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Hello again and thanks for the feedback
i see Brian point of indicating mains power back on , so yep i think if the transmitter is located at the mains part of the network so it does send "On" signal to the devices that should run on mains power while the absence of the control signal means the...
Thanks Brian , much appreciated
i will give look for ATS ,
an idea come on my mind to use some circuit i did while i was in my 4th year engineering ( long time ago ) that implement communication over mains , this will split the circuit into 2 parts , a control transmitter ( always on ) , to be...
Greetings all, and excuse me if this will be a long post
recently we are having alot of power outage, so most of ppl including family and friends got portable power generator or inverter to use mainly at night time for lighting and TV watching mainly, so power of the generation equipment is like...
Good day
1- you will not get AC from the output of this filter
2-the amplitude of the 240 VAC will decrease to 0.707 of its original amplitude at the cut off frequency .
getting DC from AC signal usually involve rectifying then passing through low pass filter
if you have something specific...
Thanks for the quick response , i will check the link and other info available
for the second question , is my assumption correct ?
thanks again
Regards
Good day all
im working on a control circuit that i plan to use PIC16F887 as controller , i plan to use all possible I/Os (35 +1 RE3 as input as well ), and im using MikroC as IDE, from my humble understanding , using LVP will make me lose one pin , is that correct ? and will i be able to use...
Hello Kilwan
have you tried connecting the load resistor R3 to the output via a decoupling capacitor ? most probably your circuit is drawing much Quiescent current
also test voltage drop on both diodes and BE of the transistors , the idea of diode biasing is that those voltage drops are...
Good day Rich
yes it does , that was meant to be bulb OK LED
the LED circuit above can be used so LED lit when you have blown bulb , by connecting the LED and the resistor R1 to the collector of the optocoupler instead of the Emitter but however the LED then will lit when you get a call as well...
Re: mikroC pic micro controller programming help
Good day
i think you should consider the comments for the format :
//' Each USART RX Byte:
//' Servo ID = Upper 4 bits (0 to 5) 6 Servos
//' Servo Position = Lower 4 bits (0 to 15) 16 Positions
so...
Hello ,
looks like the 12V input is the control input of the board , so i believe your assumption is correct
and in this case you can control with with a uC by controlling a relay that connect 12 VDC
Regards
Hello again
i was thinking of a way to simplify the input module while still being able to deal with the different normal state of the switches (NC/NO) without the need of extra components , I've come out with the idea of using the internal EEPROM to store the default (normal ) status of the...
Hello ,
it seems to me like the switching spikes are going back through the 12VDC line in some way ( maybe through mains ), however if you 5v regulator is 7805 series , can you try using 0.33uf capacitor on the 12 V side and 0.1uf on the 5V side of the regulator (as per the data sheet ) and...
Good day
i just check the datasheet when i seen your post , meanwhile the minimum High level input of SN75176 can be 2 volts (works with 3.3 v) , if you want to run the 18F4620 on 3.3V . the input cannot exceed 3.3 V + 0.3 V , this what the data sheet says
hope this helps
Regards
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