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.
The relay can be powered with 24V at the gate, and the signal can be interfaced to transistor base that is connected as an open collector switch, this will switch this relay, it is a standerd MCD apps.
microcontroller drive triac
The triac is a current driven device; it will switch on (i.e. T1, T2) whenever enough current is driving its gate. The required amount of gate current can be determined through triacs datasheet; there are two types (according to gate drive) low gate current triacs...
Dear friends
He can use only one I/O line say PortB 0 or 4 to 7 where any can be assigned as interrupt line, the current will be very low and can be neglected, pull up any line with 10k and you will have .5 mA ... nothing to worry about ... I have tested that.
no need for FET's or any other...
equipment on/off circuit
If I understood you correctly then you are asking for a 200 ma switch that can be a part of standard low power membrane keyboard matrix normally used for hand held equipment.
This will not be practical … if it is a hand held and you will use a battery and MCU in it...
Re: RGB Led
The RGB LED’s is unit containing 3 LED’s Red, Green and blue that represent an element to a full color panels and simulated projection screen, with a proper matrix driver it can display colored images In a matrix = (X units , Y units).
Use this link for a Taiwan’s manufacture...
Re: How to measure 0-30V with ADC that has 5V maximum input
Hi every one …
Using the op amp to reference an ADC is only needed in 2 cases:
1- When the input signal is low level relative to ADC sensing range
Example the signal under test is from 0 to 200 mv while your selected ADC has a...
the importance of pull up resistance
Another rezone for using the pull up resistors that included in PIC chips is that you in some applications, for example, when a pin is used as input, and a switch is connected to it to pull it to ground (when pressed), you can debounce the switch using...
wiz-c rs485
I have tried Mikrobasic v2.2 and Proton IDE Compiler v3.1 for the same program (of course I had modified Mikrobasic commands to its equivalent commands in proton) … both program worked … but proton codes result was half sized that of Mikrobasic…!!!!
Form my point of view; if you...
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.
