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Discussion Groups | Piclist | Capacitive Water detector..????
A discussion group for the PICMicro microcontroller. Also called the Microchip PIC, this list is dedicated to the use and abuse of this fine, simple, microcontroller. Close to topic posts are welcome, ie. general electronics.
Capacitive Water detector..???? - yosupicprog - Dec 1 19:42:43 2008
Hi to all,
=20
=20
My name is Yosu Izaguirre, I=B4m electronic engineer and have one=20
master in automation of controls, but I have a little problem for you=20
to help me...=A1=A1
=20
I=B4m trying to design one water sensor for be read from a one=20
PIC12F675 or PIC16F683, is the same but one have more io pins and=20
another features...
=20
So the fact is that the sensor must be hard worker because must be=20
inside the water for ever and never fail, so I have two circuits=20
thats generate one 2Khz to 4Khz square wave on the output, this=20
square wave is good to me because I can read the period and know if=20
the water is present. My problem is thinking to future because this=20
kind of circuit can generate electrolisys and damage the electrodes=20
probe, so I know that the capacitives probes are good thats why=20=20
=20
I NEED HELP TO FIND THE BEST WATER SENSOR CIRCUIT TO DO THIS JOB.=20
=20
Any pdf, gif, jpg etc... could help...=A1=A1
=20
My problem is not with the pic is with the development of the water=20
sensor...=A1=A1
=20
I know about the Microcontrollers PIC since 1998, I can help to the=20
people forum too, for your help I know about the 10f, 12F, 16F, 18F,=20
24F & 33F PIC microcontroller series, RENESAS mC and Motorolas, but=20
I=B4m the best in Microchip, so anything that can I do for you its ok,=20
so I can comunicate in english 75% and spanish 100%.
=20
=20
Att. Mgs. Ing. Yosu Izaguirre
R&D Engineer
=20
Ingeniero Electr=F3nico (Investigaci=F3n y Desarrollo).=20
=20
Caracas, Venezuela.
=20
Tlf.: +58-212-7539435
=20
Cel.: +58-412-9599092
=20
y...@cantv.net
y...@hotmail.com
y...@yahoo.com
------------------------------------
to unsubscribe, go to http://www.yahoogroups.com and follow the instruction=
s
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
=20
=20
My name is Yosu Izaguirre, I=B4m electronic engineer and have one=20
master in automation of controls, but I have a little problem for you=20
to help me...=A1=A1
=20
I=B4m trying to design one water sensor for be read from a one=20
PIC12F675 or PIC16F683, is the same but one have more io pins and=20
another features...
=20
So the fact is that the sensor must be hard worker because must be=20
inside the water for ever and never fail, so I have two circuits=20
thats generate one 2Khz to 4Khz square wave on the output, this=20
square wave is good to me because I can read the period and know if=20
the water is present. My problem is thinking to future because this=20
kind of circuit can generate electrolisys and damage the electrodes=20
probe, so I know that the capacitives probes are good thats why=20=20
=20
I NEED HELP TO FIND THE BEST WATER SENSOR CIRCUIT TO DO THIS JOB.=20
=20
Any pdf, gif, jpg etc... could help...=A1=A1
=20
My problem is not with the pic is with the development of the water=20
sensor...=A1=A1
=20
I know about the Microcontrollers PIC since 1998, I can help to the=20
people forum too, for your help I know about the 10f, 12F, 16F, 18F,=20
24F & 33F PIC microcontroller series, RENESAS mC and Motorolas, but=20
I=B4m the best in Microchip, so anything that can I do for you its ok,=20
so I can comunicate in english 75% and spanish 100%.
=20
=20
Att. Mgs. Ing. Yosu Izaguirre
R&D Engineer
=20
Ingeniero Electr=F3nico (Investigaci=F3n y Desarrollo).=20
=20
Caracas, Venezuela.
=20
Tlf.: +58-212-7539435
=20
Cel.: +58-412-9599092
=20
y...@cantv.net
y...@hotmail.com
y...@yahoo.com
------------------------------------
to unsubscribe, go to http://www.yahoogroups.com and follow the instruction=
s
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
Re: Capacitive Water detector..???? - jlcava - Dec 20 16:47:20 2008
Yosu, if you are using 2 khz square signal, no electrolisis is=20
possible and stainles steel electrodes remain ok for mode than 5 to 7=20
years inside a cofee machine, for example.
I am using this kind og water sensor for more than 10 years without=20
problems.
Jose Luis Cavasassi
Buenos Aires, Argentina
www.cavadevices.com
--- In p...@yahoogroups.com, "yosupicprog"=20
wrote:
>
> Hi to all,
>=20=20
>=20=20
> My name is Yosu Izaguirre, I=B4m electronic engineer and have one=20
> master in automation of controls, but I have a little problem for=20
you=20
> to help me...=A1=A1
>=20=20
> I=B4m trying to design one water sensor for be read from a one=20
> PIC12F675 or PIC16F683, is the same but one have more io pins and=20
> another features...
>=20=20
> So the fact is that the sensor must be hard worker because must be=20
> inside the water for ever and never fail, so I have two circuits=20
> thats generate one 2Khz to 4Khz square wave on the output, this=20
> square wave is good to me because I can read the period and know if=20
> the water is present. My problem is thinking to future because this=20
> kind of circuit can generate electrolisys and damage the electrodes=20
> probe, so I know that the capacitives probes are good thats why=20=20
>=20=20
> I NEED HELP TO FIND THE BEST WATER SENSOR CIRCUIT TO DO THIS JOB.=20
>=20=20
> Any pdf, gif, jpg etc... could help...=A1=A1
>=20=20
> My problem is not with the pic is with the development of the water=20
> sensor...=A1=A1
>=20=20
> I know about the Microcontrollers PIC since 1998, I can help to the=20
> people forum too, for your help I know about the 10f, 12F, 16F,=20
18F,=20
> 24F & 33F PIC microcontroller series, RENESAS mC and Motorolas, but=20
> I=B4m the best in Microchip, so anything that can I do for you its=20
ok,=20
> so I can comunicate in english 75% and spanish 100%.
>=20=20
>=20=20
>=20
> Att. Mgs. Ing. Yosu Izaguirre
> R&D Engineer
>=20=20
> Ingeniero Electr=F3nico (Investigaci=F3n y Desarrollo).=20
>=20=20
> Caracas, Venezuela.
>=20=20
> Tlf.: +58-212-7539435
>=20=20
> Cel.: +58-412-9599092
>=20=20
> yosuizaguirre@...
> yosupicprog@...
> yosupicprog@...
>
------------------------------------
to unsubscribe, go to http://www.yahoogroups.com and follow the instruction=
s
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )
possible and stainles steel electrodes remain ok for mode than 5 to 7=20
years inside a cofee machine, for example.
I am using this kind og water sensor for more than 10 years without=20
problems.
Jose Luis Cavasassi
Buenos Aires, Argentina
www.cavadevices.com
--- In p...@yahoogroups.com, "yosupicprog"
wrote:
>
> Hi to all,
>=20=20
>=20=20
> My name is Yosu Izaguirre, I=B4m electronic engineer and have one=20
> master in automation of controls, but I have a little problem for=20
you=20
> to help me...=A1=A1
>=20=20
> I=B4m trying to design one water sensor for be read from a one=20
> PIC12F675 or PIC16F683, is the same but one have more io pins and=20
> another features...
>=20=20
> So the fact is that the sensor must be hard worker because must be=20
> inside the water for ever and never fail, so I have two circuits=20
> thats generate one 2Khz to 4Khz square wave on the output, this=20
> square wave is good to me because I can read the period and know if=20
> the water is present. My problem is thinking to future because this=20
> kind of circuit can generate electrolisys and damage the electrodes=20
> probe, so I know that the capacitives probes are good thats why=20=20
>=20=20
> I NEED HELP TO FIND THE BEST WATER SENSOR CIRCUIT TO DO THIS JOB.=20
>=20=20
> Any pdf, gif, jpg etc... could help...=A1=A1
>=20=20
> My problem is not with the pic is with the development of the water=20
> sensor...=A1=A1
>=20=20
> I know about the Microcontrollers PIC since 1998, I can help to the=20
> people forum too, for your help I know about the 10f, 12F, 16F,=20
18F,=20
> 24F & 33F PIC microcontroller series, RENESAS mC and Motorolas, but=20
> I=B4m the best in Microchip, so anything that can I do for you its=20
ok,=20
> so I can comunicate in english 75% and spanish 100%.
>=20=20
>=20=20
>=20
> Att. Mgs. Ing. Yosu Izaguirre
> R&D Engineer
>=20=20
> Ingeniero Electr=F3nico (Investigaci=F3n y Desarrollo).=20
>=20=20
> Caracas, Venezuela.
>=20=20
> Tlf.: +58-212-7539435
>=20=20
> Cel.: +58-412-9599092
>=20=20
> yosuizaguirre@...
> yosupicprog@...
> yosupicprog@...
>
------------------------------------
to unsubscribe, go to http://www.yahoogroups.com and follow the instruction=
s
(You need to be a member of piclist -- send a blank email to piclist-subscribe@yahoogroups.com )