The LT8641 is a monolithic, constant frequency, current mode synchronous (external schottky diode is not necessary) step-down switching regulator. Its 3V to 65V input voltage range makes it ideal for 12V or 24V automotive and industrial applications. It delivers up to 3.5A of continuous output current and peak loads of 5A. Output voltages can be set in 0.81 to 64V range. [via]
LT8641 – 65V, 3.5A Synchronous Step-Down Silent Switcher – [Link]
A teardown of a TDA7375 audio amplifier IC from Electronupdate:
The TDA7375 audio power amplifier.
Another example of a long-lived integrated circuit. 1st introduced in 1998… looks like it’s still being made.
Teardown of a TDA7375 audio amplifier IC – [Link]
Tom from Magic Smoke writes:
This is my first time designing a PCB for MSP430. I really like the NRF24L01+ booster pack but I would like something smaller to use for remote temperature sensors. With that in mind I’ve designed a 24.5 x 50 mm PCB (2 on a 5×5 cm prototype) featuring MSP430G2553 and an adapter for a 8-pin NRF24L01+ module using essentially the same pinout, with the intention of using the Spirilis library. There’s a jack socket to connect a 1-wire sensor (e.g. DS18B20), a 4-pin header to connect a temperature/humidity sensor (SHT22 or similar), a programming header that gives serial access, and 3 other general purpose I/O pins.
Magic Mote MSP430G2553 wireless sensor node with NRF24L01+ module – [Link]
AUTomotive Open System Architecture (AUTOSAR) is a worldwide automotive consortium trying to create and establish an open and standardized software architecture for automotive electronic control units (ECUs). However, as is always the case with industry consortiums and standards, they are not endorsed by all interested parties, and, to complicate matters even more, not all applications require AUTOSAR.
With this in mind NXP has launched its S32K1 family of scalable ARM Cortex-M devices together with a suite of automotive grade tools and software. Initially the family will span 128KB-2MB of flash memory. All family members include ISO CAN FD, CSEc hardware security, ASIL-B support and ultra-low-power performance. Check out the demo video.
In applications where the use of AUTOSAR is not mandated, the S32K platform provides a path for self-development with a free-of-charge, pre-qualified, automotive-grade software development kit (SDK) that enables rapid prototyping with simple drag and drop functionality. For AUTOSAR applications, NXP’s MCAL and OS support has been expanded with new Complex Device Drivers (CDD) and a new S32K starter kit is available free of charge for evaluation.
You can learn more about NXP’s S32K1 product line and the suite of automotive-grade tools and software that support ARM Cortex-based MCUs at the official website.
Source: Elektor
At this year’s Sensor+Test 2017 in Nuremberg (May 30 – June 1), Sensirion AG, the expert in environmental and flow sensor solutions, introduces the SGP – a siloxane resistant metal-oxide gas sensor with unprecedented long-term stability.
The SGP gas sensor is based on Sensirion’s multi-pixel platform, which integrates four gas sensing elements into a very small 2.45 x 2.45 x 0.9 mm3 DFN package featuring a fully calibrated air quality output signal. The unique combination of long-term stability and multi-pixel technology opens up new possibilities for environmental monitoring in smart home, appliances and Internet of Things applications. Thanks to its unique performance, the SGP allows the integration of metal-oxide gas sensors into mobile devices.
Sensirion solves long-standing stability problem in metal-oxide gas sensors – [Link]
Use the PN532 NFC available on the anduinoWiFi shield to create an RFID keycard building access system. by Brian Carbonette @ hackster.io
Arduino RFID Keycard Access – [Link]
by Graham Prophet @ eedesignnewseurope.com:
Maxim Integrated has posted details of the MAX17290/MAX17292 high-efficiency, synchronous step-up DC-DC controllers, that operate over a 4.5V to 36V input voltage range with 42V input transient protection and feature reduced EMI. The input operating range can be extended to as low as 2.5V in bootstrapped mode.
2.5V to 36V, 2.5MHz, PWM Boost Controller with 4μA Shutdown Current – [Link]
@ instructables.com writes:
Hello guyz, Welcome to Being Engineers. Hope you all are doing good. In this tutorial we will learn how to make your own Arduino Uno. We will gather the components, test the circuit in breadboard, then we will make the board itself. When it is done we will know how to program the Arduino IC AKA Atmega328p on board.
How to Make Your Own ARDUINO UNO Board – [Link]
@ instructables.com writes:
In this project I will show you how to create an Arduino based soldering station for a standard JBC soldering iron. During the build I will talk about thermocouples, AC power control and zero point detection. Let’s get started!
DIY Arduino Soldering Station – [Link]
by Pesky Products @ tindie.com:
This is a small (0.5 x 0.5 inch) breakout board for Texas Instrument’s BQ25504 Ultra Low Power Boost Converter with Battery Management for Energy Harvesting Applications.
BQ25504 Solar Cell LiPo Charger – [Link]
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