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  • RGB | My 2µF
    wire xmas Leave a comment More light Prolly my LAST large perfboard prototype Posted on November 23 2010 by robert I m still alive physically that is Recently I felt the urge to do some soldering an I promptly succumbed to it 3 days later I was done and totally fed up with having to solder using the W word The Continue reading Posted in Arduino Electronics Soldering PCBs Tagged AVR LED madness PCB perfboard prototype RGB soldering ZEN 2 Comments Bad soldering day A rip off literally Posted on July 8 2010 by robert Once in a while I sell one or two of the RGB LED RING boards As not everybody feels comfortable with soldering SMD parts and I ve explicitly warned that it s not that easy and that the RGB LEDs die easily Continue reading Posted in Electronics Soldering PCBs Tagged heap of shit LED plastic PLCC 6 RGB SMD soldering stress temperature 5 Comments RGB LED Ring now available as DIY SMD kit Posted on May 15 2010 by robert The RGB LED Ring is available as a DIY SMD kit Honestly ignore the next two paragraphs Well as of next Monday 18 00 CET to be honest May 17th 2010 I ve already added it to zen cart but it s still Continue reading Posted in Arduino DIY Electronics Tagged AVR LED PWM RGB 17 Comments Nitelite upgrade another RGB thingy Posted on February 28 2010 by robert http www youtube com watch v jU23Af8sHPo A few days ago I visited my parents The main purpose was to deposit my new Lecroy WaveAce 224 DSO I bought it as a gift for myself but I haven t fulfilled all criteria to receive the gift yet Therefore Continue reading Posted in Arduino Electronics Tagged AVR dead bug style free form soldering hack LED modding RGB soldering upgrade Leave a comment RGB LED Toy It works Posted on December 9 2009 by robert Well sort of I finally got the PCBs from sparkfun Almost 6 weeks 9 days only for the air mail letter to get to me Maybe my dear friends at the customs office were busy again Unfortunately my request to Continue reading Posted in Electronics Soldering PCBs Tagged AVR Batchpcb LED PCB prototype PWM RGB 14 Comments RGB LED Toy first order at BatchPCB Posted on November 1 2009 by robert For quite some time I have 19 SMD RGB LEDs sitting in one of my electronics boxes It used to be 20 but I ve ruined one while trying to solder it to perfboard They are 3 single LEDs put into Continue reading Posted in Electronics Soldering PCBs Tagged AVR Batchpcb LED PCB prototype PWM RGB 13 Comments IKEA SAMTID modification part 2 Posted on August 19 2009 by robert Not having the right tools is such a pain The modification I m planning to do requires cutting 72 round 35mm holes into the white plastic foil that forms the Ikea SAMTID

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/rgb/ (2016-02-10)
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  • RoHS | My 2µF
    RoHS war 4 Comments V3 04 PCBs from MakePCB have arrived Posted on July 17 2009 by robert I ve waited for 5 weeks for the 2nd batch of the 64 pixel RGB matrix controller boards This time I ordered from MakePCB as I wanted to test another PCB manufacturer Also I couldn t get gold plated pads from GoldPhoenix for Continue reading Posted in Arduino Electronics Soldering PCBs Tagged hardware lead free makepcb PCB RoHS 4 Comments RoHS compliant soldering Posted on September 13 2008 by robert When I decided to revamp my old hobby called electronics I decided to be RoHS compliant and bought lead free solder make Edsyn type SAC8250 alloy Sn95 5Ag3 8Cu0 7 flux F SW34 no clean melting point 217 C As my good old soldering iron works at Continue reading Posted in Electronics Soldering PCBs Tagged lead free RoHS soldering 3 Comments Search for Recent Comments robert on YauDL Y et a nother u seless D ummy L oad Andrew Duckworth on YauDL Y et a nother u seless D ummy L oad robert on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Archives Archives Select Month January 2016 1 December 2015 2 November 2015 3 October 2015 2 September 2015 10 July 2015 4 June 2015 5 May 2015 2 April 2015 5 March 2015 3 February 2015 2 January 2015 1 December 2014 2 November 2014 2 October 2014 3 September 2014 1 August 2014 2 July 2014 2 June 2014 2 May 2014 2 April 2014 4 March 2014 3 February 2014 2 January 2014 1 December 2013 3 November 2013 6 October 2013 3 August 2013 3 July 2013

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/rohs/ (2016-02-10)
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  • WS2812B | My 2µF
    Leave a comment Small project 12 ⅔ IKEA Samtid mood light BT firmware Posted on April 28 2015 by robert A user of the new version of the lamp has undertaken the heroic task of writing the Bluetooth code for controlling it Here s a sneak peak Posted in Electronics Tagged Älang bluetooth HC 05 IKEA lamp light remote RGB Samtid wireless WS2812B Leave a comment WS2812B ATmega168 breakout a k a RGB LED RING V3 Posted on October 19 2013 by robert No more software PWM no more LED driver chips just intelligent LED pixels These things come with integrated controllers drivers and support 24bit colors 8bit per R G B This makes projects smaller and is much easier on the microcontroller no more need Continue reading Posted in Arduino Tagged AVR breakout LED RGB WS2812B 5 Comments Search for Recent Comments robert on YauDL Y et a nother u seless D ummy L oad Andrew Duckworth on YauDL Y et a nother u seless D ummy L oad robert on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Archives Archives Select Month January 2016 1 December 2015 2 November 2015 3 October 2015 2 September 2015 10 July 2015 4 June 2015 5 May 2015 2 April 2015 5 March 2015 3 February 2015 2 January 2015 1 December 2014 2 November 2014 2 October 2014 3 September 2014 1 August 2014 2 July 2014 2 June 2014 2 May 2014 2 April 2014 4 March 2014 3 February 2014 2 January 2014 1 December 2013 3 November 2013 6 October 2013 3 August 2013 3 July 2013 2 June 2013 6 May 2013 6 February 2013 2

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/ws2812b/ (2016-02-10)
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  • YauDL – (Y)et (a)nother (u)seless (D)ummy (L)oad | My 2µF
    may get HOT back Step 6 Test fit the heatsink and TO 220 packages DO NOT use thermal grease yet Mount the heatsink so it can slide side to side a bit and insert the TO 220s Insert the mounting clips into the heatsink above each TO 220 there s a little groove and firmly press down towards the heatsink until they snap into place Now adjust the heatsink so everything looks good pins are straight nothing bent Then tighten the screws at the bottom Now it is time to solder the MOSFETs and Schottky diode Once soldered remove the clips and heatsink Now apply a small amount of thermal grease to the TO 220 packages put the heatsink back on tighten the screws and finally add back the mounting clips You re done with soldering As usual please check for solder bridges back Step 7 Connect the 9V battery and fix it with a zip tie back 2 Stay safe NEVER operate the device with a floating control voltage If you use manual control via the potentiometer ALWAYS MAKE SURE the I SET jumper is connected in the HAND position If you use remote control 0 5V signal set the I SET jumper to REMOTE and ALWAYS MAKE SURE you have a good connection to your voltage source In case you use a micro controller that could go into reset state best add a weak 50k or so pull down resistor NEVER EVER connect the device to AC mains Whatever you do please keep the heatsink below 85 C The MOSFETs and Schottky diode are very beefy so they should survive a bit of abuse high current spikes and so on but please watch the heatsink temperature DO NOT let the device run unattended when connected to a high current capable source Always turn the current set potentiometer all the way to the left before you turn on the device back 3 Calibration For calibration you will need several things One multimeter 1 to read the output voltage Multimeter binding posts one multimeter 2 to measure the load current in series with one of the DUT binding posts a small blade screw driver to adjust the calibration potentiometer a power supply that can deliver enough current and a bit of patience Once everything is hooked up turn the current set pot all the way to the left and turn on the dummy load Then turn on your power supply The current reading should be zero no magic blue smoke should rise It would be wise to set and use the current limiting of your power supply A suitable value for calibration might be 2A The following procedure is a single point calibration For most applications this should be enough Feel free to use different points and optimize Step 1 Set the reference voltage to 1V Turn on the dummy load the yellow LED should come on Use multimeter 1 to measure the reference voltage while turning the 10 turn

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2012/06/12/yaudl-yet-another-useless-dummy-load/ (2016-02-10)
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  • 64-pixels | My 2µF
    chip and therefore can be used as a USB to TTL serial programmer too To make it work you Continue reading Posted in Arduino Electronics Tagged 64 pixels AVR LED modding PWM RGB 1 Comment V3 prototypes for sale Posted on April 12 2009 by robert Hi I need to get rid of my V3 prototypes I ve got exactly 3 all gone fully assembled and tested boards RGB LED matrix So if anybody wants them The early bird catches the worm I d be happy Continue reading Posted in Arduino Electronics Tagged 64 pixels AVR LED PWM RGB 28 Comments Experimenting with the PORTC D connectors on V3 boards I²C Posted on April 4 2009 by robert First let s have a look at the pinout of the connectors labeled as PORTC and PORTD on the V3 boards PORTC PIN NAME FUNCTION ARDUINO PIN ARDUINO PIN 1 PC0 ADC0 analog IN 0 digital IN OUT 14 2 PC1 Continue reading Posted in Arduino Electronics Tagged 64 pixels AVR I²C LED PWM RGB serial 3 Comments 8 8 RGB Matrix V3 KICAD SMD part 2 Posted on March 31 2009 by robert Lost in some office surrounded by clueless clerks and low on patience This is my adaption of the famous tag line of Army of Darkness Lost in time surrounded by evil and low on gas which describes what I ve been Continue reading Posted in Arduino Electronics Soldering PCBs Tagged 64 pixels AVR LED PWM RGB Seeedstudio SMD TQFP 14 Comments 8 8 RGB Matrix V3 KICAD SMD part 1 Posted on February 26 2009 by robert Now that I ve started to work with KICAD I ve made the transistion to SMD parts and finally got my switch back I hade to remove it in V2 as the DIP parts took too much space The quartz is back Continue reading Posted in Arduino Electronics Soldering PCBs Tagged 64 pixels AVR LED PWM RGB Seeedstudio SMD TQFP Leave a comment 8 8 RGB Matrix V2 KICAD test Posted on February 24 2009 by robert I ve converted the files to KICAD Due to size limitations of my project housing 60x60mm I had to remove one switch which was connected to Arduino pin 7 All code that uses button should be removed The remaining one is Continue reading Posted in Arduino Electronics Tagged 64 pixels AVR LED PWM RGB Leave a comment Meggy Jr RGB made it into German newspapers Posted on December 18 2008 by robert So our media have finally seen the light Geeks don t want XBoxes for christmas but something that s fun making it Meggy Jr RGB KITs are available at Evilmadscientist com starting at about 50 You can also get Arduino libraries there to Continue reading Posted in Arduino Electronics Tagged 64 pixels AVR DIY gaming platform LED RGB 1 Comment 8 8 RGB Matrix first prototype on perfboard Posted on September 21 2008 by robert I ve finally managed building a prototype

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/64-pixels/ (2016-02-10)
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  • adapter | My 2µF
    robert The key to successful AVR programming The previous version of this adapter had a major disadvantage assembly was a mess You needed a jig sticky tape not good Posted in Electronics Tagged adapter AVR ISP key PCB pogo pin 8 Comments Tiny PCBs vs large ISP headers Pogo pins to the rescue Posted on July 5 2013 by robert As of late I ve been making smaller and smaller circuit boards fighting for every mm² of space The typical 6pin ISP connector used for programming a lot of the AVR micro controllers has been getting in the way more and more Posted in Soldering PCBs Tagged adapter AVR ISP pogo pin tiny 1 Comment The Half Ohm A mΩ range plug in adapter for your DMM Posted on May 25 2013 by robert The Half Ohm is a very nice and small adapter that plugs right into your DMM The Half Ohm is made by Jaanus Kalde and you can get it here It does NOT come with a battery so make sure you have Continue reading Posted in Electronics Tagged adapter Half Ohm measurement mOhm multimeter resistance Leave a comment MSOP10 TSSOP8 DIP adapters they ve finally arrived Posted on December 17 2009 by robert I ve waited almost 8 weeks and finally the reward And I ve already managed to solder the LT1618 boost converter chip to one of these Compared to soldering TQFP 32 packages this screams for solder paste and a hot air station Continue reading Posted in DIY Electronics Soldering PCBs Tagged adapter MSOP SMD 11 Comments Who needs cheap MSOP10 TSSOP8 to DIP adapters Posted on October 16 2009 by robert Hi I ve been planning to build a prototype driver for the Seeedstudio LED module 1 2 for quite a while but I just cannot get MSOP DIP adapters that are reasonably priced The cheapest single one I could find was 2 50 Continue reading Posted in DIY Electronics Soldering PCBs Tagged adapter MSOP SMD 9 Comments ModernDevice USB BUB Review Posted on June 6 2009 by robert For uploading to home made Arduinos or other boards not equipped with an USB TTL serial converter chip like the Boarduino there s a few adapters out there One of which is the standard FTDI USB TTL serial cable which costs 20 in the USA Continue reading Posted in Arduino Electronics Tagged adapter FTDI moderndevice USB 3 Comments Search for Recent Comments robert on YauDL Y et a nother u seless D ummy L oad Andrew Duckworth on YauDL Y et a nother u seless D ummy L oad robert on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Archives Archives Select Month January 2016 1 December 2015 2 November 2015 3 October 2015 2 September 2015 10 July 2015 4 June 2015 5 May 2015 2 April 2015 5 March 2015 3 February

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/adapter/ (2016-02-10)
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  • AVR | My 2µF
    Continue reading Posted in Electronics Tagged AVR camera digital illumination LED light macro Pentax S5z Leave a comment Small project 4 Serial Knob Posted on February 17 2013 by robert Want one Check out tindie com Posted in Electronics Tagged ATtiny AVR encoder knob quadrature rotary 11 Comments Small project 3 IR controlled MOSFET with PWM Posted on February 16 2013 by robert Want one Check out tindie com This little thing is a variation of a previous project but now with a majority of the parts in SMD packages Needles to say it is also a lot smaller The 2nd biggest difference is Continue reading Posted in Electronics Tagged ATtiny AVR control IR mosfet PWM remote Leave a comment Arduino to go Posted on May 19 2012 by robert I m probably not the first one to do it but it is still a very good idea Especially when combined with a product like Parted Magic Ultimate usefulness Save restore backup image computers AND code Continue reading Posted in Arduino Electronics Tagged arduino AVR avr gcc pmagic usb stick Leave a comment avrispmkII LUFA clone avrdude windows without headache Posted on May 7 2012 by robert The added functionality proposed in this post will be included in one of the next releases of LUFA Please always check the official release of this framework If you use windows you currently have to recompile the firmware based on Continue reading Posted in Electronics Tagged AVR avrdude avrispmkII libusb LUFA Leave a comment Adding IR remote control Posted on March 20 2012 by robert Recently I bought a small IR remote control matching 38kHz demodulating receiver at Adafruit I just couldn t find such a small remote over here As it turns out the remote uses the extended NEC data format which is nicely Continue reading Posted in Arduino Electronics Tagged AVR control IR NEC remote 1 Comment RGB LED Ring V2 sequels don t have to be bad Posted on January 11 2012 by robert Posted in Electronics Tagged AVR BCM LED MBI5168 RGB ring 7 Comments Zombie Meerkat The compulsory Halloween project Posted on October 22 2011 by robert 2x red LEDs 1x RGB LED 1x ATtiny24 1x MBI5168 1x 470R potentiometer 2x 270R 1x 10k 1x 294R resistors perfboard wire solder and a lot of time The victim a meerkat sculpture I wanted to deal with last year Continue reading Posted in Electronics Tagged ATtiny24 AVR halloween LED MBI5168 meerkat zombie Leave a comment Mental illness in microcontrollers or in the programmer Posted on July 11 2011 by robert A while ago I thought it was time to re implement my clumsy attempt to have some sort of communication between 3 microcontroller boards It is half duplex only so that can t be hard can it As the ATtiny24s don t have a Continue reading Posted in Electronics Fix me Software Tagged AVR CTC interrupt ISR ISR NOBLOCK pitfall timer Leave a comment Bleep Labs Nebulophone Chiptunes Posted on

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/avr/ (2016-02-10)
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  • battery | My 2µF
    robert I ve had my IKEA Sunnan since summer 2010 I put it into bright sunlight all the time The only way I can make it light up full blast is to dismantle it charge the batteries externally and reassemble it again What Continue reading Posted in Electronics Tagged battery driver guts IKEA LED schematic solar cell sunnan 19 Comments I shall smite yee till kingdom come Arrrrrr Posted on May 25 2010 by robert ENOUGH OF THIS INSANITY In my previous post I described how and why I ve temporarily wrecked my beloved power supply Thankfully these 390mΩ 5W resistors are available Right now I could only find 5 types but bettar tan nottin Continue reading Posted in Electronics Fix me Tagged battery car lights 2 Comments Search for Recent Comments robert on YauDL Y et a nother u seless D ummy L oad Andrew Duckworth on YauDL Y et a nother u seless D ummy L oad robert on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Serhii on YOUYUE 858D hotair station BLDC Fan speed mod Archives Archives Select Month January 2016 1 December 2015 2 November 2015 3 October 2015 2 September 2015 10 July 2015 4 June 2015 5 May 2015 2 April 2015 5 March 2015 3 February 2015 2 January 2015 1 December 2014 2 November 2014 2 October 2014 3 September 2014 1 August 2014 2 July 2014 2 June 2014 2 May 2014 2 April 2014 4 March 2014 3 February 2014 2 January 2014 1 December 2013 3 November 2013 6 October 2013 3 August 2013 3 July 2013 2 June 2013 6 May 2013 6 February 2013 2 January 2013 5 December 2012 1 August 2012 2 July 2012

    Original URL path: http://blog.spitzenpfeil.org/wordpress/tag/battery/ (2016-02-10)
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