adversely are handled effectively.

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Raspberry Pi Model Comparison Table

There are quite a few Raspberry Pi boards on the market today and sometimes it’s not that clear on the differences between them. I’ve made this table for a more visual representation of what’s on-board. Hopefully it will help you to choose the right board for you! [via]

You will need to login to access the PDF file.

Raspberry Pi Model Comparison Table – [Link]

Reflow Master – Graphical reflow controller

An easy to use graphical reflow controller for your toaster oven. Source files available on github. by Unexpected Maker:

Reflow Master really started out as a microcontroller-based graphing experiment… I wanted to visualise the temperature in my toaster oven when I manually reflowed my PCBs.

I had a K-Type probe in my oven connected to my digital multimeter, and though I could see the temperature, unless I also used a stopwatch, I had no real idea of how long I was reflowing for and at what temperature… it was VERY scientific.

So I thought about using a MAX31855 module connected to a micro-controller to read the temp from my probe and simply drawing this as a graph of temperature over time on a small TFT screen also connected to the micro-controller.

Reflow Master – Graphical reflow controller – [Link]

AAEON’s Latest 4” Motherboard Is Built for Speed

(Taipei, Taiwan – August 14, 2018) – AAEON, an industry-leading developer of embedded computers, proudly launches the EPIC-KBS9, the world’s only 4” SBC built to accommodate 65W Intel® Core™ i socket-type processors. Fitted with these incredibly powerful CPUs, the board is ideal for data encryption, video streaming, and advanced machine vision applications.

The EPIC-KBS9’s high-powered specifications don’t end with its CPU capabilities – everything on this board has been designed for accelerated computing. Two SODIMM sockets enable a 32G dual-channel memory platform, and thanks to its PCIe [x4] slot, the board also supports NVMe SSDs for significantly faster boot times and response rates.

As a solution for LAN applications, the EPIC-KBS9 is fitted with four GbE LAN ports. It also features two USB3.0 ports, two USB2.0 internal connectors, an HDMI port, and two COM connectors, so it can easily handle multiple peripherals. The motherboard can be expanded through its PCIe [x4] slot and an additional full mSATA/Mini-PCIe slot.

The EPIC-KBS9 completes AAEON’s range of EPIC SBCs. Featuring Intel Core i socket-type processors, the series offers a level of computing performance usually only seen with Mini-ITX products,” said Alicia Wang, AAEON embedded computing division product manager. “The EPIC-KBS9 is the most powerful of these boards, and it produces computing speeds that simply can’t be matched by any other 4” SBC.

for more information visit: www.aaeon.com

Evervision expands all-in-one HDMI TFT displays portfolio

Evervision Electronics Europe has expanded its range of HDMI TFT displays to address growing demand, adding five new display sizes to its portfolio. [via]

The Evervision HDMI TFT displays modules are available in 5″, 7″, 8″, 9″and 10.1″ TFT LCD displays in different technologies (TN, Ultra Wide Viewing, IPS display), resolutions and brightness and having all the option of Capacitive Touch or No Touch Panel. Display resolutions come at 800×480 pixels for the 5″ and 7″ units (TN Type), 1024×600 pixels for the IPS type 7″ TFT displays, 800×480 pixels for the 8″ and 9″ TN Type units and 1280×800 pixels for the 10.1″ TFT displays (IPS). The HDMI Interface Controller Board includes Mini HDMI and Mini USB connectors, with an integrated backlight driver and dimming via PWM. All components used are carefully selected, available in the long term and meet the highest quality requirements. The HDMI display solutions are available with and without capacitive touch panel. Tool costs are not required. The operating temperature range is from – 20°C to + 70°C.

Evervision Electronics – www.evervisionlcd.com

PopCom – Identify your COM ports

avishorp has written a small program that pops up a message whenever a serial port over USB device is plugged in, that is available on GitHub (code).

PopCom is a COM port plug-in/plug-out notifier. Whenever a USB device that emulates a COM port is connected to the computer, a pop-up will be displayed, describing the device that has been plugged in and the COM number assigned to it. This pop-up helps determining the COM number assigned to each device, a number that is required for communicating with it.

PopCom – Identify your COM ports – [Link]