There isn't much in those units to steal lol. The pinout for the lcd display may be found by finding the holten chip pinout, unless it's just full of generic drivers. I would keep the beeper if it was a ceramic disk type. It's good fun stripping stuff for free, the best part :-D I've made a few variable power supplys from bits and bobs i've saved. My mate still uses one i made in 1988, it's still working and it uses a crappy amstrad stereo mains transformer. A decent amstrad transformer, Now that's a sentence i never thought i would say :)
That top IC looks like it has a TTL serial port on it... interesting to see if there's any data to be sniffed or if reprogramming is possible. .......... oh look.... a JTAG port!
From cheap carbon monoxide boxes and upwards, it seems far too much stuff is 'disposable' these days. Point in case, my ipad mini is coming to the end of its life now that Apple 'have decided' that they will not update it again and most apps now won't run on it, yet it still works perfectly. Makes me very irritated. It's not like I could put Linux on it either, so what happens to it.... junk, ewaste. It's not right. As you say, why not make these detectors simply have a replaceable component that snaps in to place? Cost.. no more no less. Knock them out cheap by the thousands and never mind the end effect on the environment. Such practice should be outlawed.
About 30 years ago I bought a CO detector which actually did come with a replaceable detector. The whole device looked like a slightly fat smoke detector, no display, and the replaceable part was a bit bigger than a pp3 battery This combined the battery with the detector so that both would need to be replaced annually. It was fairly expensive, 30 pounds or so, and of course the inevitable happened: when the battery/detector needed replacing after a year in service this proprietary part was not to be found anywhere. We survived without buying another CO detector until I bought one just like yours a by now must also be coming up to the end of its life. I have a question about the LCD. Is that a hd44780 style module worth removing to use with an Arduino or is just an LCD driven directly by one of the chips on the back?
I think it refers to the K-mechanism, because it was much faster to get into modes than the previous G-mechanism as used on the FS88, FS90 and other early 90s machines. The G-mechanism did a lot of clunking and clicking to get between play and winding or back for example.
It's detected by the chemicals in that cell which looks like a battery (because it's built in much the same way). It is a small fuel cell composed of noble metal electrodes in an electrolyte, but the chemistry is beyond me.
There isn't much in those units to steal lol.
The pinout for the lcd display may be found by finding the holten chip pinout, unless it's just full of generic drivers.
I would keep the beeper if it was a ceramic disk type.
It's good fun stripping stuff for free, the best part :-D
I've made a few variable power supplys from bits and bobs i've saved.
My mate still uses one i made in 1988, it's still working and it uses a crappy amstrad stereo mains transformer.
A decent amstrad transformer, Now that's a sentence i never thought i would say :)
Some early Amstrad amplifiers were actually not bad at all.
That top IC looks like it has a TTL serial port on it... interesting to see if there's any data to be sniffed or if reprogramming is possible.
.......... oh look.... a JTAG port!
That is far more complex than mine. Mine has 1 LED, a test button and a beeper. LOL.
That's why I thought this one would be worth taking a look at, there is much more going on that in some models.
From cheap carbon monoxide boxes and upwards, it seems far too much stuff is 'disposable' these days.
Point in case, my ipad mini is coming to the end of its life now that Apple 'have decided' that they will not update it again and most apps now won't run on it, yet it still works perfectly. Makes me very irritated.
It's not like I could put Linux on it either, so what happens to it.... junk, ewaste. It's not right.
As you say, why not make these detectors simply have a replaceable component that snaps in to place?
Cost.. no more no less. Knock them out cheap by the thousands and never mind the end effect on the environment.
Such practice should be outlawed.
Well said.
About 30 years ago I bought a CO detector which actually did come with a replaceable detector. The whole device looked like a slightly fat smoke detector, no display, and the replaceable part was a bit bigger than a pp3 battery This combined the battery with the detector so that both would need to be replaced annually. It was fairly expensive, 30 pounds or so, and of course the inevitable happened: when the battery/detector needed replacing after a year in service this proprietary part was not to be found anywhere. We survived without buying another CO detector until I bought one just like yours a by now must also be coming up to the end of its life.
I have a question about the LCD. Is that a hd44780 style module worth removing to use with an Arduino or is just an LCD driven directly by one of the chips on the back?
It's only an LCD (and backlight).
on a quick question: Do you know what the Panasonic Super drive exactly means? They have the name plastered all over their VCRs!
I think it refers to the K-mechanism, because it was much faster to get into modes than the previous G-mechanism as used on the FS88, FS90 and other early 90s machines. The G-mechanism did a lot of clunking and clicking to get between play and winding or back for example.
But how does it detect CO?
It's detected by the chemicals in that cell which looks like a battery (because it's built in much the same way). It is a small fuel cell composed of noble metal electrodes in an electrolyte, but the chemistry is beyond me.