Yes, its indeed not for a inexperienced user.wh7qq wrote: ↑Tue Aug 14, 2018 5:00 pmThe "features" list specifically states AC control by phase control. NOT PWM. "Control dimming level via FIRING ANGLE method !"
The description also lists Arduino demonstration code...this does not translate to RPi without considerable tinkering in the code.
The triac inherently switches off at zero volts.
This board has some utility but it is expensive and will probably either electrocute or start a fire in the hands of inexperienced users.
a few clues in the link..
now i am wadding way out of my depth here but the above would suggest that there are 2 main types of control you should focus on.Speed Controllable (Triac or Voltage)
Energy efficient, backwards curved motorised impeller
The impeller is balanced dynamically in two levels to reduce vibration and noise
Casing made of extremely durable 30% fibreglass reinforced polypropylene
Suitable to ventilate damp or even wet rooms: IP44 rated terminal box
Includes mounting bracket
Maintenance free and reliable quality
Made in Germany
PhatFil wrote: ↑Fri Aug 17, 2018 7:44 pmhow you would wire up/configure a pi to control such an ssr is also beyond my current scope, i would probably look at a cheap out of the examples folder solution perhaps using a dirt cheap stepper motor to turn the physical pot
https://www.ebay.co.uk/itm/Smart-Electr ... SwqVJaxSdX
im sure the electrical engineers reading this are feeling the pain..
At least the servo voltage is save to use. And you don't play with the means voltageBrandon92 wrote: ↑Thu Aug 16, 2018 9:13 pmedit
I personally think you should buy a official dimmer. Than you now for sure that you won't burn you house down. Because I don't think you have the right knowledge about this subject. Also I found about that a real dimmer is not much expensive as the kit you want to buy. And you could possible hack into the office one. For example, if that product have a potentiometer, you could control the position by a servo. That is controlled by your pi
What is "this"? And how did you all connected and programmed. Please give us a little bit more information to help you...
I think that "two levels" is a bad translation from the original German and was meant to mean two axes or two directions or something like that. Not that the fan will hum or vibrate annoyingly at other than two speeds.
Unfortunately does't provide you link any information about your current dimmer. Other than a image.jhnn wrote: ↑Fri Aug 17, 2018 9:40 pmSorry, here is the dimmer that i use from 5 years
https://www.amazon.fr/Prise-Variateur-d ... B0058CIHWS
drgeoff wrote: ↑Fri Aug 17, 2018 9:18 pmI think that "two levels" is a bad translation from the original German and was meant to mean two axes or two directions or something like that. Not that the fan will hum or vibrate annoyingly at other than two speeds.
The AC dimmer in his opening post doesn't have any kind of control logic. So, if he applies a PWM signal to that input. The PWM signal goes to the TRIAC direcly. And that is not good, as you also said.grahamed wrote: ↑Sun Sep 23, 2018 6:32 pmThe low-voltage and high voltage sides are said to be fully isolated - I take this to mean that the PWM signal passes through an opto-coupler where it is used to control the phase-angle controller - more than likely implemented by a uController (possibly, but not necessarily, deriving a d.c. signal proportional to the PWM along the way).