akikorhonen.org

valaisija.blogspot.com

Valaisija: huhtikuuta 2009

http://valaisija.blogspot.com/2009_04_01_archive.html

Suomalaisten strobist-henkisten kuvaajien ylläpitämä blogi. Perjantai 3. huhtikuuta 2009. Valaisija-miitti 22.3.2009. Monitoimisali. Liian monella eurolla kameragearia. 4 mallia. 20 innokasta strobistia. Mitä siitä syntyi? Tässä omakohtainen kertomukseni päivän tapahtumista:. Parikymmentä minuuttia myöhemmin saavumme Hakuninmaalle, jossa Artur ja muutama muu osallistuja on jo paikalla. Jengiä valuu tasaiseen tahtiin mestoille, ja sali alkaa täyttyä kalustosta ja innokkaista strobisteista. Muutamat no...

openservodrive.com

Servo drive developer - Page 2 of 17 - Cutting edge without Bleeding edgeServo drive developer | Cutting edge without Bleeding edge | Page 2

http://openservodrive.com/page/2

Cutting edge without Bleeding edge. Skip to primary content. Skip to secondary content. About Argon servo drive project. Newer posts →. The first SimuCUBE is real! Prototypes of SimuCUBE motherboards and acrylic case have just arrived! The first successful test drive has been done with a big smile :) We hope to have Indiegogo campaign launched on the next week. Get ready for early bird specials! SimuCUBE motherboard with IONI Pro HC and 320 power supply. Construction of the acrylic case. The hardware des...

openservodrive.com

Announcement Archives - Servo drive developerServo drive developer

http://openservodrive.com/category/announcement

Cutting edge without Bleeding edge. Skip to primary content. Skip to secondary content. About Argon servo drive project. SimuCUBE final hardware has just born. Today we received the first samples of final SimuCUBE board designs. Testing of it shows no flaws so we’re giving the green light for the first 250 pcs batch assembly! All parts are already in stock, so assembly should not take too many days. SimuCUBE with the needle bed SimuCUBE production tester device. Argon firmware 2.0 is out! The first succe...

valaisija.blogspot.com

Valaisija: toukokuuta 2009

http://valaisija.blogspot.com/2009_05_01_archive.html

Suomalaisten strobist-henkisten kuvaajien ylläpitämä blogi. Keskiviikko 13. toukokuuta 2009. CLS ja klassinen porttiteoria? Nikonin CLS on varmasti monelle alottelevalle Nikon kuvaajalle helpoin tapa siirtää salama pois rungon päältä. Monelle on tullut yllätyksenä, että oma D80 ja SB600 toimivat myös erillään. Muutamat ovatkin jääneet sitten sille tielleen, eikä sb600 löydä millään enää tietä kameran päälle. Hyvä vaihtoehto tälle koti-valmistujaispotretille olisi portrait-mode ja pop-up:ia.

dgkelectronics.com

Programming box for the GA250 (flashed with OlliW's firmware) : DGK Electronics

http://www.dgkelectronics.com/programming-box-for-the-ga250-flashed-with-olliws-firmware

Subscribe to RSS feed. Programming box for the GA250 (flashed with OlliW’s firmware). Posted by Kalle Hyvönen. Posted on Jul - 10 - 2012. Programming box for the GA250 flashed with OlliW’s firmware. I designed a PCB for a programming box (based on OlliW’s original schematic) for the Assan GA250 gyro flashed with OlliW’s custom firmware (see my original post about flashing your gyro here. The programming box hooks up to your gyro and enables you to tune the parameters on the field. You can get a zip which...

dgkelectronics.com

Inductor Saturation Current Tester : DGK Electronics

http://www.dgkelectronics.com/quick-project-inductor-saturation-current-tester

Subscribe to RSS feed. Quick Project: Inductor Saturation Current Tester. Posted by Kalle Hyvönen. Posted on Sep - 19 - 2014. Telecoms SMPS, parts donator. Inductor saturation current tester. Inductor saturation current tester schematic. The principle how it works is pretty simple. The FET switches current through the device under test (=inductor) and the inductor will start to saturate at some current level which shows up as peaking of the current that is going through the inductor:. 4 Responses so far.

dgkelectronics.com

Adding support for ATMega16U4 to avrdude and a problem with setting the fuses... : DGK Electronics

http://www.dgkelectronics.com/adding-support-for-atmega16u4-to-avrdude-and-a-problem-with-setting-the-fuses

Subscribe to RSS feed. Adding support for ATMega16U4 to avrdude and a problem with setting the fuses…. Posted by Kalle Hyvönen. Posted on Aug - 10 - 2012. I spent the whole yesterday battling with an ATMega16U4 microcontroller. I was trying to set the fuses to use the internal RC-oscillator instead of the external crystal oscillator. In the end I had to modify my avrdude.conf but the problem with the fuses ended up being pretty simple…. Adding support for ATMega16U4 to avrdude. Remember to read your data...

dgkelectronics.com

Aquarium lighting Archives - DGK Electronics : DGK Electronics

http://www.dgkelectronics.com/category/posts/electronics-projects/aquarium-lighting

Subscribe to RSS feed. LED aquarium lighting with an Arduino based PWM timer. Posted by Kalle Hyvönen. Mar - 26 - 2012. Edit: Schematic had a bug, the INT pin on the DS3234 should be connected to pin 2 on the arduino, not the 32kHz pin! I updated the schematic. I bought a small aquarium (54l) as an impulse buy and I needed some lights for it, so naturally I wanted to use LEDs. I also needed a timer for the lights. I also wanted the lights to fade in and out […]. Tip: How to Measure Small Resistances.

dgkelectronics.com

Microwave Noise Source - DGK Electronics : DGK Electronics

http://www.dgkelectronics.com/microwave-noise-source

Subscribe to RSS feed. Posted by Kalle Hyvönen. Posted on May - 5 - 2015. Here is a quick project I made one weekend. I had just gotten my new toys, a Rohde and Schwarz FSIQ 7 GHz spectrum analyzer and two R&S SME 03 signal generators. I wanted to make something where I could employ my new test gear, so I decided to make a microwave noise source. 3x MSA-0386 amplifier response. The peaks showing through are 900, 1800 and 2100 MHz cellphone signals which get coupled to the amplifier. I’m not sur...For the...