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tnx.
Let me explain the flow,
1) at start falling ZC has detected-timer value loaded for 2 ms overflow interrupt & timer set ON - value at dimmerdelay[0]=0 updated (say dimmerspeed[0]=0, so (5-5=0) //dimmerdelay[0]=(DIMMER_MAX-dimmerspeed[0])<<1; -edge changed for next half cycle.
As the timer...
hi barry,
thx for reply..
Code is running ok. timer1 also working fine. i have modified the code for INT trigger and that too seems working for each half cycle. Pic attached.
Problems is that,
If i pass value '5' in variable "dimmerspeed[0]" getting both edge triggered pulse for triac and...
I’m making a dimmer for 230V AC/50Hz bulbs. I use PIC12F675 with 1M ohm(from Neutral of AC230V) ZX detection on external interrupt pin.
When it comes to zero cross most people say that when it detects a ZX you turn on a timer & when timer expires you fire the triac. & invert the ZX edge on...
Hi,
with the ckt attached, and operations are as descibed in code,
1) is it the way to change the EDGE interrupt for this dimmer application?
2) why flickering on pressing onoff btn and why not moving the firing delay on pressing incr & decr btn for the triac triggering pulse .
[moderator...
Hi,
My USB DSO model 6022BE and probe used 10X.
To comply the subject work, I have googled and understood that, need isolation trasformer(1:1, ie, 230v/230v) to protect the PC/DSO/DUT. And it also correct if use 230/12v for 2 nos in cascading connection, ie, Mains-230-12 --12-230v.
So, my...
No Improvement!!On startup LED1(connceted at GPIO-0) ONCE gets blink at ESP-01 module
Thks all of you..
According to you, I implemented with ckt and code as attached here, but NO Improvement is found.
const int BUTTON=2;
const int LED=0 ;
int BUTTONState=0;
void setup() {...
Hi,
On startup ESP-01 MODULE, the LED1 connected at PIN GPIO-0 gets ONCE blink even writing HIGH
digitalWrite(BUTTON,HIGH); // Have to write this pin high before entering the void loop otherwise this pin will be grounded
in void setup().
After that the code is working as expected (Button press...
hi,
The ckt will be use with 2hp/3hp/5hp motor(submersible pump) And pcb relay SPDT of 30A(T90 model).
How push button carry full load current?
I presume,
when GREEN Button pressed, contactor coil current flow path: S1-S2-c(at relay2)-NC(at relay2)-red button-finally at coil. And
Motor...
You may use another single pole relay..
R U asking for one more PCB Type relay OR to replace what i have already shown SPDT?
I have had google but not find particular model, in which my one can be replaced, would u please let me know about that particular model?
tnx
But starting with the relay is different, because it does not enable the starting capacitor.
what arrangement should i maintained to enable starting capacitor at start instead of using two pole relay...
tnx
Green and Red are NO and NC Contact Push Button Switch and Motor is at R-Y-B point
Hi,
sorry for ckt is not like ckt as it to be..But please treat the details as follows:
GREEN BOX:
C1 and C2 > NO contact of a push button switch, and
S1 and S2> is another NO contact of a push button switch...
Hi,
The ckt as as draw as attached, is a auto/manual control panel board for pump-motor and trying to configure to run with MCU control auto operation and manual (with start/stop button in board).
With the panel here i have included 2 nos relay: Relay-1, NO, parallel connected to START BUTTON...
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