englishian
- Sep 2, 2017
- 8
- Joined
- Sep 2, 2017
- Messages
- 8
Hi New here
I found this hand made device
that looks like a speaker/announcer of some kind.
16F87* (6 or 7 I'd guess)what number is on that larger chip directly above it ?
I think it is one of the PIC family of micro-controller IC's
it could be a simpe distance ranging alarm (parking?).
Thanks Dave When I said hand made I did not mean the Board. It is mounted to a Stainless Steel outlet cover with like a shroud covering whatever(looks like a speaker) the black and red leads connected to the board.hi ya Ian
welcome to EP
definitely doesn't look hand made .... all hi tec placing of surface mount devices
that looks nothing like that
the chip in the middle ... TL852 is a sonar ranging receiver
http://www.ti.com/lit/ds/symlink/tl852.pdf
the datasheet I linked to will give you some ideas
The first thing you should always do is search for datasheets for devices on an unknown board
what number is on that larger chip directly above it ?
I think it is one of the PIC family of micro-controller IC's
cheers
Dave
Can we tell me what AC power supply is needed? and which terminal to connect + -16F87* (6 or 7 I'd guess)
I see the usual AC input (power supply circuitry) and a switching relay. If it is sonar related (and the TL852 seems to indicate this) it could be a simpe distance ranging alarm (parking?).
Hi All so I took some more of it apart and found a senscomp part inside. I searched that and found this http://www.senscomp.com/pdfs/sonaswitch-1400-manual.pdf . What I have is the same but made of stainless steel and not plastic.
There Should be power on J3 and J4 + and Com being negative when tested with meter and when something is detected turn power off?You have all you need in the link you posted above and in this one.
Full Specs,calibration procedure and operation.
Contacts J3-J4 are normally open,when the board detects an object J3-J4 will close(short).
I think I am missing something. So J3-J4 don't have a voltage I can use to say turn on a LED etcThe contacts J3-J4 are actually non-dedicated("floating") relay(K1A) contacts.
You can connect an ohmmeter to them and check :
1. infinity when nothing detected .
2. short when object detected.
You can connect anything you like to them(within relay limits).
I think I am missing something. So J3-J4 don't have a voltage I can use to say turn on a LED etc