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how to connect 7 segment led to microcontroller
Yiu should put resistors with resistance aproximatelly 6R7 between outputs A...G and pins of microcontroller.
seven segment display 8051
There are several ways of solutions this problem:
1. If the light of your LEDs are large enough you can decrease current thru them. It is possible by increasing resistance of resistors or by periodic power off all indicators for some time. In the second case if the...
cp2200 silicon labs
My FTP server for C8051F340+CP2200 generated by TCP-IP Configuration Wizard work correctly ONLY for first connection. Next disconnection/connection does not provide access to FTP server (FTP client begin connection and wait). MCU stops after executing function...
7 segment connect to pnp transistor
Yes
For switch off all indicators you should output on P2 XXXX0000 (X-any bit, 0 or 1);
For switch on 1-st indicator - P2=XXXX0001;
For switch on 2-nd indicator - P2=XXXX0010;
For switch on 3-rd indicator - P2=XXXX0100;
For switch on 4-th indicator -...
avr with 7 segment indicator led schematic
I prefer attached circuit based on bipolar transistors.
You will nead 8 switches with NPN transistors for current ~1A and 7 switches with PNP transistors for current ~150 mA.
application of 8051
For connecting several indicators together you should connect all the same name segments together (A to A, B to B, e.t.c.) and connect them (via current switch) to one port of MC (for example A to P1.0, B - P1.1, ... G - P1.6). Each pins DIG1 and DIG 2 should be connected...
How it is possible to define pins of MC, which provide connection to CP220X in TCP-IP Configuration Wizard from Silabs (or in which source file generated by this wizard)
avr460
I develop microcontroller-based web server and my Internet review show that the best documented solution is reference design "AVR460: Embedded Web Server". Unfortunately the source code of this reference design is not allowable on-line.
Can anybody send me these source codes or put it...
simple dc motor controller
...but what about the resistors?
Resistors depends of shut-off voltage of your transistor. In the most cases it is possible to find recomended cirquits for selected transistor and put the same resistors.
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