this kind of optic fiber is probably only plastic so for a full DIY , you can use also fishing wire with a big power led or an old chistmass tree optic fiber lighted.....
I apologize for the questions and how simple they may be, as Im new to this community but very intrigued with the creativity and endless possibilities.
Ok, finally I found the Problem.
I changed the prescaler value of Timer0 becuase I needed a higher PWM Frequenciy.
Unfortuneatly this also affects the millis() function that is used in gw.wait.
It turns out taht with the changed TImer 0 Prescaler 1ms was not 1ms anymore but less. So the gw.wait(750) where only 750ms/64 which is not enough for DS18S20 conversion to take place.
Hi,
nice projet. I am very interested in it.
But why you are using 5 V and not 3.3 V? The ATmea328 works with 3.3 V too and the NRF have to use 3.3 V.
The only restriction on 3.3 V is the clock limitation for the Atmega (8 MHz). But with no crystal it don't care.
For example you could use an HLK-PM03 instead of HLK-PM01 and remove the linear voltage regulator. So you get more space an everything have the same voltage level.
And another point is, it is recommended to use a capacitor (0.1 µF) to ground for each voltage pin (Vcc, Avcc, Aref).
If you are not going to use mysensors look at library example
https://github.com/mcleng/MAX6675-Library/blob/master/examples/read_temp/read_temp.pde
Error:
MAX6875Temp.ino: In function 'void loop()':
MAX6875Temp:24: error: 'class MAX6675' has no member named 'read_temp'
temperature = temp.read_temp();
