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v/i curve tracer
At the beginning, I thought of making two channels running simultaneously, however after testing I found that any voltage source with a resistor as current limiter will be enough, I tried testing BJT, MOSFET, OPTO, all ok
in the design I have add a demux (relays) stage to test...
how to build a curve tracer
I'm building VI-Curve tracer, using PIC16f877 and DAC mcp4822 from microchip
and interfaced to PC through serial port. The host software developed in Delphi. It is running at the moment, but not yet finalized.
If I find interest, I’ll post the details, so we can...
Would you suggest a list of the required tools and instruments for quick troubleshooting of wide range of CPU and I/O cards , specially the ones using the old Intel and Motorola zelog, processors like 80186,188.8088,Z80...provided that manuals are not available and cards are not attached to the...
pic project r/c servo
DC servo motor uses closed loop control tech. to achieve prcise control over the output position and speed of the motor
while for R/C servo, a pulse width technique is used to control the position of the servos(normaly for robotics and toys).
building rf anechoic
making an anechoic chamber is not easy thing, it is realy expensive as all the products in the RF range.
my company has one for 3 m test for precompliance testing, it is very expensive, you need to decide first what are the frequency range you are targeting.
there are few...
there is a series of articles in Elektor 2005 about using Delphi to build scope and signal gen using sound card, and explain how to use Windows APIs (through Delphi)to access the sound card
hope it helps....
Wa Alicom Salam
for ICSP you need only 5 volts not 14 v
I was trying to make use of my AVR In circuit serial programmer to program PICs that have ISP capapilities by using other software
The problem I don't have much knowledge about the programmer hardware&firmware
is there any way by which Atmel® AVR ISP In-System Programmer can be used to program Pics mcu
can it be used for example "with icprog" as jtag programmer?
onemilimeter wrote
if the frequence goes below 50 hz the lights and equipments will start to flicker since the voltage will vary from 0 to say 220 v fewer times in a second
notice that human eye will notice flickering if it is below 16hz also the transofmer size will icrease with lower freq...
In another words I want tp order
56 pin SOP pitch .5, 18.5 mm
32 pin PLCC socket
44 pin PLCC socket
16 pin SOP socket
40 Qfp socket
will they be ok for covering the most popular MCUs and EEPROMs?
I'm ordering All-11p3 Universal Programmer and I want to order some optional adaptors, would you advice me on five adaptors that covers most of the common MCUs and EEPROMs packages. I appreciate your participation.
Note: the programmer is originally with 40 DIP socket
Re: use ur old computer CDdrive to enjoy audio CDs in your
Dear Bazam, I appreciate ur response and the info,
but I'd like to say That it has been running for several months without a problem , except operating mp3 CDs
use ur psu to power other things
I'd like to share this with you
I used an old computer cddrive with some simple modifications to make my car cassete operate CDs, and here are the details:
computer cddrive requires two voltages supplies one is +5v , +12v
your car has only 12v , to get the +5 u...
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