Search found 62 matches

yes my problem is poor LCD contrast, I change
the r=3Megohm value because the data sheet
dont specify what to do,, where did say that instead
it I should change the value capacitor conected in
CC1 ...

Thank you Humberto, but the info don't match with the
HT1620. There is any way to paste the
circuit in the post ? I would like post the schematic,
may be some one with experience over lcd drivers
...

Some one worked with ht162x??
My circuit board is like the showed in
HT1620 datasheet, page 11 rev 1.20
but the Vlcd is not enought with the
the 3Meg resistor, using a 680K
resistor (instead 3Me ...

Sorry, the second coil

The tester leads are over the first coil not the generator Smile

I've also a fluke 87 serie IV, using it in the same place
and, with the same tester leads, over 100k resistor
it have SNR almost of 60 dB better than my APPA-207,

I usually had to calibrate a pic ...

There is a bit of a language barrier here but I think you are describing the following:

Resistance range - drifting
AC voltage mode - noise pickup
any mode, clock injection via meter leads.
...

I bought a multimeter (40.000 counts true RMS) a year ago,
at the very beging I notice a large fluctuation over ohm
range, 50 counts, large nosie lecture over a 100K resistor (AC mnode),
200mV , an ...

From CCs manual:

#ROM

address is a ROM word address, list is a list of words separated by commas

Purpose:
Allows the insertion of data into the .HEX file.
In particular, this may be used ...

it's a flow computer, the signal
may come from a few diferents
types of sensors: TTL/CMOS, HALL,
COIL, take a look at:

http://www.fluidwell.com/f010.html?fseries

I'm currenty using a capture module to measure
frecuency (10Mhz clock), the resolution requiered
is 0.1Hz, range 1.0 - 999.9 Hz --> 5 digits

#INT_TIMER3
void tmr3_isr()
{
ro ...

Someone know how to improve this:

(clock = 10 mhz, pulseTicks = width pulse,
rateFactor = 1 * 2 500 000
or
rateFactor = 60 * 2 500 000
or
rateFactor = 3600 * 2 500 000
or
rateFactor = 86 ...

yes, you are right, sorry

sorry 0.4 ms

2 * 0.0004 + 0.1 * 0.996 = 0.1004 Ampere per second

2 * 0.004 + 0.1 * 0.996 = 0.1076 Ampere per second