Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
Tnx
betwixt:
If it is so, then why after removing the zero crossing from P_DC the ckt is start working.
Are you asking a 1M resistor directly from LIVE to INT pin and a small-signal schottky diode (ie, 1N4148) from VDD to INT pin.- if wrong correct please....
Also Tnx
FvM
I think so...
Hi All,
Target-PIC Mcu based IR REMOTE CONTROL To operate relay based AC LOAD. Section wise component as follows:
1) TRANSMITTER: IR REMOTE NEC protocal,
2) RECEIVER: TSOP1738,
3) ZERO CROSS: Transistor, resistor, ceramic capacitor based.
4) MCU: PIC 16F628A
5) POSER SUPPLY: TRANSFORMER 230/12V...
What may be the possible cause for RTC1307 Module(Purchased from Market) running fast approximately 1sec in 3hrs.
Let me elaborate what I have done,
My code is in xc8 and internal osc configured in 8mhz at mcu16f887.
Display is 7segments, data being extracted from RTC1307 (MODULE) with I2C...
Along with subject and ckt attached,
why getting 19.5v(more than tranformer sec rating) insted of 15v.
The measurement of volt as follows with digital meter:
The tr sec o/p-> 15.96v,
o/p-1 ->>5.2v
o/p-2 ->>19.5v
tnx
Can u explain the fact behind it and do i get ~15v.
tnx for reply.
i have tested with same code and same ckt in proteus except (removing) bc557, ie, directly connecting all 4 control pins between mcu & digit, there was no problebs working correctly.
But If add bc557, as ckt attached getting NOTHING ELSE EXCEPT 0 and 8(ie, 0 0 0 0 and 8 8 8 8)...
Could u please let me know what is the issue for not getting expected o/p from 4 digit 7seg in XC8 16F877A uC. The Ckt diag. and Code is here.
I am getting as o/p in 7seg only 0 and 8 but all control and data pins in mcu portion is blinking but all the control pins(1,2,3,4) under 7seg portion...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
