Semtech TS30041 – Buck regulators accept up to 40-V input

ts3004x-bd

A wide input range of 4.5 V to 40 V enables the TS3004x series of DC/DC synchronous buck regulators from Semtech to work in a wide range of applications, including industrial, telecommunication, and consumer. The current-mode TS30041 and TS30042 furnish 1 mA and 2 mA of continuous output current, respectively, and include integrated power switches and robust fault protection in a small 3×3-mm, 16-lead QFN package. by @ edn.com

Semtech TS3004x – Buck regulators accept up to 40-V input – [Link]

Chronos 1.4, Everyone’s High-Speed Camera

The Canadian Kron Technologies, led by its founder David Kronstein, has just launched a brand-new camera: Chronos.
Chronos 1.4 is a purpose-designed, professional high-speed camera. It enables you to capture stunning high-speed video at up to 1280×1024 resolution thanks to its 1.4 gigapixel-per-second throughput. Its frame rate ranges from 1,057fps at full resolution, up to 21,600fps at minimum resolution.

original

David is an electronics engineer specializing in digital systems, FPGAs, and image processing. His passion for high-speed imaging began in 2006 since he was unable to afford a high-speed camera at the time. Starting from the belief that high-speed imaging should be for everyone, David wanted to disrupt the high-speed video industry with Chronos. Chronos is about 1/10th the price of similar professional camera ($25000), plus it has more features and  better usability. Renting a traditional camera that has similar features for 2 weeks may cost you more than getting Chronos!

David started a campaign on Kickstarter for his amazing camera, check the campaign video

Chronos Features

  • 1.4Gpx/s, 1.3 megapixel image sensor captures 1280×1024 @ 1057 fps, and up to 21600 fps at lower resolution.
  • Available in color and monochrome.
  • 8GB or 16GB memory options for 4 or 8 second record time respectively.
  • High sensitivity of ISO 320-5 120 (Color), 740-11 840 (Monochrome) enables shooting with modest lighting.
  • Completely standalone, untethered operation with 1.75hr internal battery.
  • Runs indefinitely on AC adapter. “Run-n-Gun” record mode allows you to forget about saving.
  • Take bursts of video by holding the shutter button, and the video is automatically saved to card.
  • Continuous record mode records normal rate video (60fps) continuously to storage devices while simultaneously recording bursts of high-speed video.
  • Focus peaking highlights sharp edges for quick and perfect focus.

Detailed specification can be found at the datasheet.

Here’s some highlights and demo videos captured using Chronos. More demos here.

Good news that Chronos full source code and development environment for the camera’s user application will be released soon. Everyone now can modify the operation of the camera, add features, and contribute to improve the software!

Check the campaign page for detailed description and more updates, The campaign still has 22 days to go and it already has achieved 5 times its goal in record time! You can pre-order your Chronos now for $2700 and also get the best accessories you need.

Withings Body Cardio Teardown

02-pcbfull-7db56b9998449529b9c087ec4c30bd3859ec0976cec14741f77548da0b7d7876

Nick tipped us with his latest teardown of an advanced weighing scale. He writes:

The Withings Body Cardio is the latest in the brand’s range of smart health-centered devices, and the second Withings product we’ve tackled in this series!

It’s a smart scale with a pretty impressive set of metrics. It detects weight; fat, muscle and bone mass; hydration level; heart rate; PWV (Pulse Wave Velocity); and it shows your daily step count (if you use the app) and today’s weather.

Withings Body Cardio Teardown – [Link]

MAX11311 – The Powerful Configurable Mixed Signal I/O

The MAX11311 is industry’s first configurable high-voltage mixed-signal I/O that allows user-defined ADC, DAC, or GPIO functionality.

Programming MAX11311 is very easy. A nice GUI tool helps to generate the right register values. If you want to make a universal signal processing board with a good number of I/O, it often gets very difficult to select a correct microcontroller. Finally, when you select one, it either has less I/O than you need or has fair enough number of I/O but burns your pocket. But if you know about MAX11311, then you’ve got a perfect solution.

Description:

The MAX11311 integrates a PIXI™, a 12-bit analog-to-digital converter (ADC), and a 12-bit digital-to-analog converter (DAC) in a single integrated circuit. This device offers 12 high voltage, bipolar ports. Each of the ports is configurable as an ADC analog input, a DAC analog output, a general-purpose input output (GPIO), or an analog switch terminal. One internal and two external temperature sensors track junction and environmental temperature. This feature prevents thermal runaway. Adjacent pairs of ports are configurable as a logic-level translator for open-drain devices or an analog switch.

MAX11311 MIcrocontroller Block Diagram
MAX11311 Mixed Signal I/O Block Diagram

Features:

  • Up to 12 12-Bit ADC Inputs
    • Single-Ended, Differential, or Pseudo-Differential Range Options: 0 to 2.5V, ±5V, 0 to +10V, -10V to 0V
    • Programmable sample averaging per ADC port
    • Unique voltage reference for each ADC PIXI port
  • Up to 12 12-Bit DAC Outputs
    • Range options: ±5V, 0 to +10V, -10V to 0V
    • 25mA current drive capability with over-current protection
  • Up to 12 General-Purpose Digital I/Os (GPIO)
    • 0 to +5V GPI input range
    • 0 to +2.5V GPI programmable threshold range
    • 0 to +10V GPO programmable output range
    • Logic-Level Shifting Between any two pins
  • 60Ω analog switch between adjacent PIXI Ports
  • Internal/External temperature sensors with ±1°C Accuracy

Applications:

You can use this chip as an expansion module to MCUs in various applications. Let’s see the list:

  • Base station RF power device bias controllers
  • Control for optical components
  • Industrial control and automation
  • Power supply monitoring
  • System supervision and control
  • Universal signal processing

Conclusion:

The MAX11311 adapts perfectly to specific application requirements and allows for easy reconfiguration as the system needs further change. It also reduces BOM (Bill of Materials) cost with fewer external components in a small footprint.

To know more about this awesome chip, refer to the datasheet.

Conductive Plastic Holes For Wearables

The National Institute of Standards and Technology (NIST) research team has just debuted a new way of building flexible nontoxic golden film out of golden wires. They predict it will be a major step in wearable sensor research since it is comfortable and convenient for health usage, especially that it won’t be harmful to the human body causing any extra chemicals to do its function.

Wearable electronics - Source: NIST
Wearable electronics – Source: NIST

With one of his attempt in separating microfluidics, Reyes Hernandez NIST biomedical engineer found out that flexible plastic membranes can help conducting electricity. While twisting golden films on this membrane, that is similar to warp, the film kept connected even though all the twists and bends.

“Apparently the pores keep the gold from cracking as dramatically as usual,” Hernandez said. “The cracks are so tiny that the gold still conducts well after bending.”

forwearablee

“This thin membrane could fit into very small places,” he said, “and its flexibility and high conductivity make it a very special material, almost one of a kind.”

Hopefully, this discovery will lead Hernandez and his team to a new level of integrating small and convenient healthcare sensors in our body. The fact that the gold is non toxic and the superconductivity of the porous plastic membrane makes it a great deal to combine them in future researches and applications.

More information about the golden-membrane conductivity you can check NIST official page.

For detailed description and technical information, check this paper by NIST research group: Flexible Thin-Film Electrodes on Porous Polyester Membranes for Wearable Sensors.

Choose The Best Display For Your Arduino Project

Have you ever been unsure which display you should be using in your next project? This tutorial from educ8s.tv will come in handy for choosing the best display for your each and every Arduino project!

There are lots of choices, so let’s talk about each one of them. Basically, you have three types of displays: LCD displays, OLED displays, and E-paper displays.

LCD displays: LCD (liquid crystal display) is the technology used for displays in notebook and other smaller computers. Like light-emitting diode (LED) and gas-plasma technologies, LCDs allow displays to be much thinner than cathode ray tube (CRT) technology. LCD display is a flat-panel display or other electronic visual display that uses the light-modulating properties of liquid crystals.

One of the famous LCD displays is Nokia 5110 LCD display, a basic graphic LCD screen for lots of applications. It was originally intended for as a cell phone screen.

6851997-danbo-wallpaper

Its controller is a low power CMOS LCD controller which makes it a good choice for low-consumption projects. It uses only 0.4mA when it is on and less than 0.06mA when in sleep mode. You have to use this library and you don’t need more than 8 wires to start using this display. This tutorial video will show you with details how to use Nokia 5110 LCD with Arduino:

A second choice is the OLED displays. OLED is an organic light emitting diode in which the emissive electroluminescent layer is a film of organic compound that emits light in response to an electric current. An OLED display works without a backlight; it can display deep black levels and can be thinner and lighter than a liquid crystal display. Thus, it is provides better contrast than the LCD choice but it becomes a bit more expensive.

color_oled

One of the newest OLED displays is the color SSD1331 display that can display 65.000 colors. Just download its library from Adafruit and start using it. A video explaining how to use it is available here.

The last type is E-paper displays, that mimic the appearance of ordinary ink on paper.

lg-paper

Unlike LCD or OLED displays, these displays reflect light instead of emitting it. Such displays are great for low power projects since they have the ability to keep the text or the image you had set before for a really long time and without electricity. One of these displays disadvantages that they are absolutely costly compared with other choices, some displays can reach $60!

Color TFT Display ST7735, White OLED Display SSD1306 and 3.5″ Color TFT Display are all mentioned in the tutorial. You should check it out for more details, information, and some hardware offers.

The tutorial concludes with this interactive table based on different criteria, this is ordered progressively by price. You can compare between displays here.

display

10% off all TI tools + free standard shipping on TI Store

8028176665853453426

Here is a TI offer that you may be interested in. You get 10% off all TI tools + free standard shipping when you buy from the TI store through OEMSecrets comparison tool. Use code CYBERWEEK at checkout on the Ti store.

10% off all TI tools + free standard shipping on TI Store – [Link]

8 PIN PIC Development Board – PIC12F683

8-pin-pic-development-board-c085c-500x500

8 PIN SMD PIC development board is a full-featured development board and platform for 8-bit PIC® microcontrollers. This project is a versatile development solution, featuring several options for external sensors, off-board communication and human interface. Additionally, it offers ample room for expansion, making it an excellent solution for developers and engineers looking for a PIC development board. The 8 Pin SO8-SMD PIC Development / Evaluations Board demonstrates the capabilities of Microchip’s 8-bit microcontrollers, specifically, It can be used as a standalone demonstration board with a programmed part. With this board you can develop and prototype with all Microchip’s 8 PIN PIC microcontrollers which doesn’t required crystals (External Oscillator). On board connector for ICSP allows an easy programming. The board has configurable pull ups on all pins can be soldered or abandon as per requirement, All pins has solder Jumpers for pull down.  Onboard 5V regulator, two tact switch, one output connector to interface with 12V Relay board or solid state AC or DC Relay. Board has small prototype area. We have considered PIC12F683 IC for this Board.

8 PIN PIC Development Board – PIC12F683 – [Link]

Temperature alarm for boiling milk

image2

Domen Ipavec shares his temperature alarm for boiling milk. Temperature alarm uses an Atmel attiny841 microcontroller, DS18B20 high temperature waterproof temperature sensor from adafruit, 2×16 HD44780 LCD and a buzzer to do its job.

Anyone who has ever boiled milk on the stove knows, that it has a nasty habit of overflowing. That is why I created the temperature alarm for boiling milk to be used my mother. It continuously measures the temperature of the milk and sounds an alarm when the temperature is over the preset alarm value.

Temperature alarm for boiling milk – [Link]

FiPy, The Future IoT Module

The hardware startup Pycom have been working hard to create a fast-develop-and-connect hardware portfolio, a portal and gathered enough developer manpower to unleash the IoT growth potential. Pycom has just launched its newest product: FiPy!

301c48d603db267c9025d14e206c1b09_original

FiPy is the new IoT module that connects your device to other networks. According to what the company describes, it is the most comprehensive solution, unifying LTE with other proprietary or unlicensed LPWA technologies into a single, five-network IoT connectivity solution.

2c0702a7a39b0313f7b08f94c202b7e2_original

“In addition to WiFi, BLE, LoRa and Sigfox, we’ve added the latest cellular technology for IoT: LTE-M. But, we didn’t just go for one frequency type either. Nope, we partnered with the leaders in their field, Sequans, and are now proud to confirm that our module will have both CAT NB1 and CAT M1.”

The board specifications

  • ESP32-based – Espressif ESP32 SoC
  • Dual processor and WiFi+Bluetooth radio system on chip
  • Supports 5 networks: WiFi, BLE, cellular LTE-CATM1/M2(NBIoT), LoRa, and Sigfox
  • RTC running @ 32KHz
  • Size: 55 x 20 x 3.5 mm
  • Micropython enabled
  • Pymakr and Pymate compatible
  • All your apps from WiPy, LoPy and SiPy will work on FiPy too
  • Open source firmware

Pycom is redefining IoT with this brand new module! FiPy gives access to all the world’s LPWAN networks on one tiny board. It is now live on Kickstarter, check the campaign video:

You can pre-order your FiPy now for $39, the campaign still has 23 days to go and it has already achieved double of its goal. More information about FiPy plus its sensors and accessories check the crowdfunding campaign and the official website.