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  • YOUYUE 858D+ hotair station — reverse engineering #4 | My 2µF
    value max int16 t value uint8 t eep addr high uint8 t eep addr low CPARAM CPARAM p gain 0 999 0 2 3 min max value eep addr high eep addr low CPARAM i gain 0 999 0 4 5 CPARAM d gain 0 999 0 6 7 CPARAM i thresh 0 100 0 8 9 CPARAM temp offset corr 100 100 0 10 11 CPARAM temp setpoint 50 500 0 12 13 1 2 3 4 5 6 7 8 9 10 11 12 13 14 typedef struct CPARAM int16 t value min int16 t value max int16 t value uint8 t eep addr high uint8 t eep addr low CPARAM CPARAM p gain 0 999 0 2 3 min max value eep addr high eep addr low CPARAM i gain 0 999 0 4 5 CPARAM d gain 0 999 0 6 7 CPARAM i thresh 0 100 0 8 9 CPARAM temp offset corr 100 100 0 10 11 CPARAM temp setpoint 50 500 0 12 13 Continue reading Part V This entry was posted in Arduino Soldering PCBs and tagged firmware PID youyue Bookmark the permalink YOUYUE 858D hotair station reverse engineering 3 More Stencils from OSH Stencils Panellize this 3 Responses to YOUYUE 858D hotair station reverse engineering 4 tx8 says February 25 2014 at 22 02 Thank you very much for sharing this Looks very good My station should arrive tomorrow Will mod it right away Which settings for PID do you generally use the default ones or do you make settings every time depending on the job Reply robert says February 26 2014 at 10 06 Default ones Reply Anton says April 29 2015 at 00 44 Hey robert first of all thanks for your work and for sharing the code I must confess that I bought the device after I stumbled across your blog I just got my device today and the temperature setting button alone is worth the mod But with the PD PID controller and your improvement with the menu this is just awesome Thanks again About the Fan control I also wonder why the did that fancy current control stuff since a WDT and external pull up for PWM fan control would just be fine I think that is really unfortunate because the mcu can t run the fan at full speed for cooldown bummer Reply Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code Search for Recent Comments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

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2013/12/02/youyue-858d-hotair-station-reverse-engineering-4/ (2016-02-10)
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  • YOUYUE 858D+ hotair station — reverse engineering #5 | My 2µF
    white text and what solder mask did you use Reply robert says February 26 2014 at 10 08 No I didn t etch those http www oshpark com http oshpark com shared projects m80CaW1F Reply tx8 says February 26 2014 at 12 36 Wow thats like 15 eurocent per square cm of double layer pcb shipped from usa KRANK Reply robert says February 26 2014 at 14 13 If you need cheap boards more than one try one of these http www iteadstudio com http www seeedstudio com http www elecfreaks com I ve used all of them You can get 10 boards 5x5cm 2 layer silkcreen in green for 14 shipped Etching yourself is only worth it if you need stuff right now If you need special stuff 0 6mm boards internal routing v scoring special shapes try this one http www hackvana com Reply SnakeHanau says April 15 2015 at 18 02 Great work Your Code works absolute perfect Thanks for your work Reply robert says April 15 2015 at 18 57 Thank you Reply Peter says January 11 2016 at 11 30 Hello I just ordered the board from OSH park Unfortunately I neither find the values for C1 und C2 anywhere nor can I find a source for the soldering pins that you have used Could you add that information Thanks a lot Peter Reply robert says January 11 2016 at 13 18 The values are in the schematic file PDF which you may have missed I ve renamed it to make it stick out more I ve added a digikey order number which may work Best to check the dimensions in the datasheet Am besten bekommt man die Sockel von MPE Garry siehe Docs Ordner bei Reichelt Reply Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code 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 7

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/01/05/youyue-858d-hotair-station-reverse-engineering-5/ (2016-02-10)
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  • YOUYUE 858D+ hotair station — reverse engineering #6 | My 2µF
    during start up Reply robert says February 14 2015 at 17 47 Please elaborate Reply Sergii says February 14 2015 at 21 56 http youtu be gg35JDrvLW4 Reply Sergii says February 14 2015 at 22 02 My 858D version without Plus I did modification with 1 Ohm shunt resistor and threw wire from 25 pin Atmega168 to U81 pin with 1 kOhm resistor Reply robert says February 14 2015 at 22 18 OK I see 1 The heat gun MUST be in the cradle before you switch the device on Otherwise you get an error message This is a safety feature to avoid the heat gun turning on after a power failure left on the desk somewhere and burning down your house I will look at it in more detail later Reply Sergii says February 14 2015 at 23 09 Thank you You are made great job Reply robert says February 15 2015 at 23 51 I ve updated the firmware It now displays CrA dLE cradle if the heat gun is not in its cradle when power is turned on Reply Sergii says February 16 2015 at 21 56 Nice solution for noobs like me But still have error when the fan is set to 6 during start up I hope you can solve this Thanks robert says February 16 2015 at 23 30 Go into the system settings menu and increase FSH value https github com madworm Youyue 858D plus blob master Docs modes of operation txt Or just don t leave the fan on 6 Reply Sergii says February 17 2015 at 02 47 FSH Fan Speed Hight What does this option do What it mean I know Reply robert says February 17 2015 at 10 37 Good FSL Reply Sergii says February 17 2015 at 13 08 Increased FSH to 350 from 315 this is minimal value for my station and now FAN error gone when it set to 6 speed Dirk says June 14 2015 at 11 35 Hi i ve git the V4 10 20140415 version of the board and would really like to use your firmware but i ran into a problem i ve got a spare atmega 328p pu which can flawless be programmed with the arduino ide pushing it into the socket of a arduino duemilanove and connection my usbtinyisp selecting a Lillypad 328 I am sure this medod dues not upload a bootloader since i can not reprogramm it the arduino way after that if i programm the blink sketch this way it blinks so my programming flow seem alright Now to the problem if i put the programmed chip into the youyue the display stays off the fan does it s thing the air stays cold do i something wrong or am i missing something Thanks so long Dirk Reply robert says June 14 2015 at 13 16 No display at all error codes maybe Did you recompile the firmware or did you use the binary for the 168

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/03/10/youyue-858d-hotair-station-reverse-engineering-6/ (2016-02-10)
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  • Small project #7 — USB powered inspection light | My 2µF
    magnifier without obscuring anything A few shots with the light in action Hints for assembly R8 and R9 are 1k R7 is 150R gate resistor C1 is 4 7µF The LED resistors are matched to the white LEDs used in this case 110R You may want to place a 10k resistor across the transistor s gate source pins the ones pointing towards the USB connector Design files and code are available via the Projects section see above This entry was posted in Electronics and tagged light USB Bookmark the permalink YOUYUE 858D hotair station reverse engineering 6 PT4115 LED module upgraded to Nichia NT2x757D LEDs Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code 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/2014/03/14/small-project-7-usb-powered-inspection-light/ (2016-02-10)
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  • Small project #8 — ATtiny13 DFN10 programming adapter | My 2µF
    the IC while programming or just put it there Have the pcb traces the same width of the IC pads In that case I think that if they are a little smaller the IC will fit better Reply robert says April 6 2014 at 18 27 Yes a bit of pressure is required Reply Henrik Bruun says May 12 2014 at 15 29 Nice idea Do you have some eagle schematics Have you tryed with TQFP 32 Reply robert says May 12 2014 at 22 52 Hi no eagle files sorry You can have KiCad gerber files though The links are on the Projects page Or just search on github I have not not built something like that for TQFP 32 chips but it works as well enough I just use breakout boards or old prototypes with that footprint and press the chip down with one finger Good enough for programing a few not the way to go for debugging Reply Helmut says May 13 2014 at 17 11 Hi Robert nimm doch ein Gummiband und einen Korken dann hast du den Finger frei Reply robert says May 13 2014 at 20 49 Das lohnt sich fuer 3 sekunden nicht Wird da drinnen ja nur programmiert und fertig Reply WarHawk AVG says September 26 2014 at 08 52 I made a ATtiny13A SSU programmer for our flashlight drivers https oshpark com shared projects nhVgC8ay Not as nice or refined as your overlay ZIF socket the centering alignment plate is very ingenious very very cool definitely need to revise mine excellent work Reply robert says September 26 2014 at 12 42 Well I don t think you d really need an alignment jig just for programming SO 8 chips They re huge I use my trusty old index finger for that You board will work just fine Reply Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code 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

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/04/05/small-project-8-attiny13-dfn10-programming-adapter/ (2016-02-10)
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  • PT4115 LED module – upgraded to Nichia NT2x757D LEDs | My 2µF
    pulsed Total light output is at least 400lm per board As you can see the new LEDs are larger about double the size As the forward voltage is the same as of the previous ones I suspect each package contains 2 chips in parallel This time I used a whole lot more thermal vias to help keep them cool enough I used a different inductor model still 100µH but a lot smaller and less prone to stress fractures as the old top hat one Internal resistance of the new inductor is about 1 35 Ohm the old one has about 1 Ohm The new inductor is also a lot flatter just 2mm high removing any chance of accidentally ripping it off the board or of breaking the ferrite material The Schottky diode was changed too I chose a smaller SS14L model sub SMA package with similar specs 1A 40V All of the back side copper is used as a heat sink The footprint provided in the LED datasheet worked reasonably well using hot air reflow soldering I added some extra flux and only had to nudge 2 LEDs into position I blame uneven heating for their misbehaviour I probably used too small an air nozzle Footprint download 1 2 Please note the thermal vias are NOT part of the footprint you will have to add them yourself The same is true for additional copper pour acting as a heat sink You cannot operate these LEDs at their rated current without some sort of heatsink This entry was posted in Electronics and tagged driver LED light Nichia PT4115 Bookmark the permalink Small project 7 USB powered inspection light Photoelectric smoke detector teardown Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code 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 7 June 2012 6 May 2012 5 April 2012 6 March 2012 2

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/03/21/pt4115-led-module-upgraded-to-nichia-nt2x757d-leds/ (2016-02-10)
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  • Small project #10 — IKEA Samtid reading-light upgrade | My 2µF
    the top of the lamp If for some reason you cannot remove the mains wiring from the center pipe be extremely careful in the following steps or ask for help Damaging the insulation of the mains wiring is a severe safety issue Three new openings must be made One in the central pipe slightly below the swivel joint the next one in the rod that does NOT contain the mains wiring slightly above the joint and lastly one opening close to the point where the LED lamp is mounted Care must be taken to deburr these openings Otherwise the wires insulation will deteriorate and fail after some time Use wire with a thick insulation A solid core wire works nicely for pulling the cable through the openings Power supply considerations This lamp runs best with 24V DC 200mA so it only needs about 5W or thereabouts You will easily find small switch mode power supplies that can handle that An old laptop or external LCD monitor power supply might do the job If you absolutely have to you can alter the supply voltage in a range from about 20V up to 27V DC Overall efficiency might suffer though Standby consumption of power supplies can vary a lot so it is worth to check these things with a power monitor kill a watt or similar Some consume next to nothing on standby others take more than 1W Lamp module Pretty straight forward stuff It s a buck regulator based LED lamp with a slapped on ATtiny microcontroller voltage regulator The micro s sole job is to read the 2 finger sensor contacts and alter the PWM accordingly If the lamp is off the micro goes to sleep The PT4115 is available cheaply on ebay that s why I choose to use it The datasheet is quite usable and gives tips on inductor selection and so forth The Nichia LEDs are high efficency above 100lm W For design files etc have a look at the Projects page on this blog Bill of materials PT4115 LED driver SOT89 5 MCP1804 low drop 5V voltage regulator SOT23 5 ATtiny25 45 85 SO8 wide 6x Nichia LED NT2x757DT warm white or white 100µH inductor Fastron 1616FPS 101M 01 2x 1 0Ω current sense resistor 0805 2x 4 7MΩ biasing resistors use several MΩ exact value not critical 0805 1x 1kΩ resistor 0603 1x 10kΩ resistor 0603 1x Zener diode 5 1V BZX84C SOT23 2x Schottky diode SS14L Sub SMA 3x 100nF 50V 0805 1x 22nF 0805 1x 1µF 50V 0805 1x 4 7µF 16V 0805 The 1kΩ resistor and 5 1V Zener diode are not strictly necessary but I ve found more often than desired that it is wise the use over voltage protection for the DIM input of the PT4115 The 10k pull down resistor is used to prevent the lamp from emitting a bright flash when power is applied It takes a couple of ms until the micro controller is up and running

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/06/22/small-project-10-ikea-samtid-reading-light-upgrade/ (2016-02-10)
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  • Small project #11 — “674” | My 2µF
    bridge it if not needed All design files for grabs 1 2 Made with KiCad This entry was posted in Soldering PCBs and tagged board breadboard iteadstudio PCB perfboard prototype Bookmark the permalink Small project 10 IKEA Samtid reading light upgrade KiCad BZR5025 full windows installer 2 Responses to Small project 11 674 Jordan Sitkin says July 21 2014 at 20 13 These are great Are you selling them I d be happy to throw in on your next order and grab some of these Reply robert says July 21 2014 at 21 19 I put some up on tindie If you need more than just one or two you d be better off ordering a pack of 10 at the usual chinese pcb services I ordered these at iteadstudio Reply Leave a Reply Cancel reply Your email address will not be published Required fields are marked Comment Notify me of followup comments via e mail Name Email Website Leave this field empty CAPTCHA Code 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

    Original URL path: http://blog.spitzenpfeil.org/wordpress/2014/07/01/small-project-11-674/ (2016-02-10)
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