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I have a Data set with about 12500 values.
I need to findout how many times each of the different values in column Y occurs and display it as a graph.
I have attached a short example with 20 data lines, to explain this.
I am using a Data Analysis software, which has VBA programming...
he Base has a 2.2K resistor. So, the working current is cut to it.
the collector was isolated from the circuit and found to have no voltage.
similarly, the output from the LED side was measured and found to have the same 2.4V.
I think it is somesort of a LED drop voltage that is visible at the...
I have a circuit wherein the supply is from a regulated 5V.
circuit is as in the attachment.
the mystery for me is how there is a voltage of 2.23V at the transistor collector, when the transistor is turned off? How would the circuit close? what am i missing out in my selection?
Hai,
I have a circuit for a constant current source capable of driving upto 400mA at 5V. Can anyone explain how i should calculate each of the values in the circuit?
circuit attacehd.
lcd basics
Hello friends,
I request help in
a) undersstanding Dot-Matrix LCDs &
b) how we can communicate the driver S1D15714 through serial Port to drive the LCD
c) How are the characters actually formed?
This may seem very much on the Basic Level, but please help if youcan
Hi, I am urgently in need of some help in understanding the following,
a) How does a PC charge a mobile phone when connected using the USB Data Cable?
b) What is the actual signal to and from the PC to the mobile phone?
c) Can the same be given through the Serial ports of an ordinary 8-bit...
usb port mobile charger
Dear all,
I tried giving pull-up and pull-down but it did not work...
On checking the Datacable and the Charger for the mobile, i found that the + & - in the charger and in the USB are at different locations. But the mobile charges fine through the datacable, when use...
usb port charges
Than you so much... Wil try out these ideas and get back to you. we tried connecting the D+ and D- to ground , but they did not work. will let you know in a day or two
mobile charger for bike circuit
thank you so much for your reply, but my problem is that I have a USB 2.0 to mini USB Cable and not a charger. So, is there any way that we can use it directly through a regulated 5V?
bike mobile charger circuit
Hai all,
I am new to this and would like you to clarify my doubt. Here goes...
I need to provide a charger from a Bike's Battery (12V) to charge a mobile phone using the phone's USB.
My problem is that, Motorola Phones do not enter charging mode at all. My MP3...
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