Tänään on 19.02.2019 23:44 ja nimipäiviään viettävät: Eija ja Fritjof. Käytämme EVÄSTEITÄ | MOBIILIVERSIO M.BLOGIVIRTA.FI

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Code and Life -

Test driving the IKALOGIC ScanaQuad SQ200 logic analyzer with USB and serial protocol analysis. Using my custom ATmega32u4 based USB MIDI adapter as a test dummy.


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Code and Life -

There are few tools that are essential for an electronics hobbyist. When I started, I had a soldering iron, a multimeter and some components, and that was about it. That got me quite far because you can do simple debugging even with a multimeter, but once you start to do any communications, you will either … Continue reading Picoscope 2208B MSO Review


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Timo Kuhmonen - Astroblogi -

This battery project, requires some additional electronics. Main purpose is to keep output voltage stable as the input voltage changes (depending on the amount of 4S LiPo cell discharge level). There is many options and manufactures to look at... First I will check what local stores (like YE, Partco and Elfa) are selling. I will make later decisions, what voltage converter to use. Because of efficiency requirements, converter module based on the linear technology, is not an option here...


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Tohtori Megistos -

Hyvää iltaa, aprillipilaiset lukijat. Tohtori vietti jälleen aikaa sakkikerhossa ja kiusasi matemaatikkoystäväänsä lukemalla pienen otteen John Dee -elämäkerrasta: "Among scholars and mechanicians in England, Dee was known primarily as a mathematician (which, in the opinion of Dee and his colleagues, was synonymous with philosopher). Mathematics was still suspected of being one of the black arts, however, and to ordinary people it was a frightfully dangerous study. It had barely begun...


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Kiinaloki -

EMSNow kertoo: IDC ennustaa Kiinan markkinoiden kasvavan 28 miljardiin US dollariin 2011 mennessä. Pointteja analyysista: technologies continue to lag behind must keep in mind the dynamic characteristics of the Chinese market and the strong influence of the local government top 10 Chinese IDMs focus on the foundry market, although a few have their own products largest capacity distribution of China fabs was represented by 8-inch wafer lines, followed by the 6-inch and 12-inch capacity...


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Haado Blog -

Sorry for the negligence. I'm back. Back in Sapporo. Back from what or where? Well, a trip. Or rather, a journey. Yeah. Journey sounds more grand. Let's stick with that. T his journey began on the 28th of February, 2007, and ended exactly three wee ks later, 21st of March. Not even arguably, undeniably one of the best journeys of my life. This enormous excursion included strange and won derful coincidences, new acquaintances, old friends, good luck, bad luck, beautiful scenery and of course...


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Code and Life -

Look what the mailman brought: It’s a shiny (or maybe matte?) BeagleBone Black, freshly arrived (actually it’s been over a month, but time sure flies…) from Newark element14! I’ve been doing Raspberry Pi related hacking for a while, but especially when the Pi was still fresh and new, I did from time to time consider … Continue reading BeagleBone Black GPIO Benchmark


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Foxy and Me -

Turn off lights and all electronics (like computers, televisions, stereos, and video-games) when you leave a room.  Use the microwave instead of the oven for cooking your meals.  Open your blinds or curtains on sunny winter days to let the sun shine into your home.  Save hot water by taking short showers instead of baths  Turn off the water while you brush your teeth.  Don’t leave the refrigerator door open. Every time you open the door, up to one-third of the cold air can escape. Help...


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Code and Life -

This project was born as a sidetrack of another one (I’m planning on building a $10 DIY Bluetooth page turning pedal for my piano and iPad sheet music app, similar to PageFlip Butterfly). I was looking if AliExpress would have bluetooth pedals, which they don’t — it seems Chinese vendors are REALLY good at copying … Continue reading $8 Bluetooth automation button for Raspberry Pi Zero W


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Code and Life -

I’ve been tinkering with IR and the TSOP38238 IR receiver modules I got from Adafruit and Sparkfun. That’s right, plural, as I burned the first one — be REALLY sure not to mix ground and VCC with this one! I ordered 10 more from AliExpress just to make sure I have spares in case I … Continue reading IR signal recorder with Arduino Uno


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anderswallin.net -

An evolution of my PICDIV-board from 2016. Takes 10MHz input and produces 1PPS (one pulse per second). This one has a TADD-2-mini inspired sine-to-square converter on the input (far left), a PIC12F675 with Tom van Baak's PICDIV-code (right), an ICSP-header for programming, and output-buffers inspired by the pulse distribution amplifier. A 3-position DIP-switch (middle left) […]


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anderswallin.net -

Here's a new revision of the RF-mux board, with a 10-pin ribbon cable for +5V, +3.3V, and SPI-signals from an Arduino MKR Zero. Arduino stack: Ethernet shield, MKR Zero, and MKR proto shield


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anderswallin.net -

An old drawing from the archives, which we hereby archive here. Drawn with Schaeffer front panel designer. Requires a further PCB-bracket that attaches to the 230x100 M3 holes and has screws that reach the back of the 7" LCD module.


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anderswallin.net -

Stefan DK3SB, sent me this picture of his version of my frequency distribution amplifier. He modified the PCB to make it narrower (160mm), to fit a  Hammond1455R1601 enclosure (about 25 euros from Farnell). Nice work! KiCad sources and gebers hopefully to follow, on ohwr.org


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anderswallin.net -

THS3491 looks like a good op-amp for frequency distribution amplifiers. I tried it with a slightly modified FDA-design. With 200R feedback/gain-resistors it self-oscillates, but with 1k resistors (976R suggested in datasheet) it is stable. However I see 16dB of gain-peaking! Using +/-13V3 supply-rails it does drive a 20Vpp sine-wave-ish looking waveform into a 1 MOhm […]


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anderswallin.net -

Aivon has now produced around 16 of these distribution amplifiers. There's a new op-amp which might be interesting to try for the FDA board: THS3491. It has a grounded pad under the op-amp, so we need a new EP-variant of the PCB.


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anderswallin.net -

I sumbitted a few pull-requests to the KiCad libraries with some parts used on recent boards. Let's see if/when they make it into the main/released libraries... On the to-do list is to submit an SFP-connector and Cage footprint... (unless someone has already done that?). Abracon ABLNO SMD footprintBNX025 EMI-filterMurata BNX025 EMI-filterLT1963 positive adjustable LDOLT3013 negative […]


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liebemarlene vintage -

7. Coupon Code about Portable Audio & Video › Portable DVD Players and FREE One-Day Shipping on Select Electronics with your Discover Card we found them on date March 7,2012 If you looking for this items It's a great time to shopping This Offer valid from February 15th, 2012 through March 31st, 2012 or while promotional funds last. If you interested in Portable Audio & Video › Portable DVD Players  Please Enter code at check out  " DSCVRSHP" Check it out


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liebemarlene vintage -

9.Amazon Coupon Code for Electronics such as GPS Navigator , Car MP3 DVD Player Free One day shipping offer valid though March 31,2012 so hury up and don't forget promo code DSCVRSHP at Checkout See the deals Click here


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Cascadeus -

Uusi vuosi, vanhat kujeet. Winter NAMM 2011 musiikki- ja matolaatikkomessut Anaheimin Työväentalolla on avattu ja esittelyssä on taas valtava määrä uuden sukupolven soittopelejä. Listaan tähän tapahtuman aikana julkistettuja uusia kiinnostavia musiikintekolaitteita ja -ohjelmistoja. Akai Pro SynthStation49 for iPad Akai Pro EIE I/O Akai Pro RPM3 Samson Meteor Mic   Tascam Portastudio for iPad Numark NS6 Numark iM1 Numark iM9 Numark DJ 2 GO Numark NDX800 Numark iDJ App for iPad Numark...


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Kokeellisen elektroniikan seuran projektiblogi -

This is a work in progress, we are just starting. For years we have been talking about a mobile experimental electronics platform, that we could drive anywhere. Now we have a solid base for that. We were just given an electric car, Elcat. Our aim is to integrate mobile experimeltal electronics laboratory and facilities to play electronic sounds straight from the van. Idea is to integrate all essential features inside the van, so we just drive it anywhere we want to show our stuff. Project will...


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anderswallin.net -

The second multiplexer prototyped, with a slightly larger enclosure placing the Arduino Due + Ethernet Shield directly in the front panel. This requires desoldering the DC-connector on the Arduino Due. Bandwidth, insertion loss, and pulse-shape distortion measurements should be done next.


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anderswallin.net -

RF-multiplexer v2 board in enclosure, controlled by Arduino Due with Ethernet Shield. When issuing commands to change state as fast as possible this combination seems to do a state-change in about 45 milliseconds - this is not verified on the RF-side (didn't measure that there is actual RF contact made/broken in those 45 ms).


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anderswallin.net -

Version two of the RF Multiplexer adds more relays to the 8 pcs HF3 I was using in the first attempt. The added relays keep the RF-path from the selected input to the COM-output as clean as possible with no unterminated branches or stubs. The cost is anothe 7 relays with associated darlington-drivers and control-logic. […]


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TAMK School of Art and Media -

Posters at the entrance to the Mediapolis campus. The first official workshop day of the iWeek started today with a bang. People are bursting with excitement and anticipation of what is to come. Workshops are happening, exhibitions and installations on the second floor are looking great, and people are still working hard to make everything perfect for the performances in United Studios. It’s a long eventful day ahead of us and everyone is working together to make it as enjoyable and...


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Poker Wits -

Rake. Something no Poker Player can avoid, at least when playing for real money and playing at non-home game. So it is in order you know all about it, if you don't already. Rakeback is the opportunity so many decide not to tell new players. Instead these people and sites go for personal gain and leave the innocent new player unaware he/she has just lost thousands of dollars of potential gain over time. Unfortunately, the same goes for the "refer-a-friend" services which don't do you or your...


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Antti Alanen: Film Diary -

Tholen Gladden, US 1949 Print source: Library of Congress, Culpeper, VA Running time: 9 minutes Viewed at The Nitrate Picture Show (NPS), George Eastman Museum, The Dryden Theatre, Rochester, 4 May 2018 NPS: " About the print: The difference between stock footage from previous productions and new footage shot for this film is noticeable, but the print itself is in very good condition. Shrinkage: 0.7% About the film: The first in the series of Academy of Motion Picture Arts and Sciences’...


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TAMK School of Art and Media -

Now that this year’s International week is over we can only wait until next year to experience this eventful week again. The iWeek has been a long tradition in TAMK and each year it has only gotten better. We learn from previous years and aim to improve the event so that all students, visitors, participants, and teachers can enjoy it to the fullest. The first International week was organized year 2008, then named Tampere Art Factory, TAF. The idea for this type of international event came...


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anderswallin.net -

This is the third prototype for the 1:8 RF-multiplexer (https://www.ohwr.org/projects/rf-mux-8ch). The board is now simplified with only one 10-pin ribbon-cable attaching it to the Arduino MKR Zero + Ethernet shield. Traco PSU for 5V supply.


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