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Hello all,
I have been having some problems with our gps tracking devices going bad in our vehicles. I noticed that all these vehicles had one thing in common, which was that they always had batteries going dead due to lack of use and sitting in the yard for too long and always having to be...
Some one told me that the lm386 was obsolete and I should use the TDA7052A. Does any one have any experience with this amp, and do you think it would be a better choice? I did try all the stuff that was recommended and I am still getting noise.
Hey guys,
I just build a protoboard circuit from the attached image. I am getting a lot of background noise and a loud pop. The back groud noise comes from both when I am using the amp and when I am just playing it from the A plus chip. But I only get the pop (at the beginning and end of...
Hey, it me again.
I got the isd17040 and I have been playing around with it. I found that when you press next it goes to the next message based on what the last message played was. I am trying to write a config using the PIC16F84 (since its the only one I am really familiar with) and I am...
Ohh,
I think I finally get it.
Does the fwd fast forward to the next message, or does it fast forward like a VCR fast forwarding a tape?
1 pulse to play would play message 1?
1 pulse to play and 1 pulse to fwd plays message 2?
1 pulse to play and 2 pulses to fwd plays message 3?
1 pulse to...
Hey guys,
I am looking into using the ISD1700 to play four different messages based on 4 different negative triggers from a separate device, since in non SPI mode you can only play one recording, I know the only way to do this is through a microcontroller. I am relatively new to using...
Hey guys,
It am creating a circuit that plays 4 separate sound recording (each 10-15 seconds) It was recommended that I use the ISD1700. I looked over the PDF for it and I could not find anything on if the chip would hold more then one message. I have a separate device with 4 negative outputs...
Re: LM386N
This is the voice recording module (https://www.electronics123.net/amazon/datasheet/A96020.pdf) The speaker output from this is going to the input of this amp (https://www.electronics123.net/amazon/datasheet/k17.pdf) the output of this amp is going to a 3" 8 ohm speaker. Both...
LM386N
Hey Guys,
I am trying to amplify an audio signal from a birthday card audio player (A96020) with a LM386N, and all I have been getting is noise, it wont actually play the recording it just plays noise. I think the problem is that I need a pre-amp, if so, I would like to know how to go...
I am looking to build a circuit for a vehicle that detects too much acceleration. I have looked around at a few different accelerometers and keep getting stuck. I just need something that detects when the vehicle accelerates too fast or stops too fast.
Thanks Bassa,
I was wondering what you would recommend for a microphone, label Mic1. Is there some specifications I need to know in regards to the type of mic I use?
Hey guys, I would like to build a device that plays and records audio, kind of like a greeting card circuit but a bit louder and wanted to know if anyone had some schematics for that and where I could find some of the components. Thanks
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