1 sensor line tracking picaxe 08m
@ December 24, 2010
Line tracking
Cost to build:
$30
Time to build:
1 hour
- Control method: Picaxe 08M
- Power source: 4.5V (3AA)
- Programming language: Picaxe basic
- Sensors / input devices: LTH209 IR
only one sensor line tracking, created and programed with picaxe 08m
circuit, very simple:
sensor, lth:
robot:
program:
main:
readadc 2,b0
if b0 < 50 then blanco
if b0 > 50 then negro
low 1
low 4
pause 100
goto main
blanco:
low 1
high 4
goto main
negro:
high 1
low 4
goto main
circuit, simple:
@ Fri, 2010-12-24 20:55
I don't know if it matters
I don't know if it matters but the normal way is to have the load (motor) on the collector side of the transistor. You should probably also have 1k resistor on the base to saturate the transistor. I would also recommend having a diode over the motor.
@arbarnhart: It seems that he is using two motors and two transistors and just running one of them to turn. (I might be wrong...)
@ Fri, 2010-12-24 21:26
Trying to interpret the
Trying to interpret the code, it appears it will go straight only with a sensor reading of exactly 50. Higher, it adjusts one way, lower the other. Is the line a seam between a black panel and a white panel?
@ Fri, 2010-12-24 20:52
I have to try this!
I have to try this!
@ Fri, 2010-12-24 20:51
maybe the line is half
maybe the line is half black and half white. So when it sees white, it goes left and when it sees black, it goes right.
@ Fri, 2010-12-24 18:19
I am not fluent in PICAXE,
I am not fluent in PICAXE, but I am intrigued in the simplicity and the one sensor. How do you know whether to adjust left or right when you go off line?