A look inside a 10GHz microwave comms transceiver head.
10GHz Microwave link teardown – [Link]
Who never had the need to test a TV or DVD remote?
I have several times. My favorite technique was to take my mobile phone and with the camera pointed at the infrared emitter look for a flashing little purple light. The mobile phone technique is an way for testing the remote but still i decided to make a small circuit just to test the remotes.
IR remote tester – [Link]
If a production of a professional bezel is over above your possibilities, leave it to us.
Also can be added, that even in case you have a possibility to produce a suitable bezel, it can easily happen (especially at smaller batches) that it simply isn´t worth it. Design, prototyping,… all this costs something. On the other hand we have here a ready-made solution with true brass bushings and precisely designed spring clips. The result is an immediately usable bezel, while it´s only necessary to make a simple cut-out into the front panel of the device. There´s no need to drill mounting hols to exactly defined positions or so. We talk about 4D Bezel-s. Novelty in our stock offer are bezels for 7“ displays uLCD70. Bezels are available in a black and white version. In our standard offer can also be found bezels for 3,2“ and 4,3“ displays from company 4D Systems.Further details necessary for a trouble-free usage in a target device will provide you the 4D-Bezel-70 datasheet as well as other ones at particular types.
High quality bezel will provide professional look to your displays – [Link]
by Samuel_Alexander @ instructables.com:
In this project we are going to learn how to use the HC-SR04 PING))) ultrasonic sensor to measure distance. This sensor is also often used on robots to detect obstacles.
Simple Distance Measuring Device – [Link]
Texas Instruments (TI) announced the world’s first multichannel inductance-to-digital converters (LDCs). The four new devices in the LDC1614 family expand the innovative LDC portfolio, a data converter category that TI first introduced in 2013. The devices offer two or four matched channels and up to 28-bit resolution in a single integrated circuit (IC).
The combination of precision and multichannel functionality will allow engineers to design high dynamic range position and motion sensing solutions with simpler system designs and reduced cost. Unlike other technologies, LDC-enabled inductive sensing employs low-cost, high-reliability inductors as sensors, which can be located remotely from the IC. By integrating up to four channels in a single IC, the LDC1614 family allows designers to distribute sensors throughout a system, while centralizing electronics on fewer printed circuit boards (PCBs). This can benefit precision linear or rotational sensing and metal detection in a variety of end equipment including white goods, printers, cameras and automotive infotainment consoles.
TI introduces world’s first multichannel inductance-to-digital converters – [Link]
The SmartScope designed by the young Belgian company LabNation is — to our knowledge — the only oscilloscope that works with all popular operating systems: Windows 7/8, Linux, OS X, iOS (jailbroken) and Android 4.0+. So the software can run on a standard PC or laptop, but also on a tablet or smartphone. The control interface is specifically designed to operate with touch-screen or mouse and is equipped with various software decoders (such as I2C and SPI) for decoding digital signals.
The Smart Scope hardware consists of a small metal housing (for good protection) with the front two full BNC connectors for analog inputs, and at the rear a 16-pin header which has 8 digital inputs for the logic analyzer. Four digital outputs and an output for the built-in arbitrary waveform generator (AWG) are available. The sampling frequency of the analog and digital inputs is 100 Msamples/s, the maximum data rate of the AWG is 50 Msamples/s.
LabNation SmartScope: unique multi-platform USB oscilloscope – [Link]
This project is fit for use in automotive and industrial network applications. As a Controller Area Network (CAN) transceiver, this device provides differential transmit capability to the bus and differential receive capability to a CAN controller at signaling rates up to1Mbps. The device is designed for operation in especially harsh environments and includes many device protection features such as under voltage lockout, over-temperature thermal shutdown, wide common-mode range, and loss of ground protection.
The MC34901WEF serves as an interface between a Controller Area Network (CAN) protocol controller and the physical bus and may be used in both 12V and 24V systems. The digital interface level is powered from a VPWR input supply providing true I/O voltage levels for the controller. The transceiver provides differential transmit capability to the bus and differential receive capability to the CAN controller. Due to the wide common−mode voltage range of the receiver inputs, the transceiver is able to reach outstanding levels of Electromagnetic Susceptibility (EMS). Similarly, extremely low Electromagnetic Emission (EME) is achieved by the excellent matching of the output signals.
The MC33901/34901 are SMARTMOS high-speed (up to 1Mbps) CAN transceivers providing the physical interface between the CAN protocol controller of an MCU and the physical dual wires CAN bus. They meet the ISO11898-2 and ISO11898-5 standards, and have low leakage on CAN bus while unpowered. It consumes very low current in standby mode and features automatic adaptation to 3.3 or 5V MCU communication.
High-speed CAN Transceiver – [Link]
We’ve opened up our library to help you build your skills and knowledge! Get a new FREE eBook every single day!
Every day Packt Publishing is giving away books for free to help teach new tech skills
Packt Publishing will be throwing open the virtual doors of its new Free Learning Library and offering its customers a daily chance to grab a fresh free eBook from its website. The publisher is encouraging people to learn new skills and try out new technologies and so every day it will be offering a different eBook from its huge list of titles free for anyone to download.
The Free Learning Library will be open year-round but each title will only be up for 24 hours, so make sure you keep checking back to get your hands on the latest book! Packt has well over 2000 titles published and the range of topics that could potentially feature is huge. From AngularJS to Zabbix, there’s going to be something to appeal to everyone – this is a great opportunity to try out a different technology or a new technique.
All you’ll have to do is simply click on the day’s free eBook and it will instantly be added to your account. New customers are also encouraged to take advantage, with the offer being a brilliant chance to try out Packt’s great range of books and products – all that’s required is a Packt account.
Packt Free Learning Library – [Link]
Last year, a Santa Clara, CA startup named GPiO set out to solve the problem of comparing hardware components across vendors. With a veteran audio engineer as one of their founders, they decided to start with the microphone component and grow from there to other verticals. They gathered more than 60 of the top microphones from vendors like Knowles, ST, Cirrus and Invensense, then measured them objectively in their own lab.
GPiO, has launched its site ( discovergpio.com ) and is allowing access to anyone on the web, targeting both professional engineering teams and electronics hobbyists alike. This is the definitive place to find a microphone that matches your design needs based on objective performance data and their listing includes analog, digital, ECM and MEMS varieties. The microphone category will soon be followed by battery management ICs and other categories.
Visit discovergpio.com to get a free account and view the microphone data.
A better way to search for microphone components – [Link]
by Steve Taranovich @ edn.com
Any hobbyist can charge a battery quickly, but can you do it without an explosion, excessive heating or major degradation in battery cycle life?
Well many companies have managed fast charging techniques that typically use specialized algorithms. These algorithms take into account the chemistry of the battery and some sort of non-standard charging rate curve. Many device manufacturers and wireless operators are now providing a minimum two-year warranty on smart phone devices setting 800 cycles as the battery cycle life of the battery.
Charging batteries rapidly and safely – [Link]