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  1. OLIVE2222

    Salvage components from Scrap Circuitry

    Hi Wotan, The thread here under is talking about the scrap idea. https://www.electronicspoint.com/old-vcrs-t241066.html just have a look cheers, Olivier
  2. OLIVE2222

    how to make buzzer only beep once.

    Hi Doug, The figure10 apply for any of the 2 monostable. As we (arbitrarily) use the first one when mapped with the pinout, the second one connections becomes: PIN 9 leave unconnected 10 leave unconnected 11 Go to + 12 Grounded 13 Go to + 14 leave unconnected 15 Grounded The pin 1...
  3. OLIVE2222

    Remote for a Go Kart

    Dear qtband, I agree with the idea of buying readily build stuff. Toy car remote is not the best you can use as despite the mentioned low range the used frequencies are very busy! An Ebay query with remote control relay will pop-up usefull results. A dc powered (via wall adapter) garage door...
  4. OLIVE2222

    Programming GSM units?

    Hi icetalker, most of the GSM modules are using AT commands, they are so easy to handle via small microcontroller Uart port. A part of the job is probably to find out the right connector and to adapt the UART levels. Also ensure that the GSM defaults parameters are fit your (country) needs...
  5. OLIVE2222

    which differential amplifier can i use to amplify a low voltage input

    Hi lordmag! TI make a large range of instrumentation amplifiers. The right model will depend of the needed gain (according to your shunt value and the to be measured current) , the offset and the supply. Here under a filtered results with single supply types...
  6. OLIVE2222

    Adding RGB scart to a Sega Master System.

    Hi NeilTheDruid, Wiring looks very good, I guess you remove the copper under each resistance. The circuit use the composite video signal (MB3514 pin20) as composite sync signal, not sure this will be OK on all TV's. The CXA1145 as a composite sync signal on pin 11 but the MB3514 not . Can...
  7. OLIVE2222

    juicey

    Hi juicey, Looks to be a ghost issue :o Already try to remove the remote control batteries? Olivier
  8. OLIVE2222

    Adding RGB scart to a Sega Master System.

    Hi NeilTheDruid, The MB3514 don 't handle the RGB outputs as the CXA1145 for which the adapter is designed. You should breadboard it as described in the MB3514 datasheet test diagram page8 (serial cap from MB pin's, then resistor to the ground). cheers, Olivier Edit: Well maybe the CXA1145...
  9. OLIVE2222

    7.4 volts to 5.5

    Hi Calin666, For the 7.4 volt 3200mAh li-po battery to 5.5 volts, as stated by Steve, you need a voltage regulator, this one should be OK: http://www.ebay.com/itm/LT1117-DC-5-12V-Out-2-5-9V-Volt-Regulator-Converter-/110782081813?pt=LH_DefaultDomain_0&hash=item19cb206b15 For the 3.7V 1050mAh...
  10. OLIVE2222

    High- Voltage Adjustable Regulator

    Hi Alfa88, Here under 2 solid stats high-voltage power supplies. The pages are in french but they are on the first page of the Google query result :) The schematic is straightforward, the voltage can be changed by changing a R value http://www.dissident-audio.com/RegulHT/Regul.html...
  11. OLIVE2222

    Philips Scope power supply

    Hi Bassetrox and welcome to this forum! The PM3232 is main powered! The din connector is a DC output (for accessories I guess). Maybe yours have the power cord removed. The service manual is available here: http://elektrotanya.com/philips_pm3232_service_manual.pdf/download.html...
  12. OLIVE2222

    PCB manufacture

    Hi Alex, The large rectangular pads are "drilled" on one top side only and . You have very few components on your boards so to save abit on manufacturing you can maybe redraw the board on a single side basis. I can also only submit the bottom solder + bottom mask + drill from you previous...
  13. OLIVE2222

    PCB manufacture

    Oups no Alex, I will chk that tomorrow morning Olivier
  14. OLIVE2222

    Help identifying vintage part

    hello Mike, Welcome to this forum ! your components looks to be zener diode. In the here under link you can find cross references for TRW diodes. However they don' t include exact matching for your parts. The 3 lasts digits gives the voltage...
  15. OLIVE2222

    CPU pin outs...

    Hi cjdelphi, The AVR32 7000 range have an Image Sensor Interface (ISI) and a Pixel Co-Processor Here under the (huge) datasheet http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf and the driver Application Note: http://www.atmel.com/dyn/resources/prod_documents/doc32084.pdf...
  16. OLIVE2222

    How to reusE the ATmega164P ISP?

    Hello Nina, Welcome to this forum ! here under an easy way to share the ISP bus. http://www.atmel.com/dyn/resources/prod_documents/doc2521.pdf cheers, Olivier
  17. OLIVE2222

    PCB manufacture

    Hi Alex, sure single side it 's OK. I don't know how to set single/double side on you CAD package but if you are able to add tracks on both side then it's double side setted. Yes in single side PCB both track and pads are on the same layer (the bottom one) and you will only have 1 NC...
  18. OLIVE2222

    PCB manufacture

    Hi Alex, For the mechanical layer it's on a separate file and looks OK. You have a plated and an unplated drill file, so probably set as double side pcb. When corrected I will submit you files to my PCB manufacturer for (free) check purpose. Olivier
  19. OLIVE2222

    optocoupler driving problem

    Hi, R1 permit to have a LED threshold higher then Vf. It 's not the "standard" way to drive it lso. Olivier
  20. OLIVE2222

    PCB manufacture

    Alex, Looks to be OK now. The two holes in the square pads are in the drill file which is looking conform. Olivier
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