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About Dazza

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    Advanced Member
  • Birthday 03/29/1972
  1. Salvaged Poll

    This poll was found without a topic.
  2. This topic has been moved to Sell/Buy electronics - Job offer/requests.Wrong board [iurl]http://www.electronics-lab.com/forum/index.php?topic=8136.0[/iurl]
  3. Hi grandpa, Virus :) The chances are I won't get it right the first time, or the second time, or the well I'm sure you can guess what comes next ;D. Thanks for the info grandpa vary handy to know ;), there will be parts of my lathe that will need to be made on a lathe, so it sounds like the way to go to get it done on the cheap :D. Virus, yes this can be very dangerous, this is where I started with the hydrogen project http://www.electronics-lab.com/forum/index.php?topic=1321.0
  4. Serial LCD DIY

    Hi :) Ok, I have finally gotten a win with this project. I have a serial LCD working nicely on my breadboard :D and I now just need to design a PCB for it and I'm set 8). How is this for bad luck, I was sending serial characters out on RA1 of my PIC16F84 to my serial LCD project, at the beginning I wasn't surprised it wasn't working, but after a lot of experimenting and trial and error, I was convinced I had done everything right and it should be working. I must have done something wrong somewhere along the line because RA1 had failed >:(. There's a lesson, learnt the hard way ;D ;D.
  5. Electronic Stethoscope 2

    Hi audioguru :) That microphone case is one of many that I made and tested ;), it's a lid from a deodorant aerosol tin, I used cloth stretched over the bottom that's held in place with a cabletie, I then used a type of rubberised foam to insulate the rest of it, which is held in place with electrical tape. The cloth almost eliminates friction noises, but in using the cloth the seal is no longer very good, and allows for some outside noises to be heard, but the rubberised foam that encase the rest of it, helps reduce outside noises. So there is a bit of a trade-off. I also tried using headphones that completely covered my ears, and Yes it did make a difference. Dazza :).
  6. Serial LCD DIY

    Hi MP, Tony Thank you for your reply :D. I have been having a real battle trying to workout how to send pot values to my LCD, if I had a serial LCD I could use this code, to help make the learning process a little easier for me :). Pot 1,255,BO 'Read resistance on pin 1 to 'determine scale Serout 0,N2400, (254,l) 'Clear LCD screen Serout O,N2400, (#BO) 'Send Pot values out on pin 0 serially Pause 500 'Wait 1/2 s Goto start 'Do it again But of course life wasn't meant to be easy ;D, so I have been trying to find another way to go about it, this is where I am at, at the moment. I'm using a 74LS164 serial to parallel converter, and I can initiate and send characters to the LCD using 4 pin's on port B, and I could probably reduce the pin's needed down to 3 but for now this will do me, the main problem I'm having, is working out how to send the resulting pot values from B0 to be correctly displayed on my LCD, I haven't been able to find any example code to work from that is written in PICbasic :(. Any further help would be greatly appreciated, Dazza :).
  7. Serial LCD DIY

    Hi, I'm working on my first serious microcontroller project :). I can't afford to buy a serial LCD :(, so I need a circuit that will allow me to communicate from my microcontroller PIC16F84 serially to my standard 16 x 2 LCD, I just need to be able to send scale values from some senses using standard RS-232, so communication only needs to be one-way from my microcontroller to the LCD. Thanks for any help :). Dazza.
  8. Electronic Stethoscope 2

    Hi, audioguru :D I don't know about being back, it's more of the case that I've found some time away from taking care of my son Ethan, and my partner and daughter aren't hogging our shared dial-up Internet connection playing neopets ;D. I think it was about 12 months ago when I made it, it didn't work as well as I had hoped, that is for what I wanted to use it for, but it does work very well for what it was intended to be used for ;), and with the modifications that you help me with audioguru, it works very well for tuneing into respiratory sounds or heartbeat sounds 8). The green caps that you can see are not correct, I was just experimenting with different capacitors ;D.
  9. Hi, Steven :D I haven't done any hydrogen experiments for quite a while, I haven't been able to do much of any think since Ethan was born, just getting a full nights sleep is a rare thing these days :-\. He is almost seven months old, and he still wants his three hourly feeds through the night :o. I'm still trying to find the time to finish a few other projects, that will support my hydrogen project, I'll get there eventually ;), I hope ;D.
  10. Hi, shahrukh :) Sorry for the late reply, the TV transmitter is still an unfinished project, I couldn't get the right RF transformer (T1) so I could not get the sound to come through :(. I did manage to get it to transmit a very good quality colour picture over a short distance, however I was transmitting to a very old portable TV, and when transmitting to a more modern TV the image was not very good. Regards Dazza.
  11. Ante 50 Years Young

    Happy birthday Ante 8), have a good one mate ;).
  12. This topic has been moved to Circuit/General Requests. [iurl]http://www.electronics-lab.com/forum/index.php?topic=5994.0[/iurl]
  13. Its the time of year for this_.

    Have a good one!!