does anyone have a good schematics for· line folowing with the bs2, or any info.
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
Could you send me the attachment too.· I am interested in the line following project too.· thanks. :-)
Original Message
From:Arístides Alvarez To:basicstamps@egroups.com Sent: Friday, August 18, 2000 6:36 PM Subject: RE: [noparse][[/noparse]basicstamps] line folower
Hello Todd,
does anyone have a good schematics for· line folowing with the bs2, or any info.
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
Original Message
From:Gliebe-Tronics To:basicstamps@egroups.com Sent: Saturday, August 19, 2000 10:05 AM Subject: Re: [noparse][[/noparse]basicstamps] line folower
Could you send me the attachment too.· I am interested in the line following project too.· thanks. :-)
Original Message
From:Arístides Alvarez To:basicstamps@egroups.com Sent: Friday, August 18, 2000 6:36 PM Subject: RE: [noparse][[/noparse]basicstamps] line folower
Hello Todd,
does anyone have a good schematics for· line folowing with the bs2, or any info.
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
You have to adjust the circuit with the potentiometer Pot, to obtain a zero in Black and a one in White.
If the Pot is out of range you could change its value. The pot value depends on the parameters of your semiconductors.
The printed circuit board (P.B.) must be at about 1 cm from the floor (depending on the size of your semiconductors).
We used recicled semiconductors from PC floppy disk drives and PC mouses.
Mensaje original
De:Gary Chung Para:basicstamps@egroups.com Enviado: Domingo, 20 de Agosto de 2000 01:31 p.m. Asunto: Re: [noparse][[/noparse]basicstamps] line folower
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Comments
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
Saludos,
Arístides Alvarez
Curso de Robótica
Mar del Plata
Argentina
aristides@copetel.com.ar
Original Message
From: Arístides Alvarez
To: basicstamps@egroups.com
Sent: Friday, August 18, 2000 6:36 PM
Subject: RE: [noparse][[/noparse]basicstamps] line folower
Hello Todd,
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
Saludos,
Arístides Alvarez
Curso de Robótica
Mar del Plata
Argentina
aristides@copetel.com.ar
toad1611@yahoo.com
Please send to Gary.Chung@diyelectronics.com
Original Message
From: Gliebe-Tronics
To: basicstamps@egroups.com
Sent: Saturday, August 19, 2000 10:05 AM
Subject: Re: [noparse][[/noparse]basicstamps] line folower
Could you send me the attachment too.· I am interested in the line following project too.· thanks. :-)
Original Message
From: Arístides Alvarez
To: basicstamps@egroups.com
Sent: Friday, August 18, 2000 6:36 PM
Subject: RE: [noparse][[/noparse]basicstamps] line folower
Hello Todd,
thanks
We obtained very good relults simply with two photodiodes, and two phototransistors.
This way you make a pair of sensors that·don't need a constant light intensity.
The sensors separation·must be smaller than the line wide.
If you need more info, i.e. schematics, I could send an attachment to YOU EXCLUSIVELY.
En CASTELLANO:
Dije que obtuvimos buenos resultados simplemente con dos fotodiodos y dos fototransistores, formando un par de sensores que no necesitan luz externa. Deben estar separados por una distancia menor al ancho de la cinta. Si quieren más información en castellano pueden pedirla a la lista RoboticaMardelPlata en eGroups.
Saludos,
Arístides Alvarez
Curso de Robótica
Mar del Plata
Argentina
aristides@copetel.com.ar
I did what Victor said.
I upload the schematics on the eGroups page:
··· http://www.egroups.com/group/basicstamps
This references are for the schematics:
D1;D2 photodiodes (infrared)
T1;T2 phototransistors
You have to adjust the circuit with the potentiometer Pot, to obtain a zero in Black and a one in White.
If the Pot is out of range you could change its value. The pot value depends on the parameters of your semiconductors.
The printed circuit board (P.B.) must be at about 1 cm from the floor (depending on the size of your semiconductors).
We used recicled semiconductors from PC floppy disk drives and PC mouses.
Saludos,
Arístides Alvarez
Curso de Robótica
Mar del Plata
Argentina
aristides@copetel.com.ar
Mensaje original
De: Gary Chung
Para: basicstamps@egroups.com
Enviado: Domingo, 20 de Agosto de 2000 01:31 p.m.
Asunto: Re: [noparse][[/noparse]basicstamps] line folower
Me too.
Please send to Gary.Chung@diyelectronics.com