static4067
New Member
Hello all,
I'm using a picaxe 28x2 with a ds18b20 sensor. I have the sensor on 5v, ground, and the signal pulled high on a 4.7k resistor to pin c.7.
Using the below code:
And I get the below results with the sensor just sitting on the table.
Any ideas on why this is happening?
I'm using a picaxe 28x2 with a ds18b20 sensor. I have the sensor on 5v, ground, and the signal pulled high on a 4.7k resistor to pin c.7.
Using the below code:
Code:
Celsius:
Readtemp12 c.7,w1 'read in result ds18b20
convert:
let b9 =43 'Display + (43) space (32)
IF W1 > 64655 THEN ' info - 55 degrees = 64656
let b9 =45 'Display - (45)
W1 = - W1 ' info if - ie w1=1000 display - 10.00 C
ENDIF
W1 = W1 * 25 / 4 ' info + ie w1=8500 display 85.00 C
BINTOASCII w1,b8,b7,b6,b5,b4
IF b8 = "0" THEN : b8 = " " :ENDIF ' zero blanking b8
IF b8 = " " AND b7 = "0" THEN : b7 = " " :ENDIF ' zero blanking b7
SERTXD (CR, LF, "Temperature ",b9,b8,b7,b6,".",b5,b4," Degrees C", CR, LF)'resolution to 0.06
PAUSE 1000
GOTO celsius
Code:
Temperature + 71.52 Degrees C
Temperature +120.31 Degrees C
Temperature +120.62 Degrees C
Temperature + 47.59 Degrees C
Temperature +127.50 Degrees C
Temperature + 44.21 Degrees C
Temperature + 42.34 Degrees C
Temperature +118.81 Degrees C
Temperature + 73.02 Degrees C
Temperature + 61.21 Degrees C
Temperature + 49.02 Degrees C
Temperature + 43.77 Degrees C
Temperature + 60.96 Degrees C
Temperature + 36.90 Degrees C
Temperature + 56.46 Degrees C
Temperature +121.87 Degrees C
Any ideas on why this is happening?