"Driving the triac in sync with the AC signal in Java is going to be
unfeasible because of latency and jitter constraints. You have the option
of either using custom electronics (discrete or a separate microcontroller)
to drive it,"

True.

What I do is programme the AC control procedure into a microcontroller of
my choice and communicate to the microcontroller using the UART serial and
that's it.


On Thu, Jan 9, 2014 at 2:31 PM, Ytai Ben-Tsvi <[email protected]> wrote:

> Driving the triac in sync with the AC signal in Java is going to be
> unfeasible because of latency and jitter constraints. You have the option
> of either using custom electronics (discrete or a separate microcontroller)
> to drive it, controlled by the IOIO via a PWM pin or something OR write
> custom firmware for the IOIO that does dimming.
> Otherwise, there might already be a module that does that - your use-case
> sounds common enough.
>
>
> On Wed, Jan 8, 2014 at 9:35 PM, n <[email protected]> wrote:
>
>> Arthur,
>>
>> For dimming ac you need to cut the phase at zero crossing For that you
>> need to use a opto driver like the 4n35 to ascertain the ac voltage wave
>> and then drive the triacs through opto triac drivers.
>> The coding is very easy if one understands the concept basics.
>>
>> For dimming 1000watts it would be a whole lot of amperage 1000/230vac
>> gives you A bit less than 4 amps
>>
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