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  • DIY- UNIVERSAL PIC AND AVR PROGRAMMER

    Hi Asishjohney,regarding your programming expansion sheet for PIC24-30-33-LVICSP ,could you please make clear to me where CK6_5V and D6_5V are connected??directly to pins 2 and 3 of connector 61 respectively?? thank you!

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  • DIY- UNIVERSAL PIC AND AVR PROGRAMMER

    Hi,looking for a programmer to accept pic16f1778 MCU,from yr available list ,its not included...any idea???thank you.

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    hello ,again,Yannick,hope that I do not exxaggerate your patience....The unit was performing pretty well,just a couple of days ago,connected to antenna/power supply and at the same time resetting it.Well,satellites received are 9 to 11,pulse is coming ,sat lock/running leds o.k.Noticed on lcd screen that entering phase 200s never reaches 2000000000 but it is refreshing somewhere 1999998510The most important is that the control voltage coming from pwm never exceeds 0.85 volts ....it finally moves to 1000s session and it stops at 9,999,999,992.825 and the control voltage remains very low,i.e the same....previously,when locking the control voltage was 3.205 volts.Components for filtering are o.k. i.e. 100uF/100n, any idea what is happening?

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    Hello again Yannick,loading your latest firmware,had the same as previous results....common sense saying that something wrong was on my side....after investigating and nothing found,as a last movment rep[laced the mcu chip and...voila! everything worked perfectly!!!its first time facing a mcu partially working!perhaps due to repeated loading/resetting something happened.Now,I would like to point another important part of the procedure.Don t know how others are facing satellite reception but to complete a procedure,had to be outdoors!!!concider it ridiculus...I did it replacing patch antennas with same result.So with an external antenna could work indoors.Manythanks for your patience and great job! best wishes.

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    Hello Yannick,well,loaded your firmware 1.53....upon switching on,the rx led starts flashing and the "warming' red led as well...next appears "no config/set pwm to 50%,next" warming and sat/wait for 15min" and finally "waiting..."The push button has been deactivated,if press during the above procedure,nothing happens...all the other leds like sat lock/counting/run remain inactive...left it at this situation a whole day ,nothing changed....Reloaded the previous firmware 1.4 and it functioned well to the end,i.e. reached the config,10.000000000 showed....again loaded the latest version but had the same as above described results.....the above means that the hardware is o.k. any comments please????

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    Hi Yannick,absolutely agree with you,is\what I finally did...I think that,for practical reasons ,i.e. to keep the system as compact as possible ,a miniature preamp.connected between the patch antenna and the rx module could solve this problem,hunting arround for the sat reception...all the best.

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    Hello again,now regarding your firmware update to 1.54 in your description you say that you have programmed PB4 to 0 and bridge PB5 to it so both be 0....As I am using ISCP programming,PB4 is the MISO and PB5 the SCK....Is it possible to make it clear what to do? thank you

    Hi Yannick,thats simple and clear,all understood....manythanks.

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  • GPSDO YT 10 Mhz Lcd 2x16 With LED, UTC Time and GPS Localisation.

    Hi Yannick,greatly appreciate for your very fast response,kindly note:1.power supply can handle upt to 1.5a and its totaly clean,checked with oscilloscope.2.on all of your comments ,have noticed that the unit has to "see" more than 9 satellites....I have never seen more that 5 satellites during all phases....does the lcd screen show all of them on top right corner? they appear just as numbers,have shown 8,9,10,11,12 I am living in middle/west of the U.K....do you think that this maybe the problem? how can I proceed ,given the fact that have used an external antenna,like that you have included in your description...All descriptions regarding sattelite spotting say that 3 are needed for triangulating....Will update software to 1.53 asap....kindy send me your comments in order …

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    Hi Yannick,greatly appreciate for your very fast response,kindly note:1.power supply can handle upt to 1.5a and its totaly clean,checked with oscilloscope.2.on all of your comments ,have noticed that the unit has to "see" more than 9 satellites....I have never seen more that 5 satellites during all phases....does the lcd screen show all of them on top right corner? they appear just as numbers,have shown 8,9,10,11,12 I am living in middle/west of the U.K....do you think that this maybe the problem? how can I proceed ,given the fact that have used an external antenna,like that you have included in your description...All descriptions regarding sattelite spotting say that 3 are needed for triangulating....Will update software to 1.53 asap....kindy send me your comments in order to concentrate on the real problem.....again,MANYTHANKS!!!!!

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