PC Parallel port to led
I am playing with a project to display statuses using the computer parallel port and 5v leds. First let me say that I am a programmer and weak at electronics. I have a number of demo programs that read...
View Articlesuggest me an development board that supports linux,android,rtos porting ??
Hai guys , i want to purchase a development board to port linux , android and rtos . can anyone of you suggest me the right one ?? after surfing through the internet i found S3C2440 suits my...
View ArticleHow is a mouse detected as a mouse?
Sorry if this question is too basic. I'm a beginner in the field of electronics. I was building this 5-minute yoke (since I'm into flight simulators) and I started wondering why a joystick is detected...
View ArticleMSP430 or similar serial input
Hi, I want to build a small data logger which can accept either an RS232 or RS485 input. I want to use a uC rather than buy an existing datalogger and build up a circuit myself. Before I even look into...
View ArticleBeginners guide to using FPGAs
Hi there, Following on from the positive response to my blog post about adding an FPGA to microcontroller projects I received a request to write an beginners guide to FPGAs which I have now posted. You...
View Articlearduino ide probs
Hello friends thank you for giving me your precious time actually recently I got my computer formated and after formatting computer my ide is not working properly it is not able to even verify few...
View ArticleRearranging an array in the arduino
I am taking an array input called attempt[] from the user then according to the value of attempt I rearrange another array called user[] but the problem here is that I am able to do this only one time...
View ArticleArduino Pro-Mini 3.3V
Hi everyone, and thank you for reading my post. I'm wanting to use an Arduino Pro-Mini in a project which is going to be powered by 2 x li-ion cells, so I'm going to be powering it from the RAW pin....
View ArticleWater Level Sensor
Hi, all i found this sensor in a steam generator but can't find its name and manufacture or type. pl help me what it called pl find the sensor in attachement,
View ArticleKeypad interfacing to PIC contoller
Dear all, Hi to all, My query is, recently i tried to interface 4x4 matrix keypad to the PIC16f877a controller and i found that my keypad buttons are getting automatically pressed whenever i make...
View ArticleArduino - trying to change a variable at one point in a program to be used by...
Hi there, I'm trying to make a circuit and arduino program to simulate a lift. I've got 4 LEDs which represent the 4 floors and 4 push buttons which represent the lift call buttons on each floor. Below...
View ArticleControl stepper motor with PIC, maximum output frequency of PIC
Dear all, I would like to control a stepper motor using PIC18F. I have a driver circuit for this motor. The driver circuit allows me to give an input pulse to control the motor. To control the speed of...
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help me using Serial Peripheral Interface with AVR..
i have some trouble to interface ISD1760PY (soundrecorder IC) with AVR through SPI communication.. i've do some search in google to find some literature that provide information about SPI interfacing.....
View ArticleADC help configuring interrupt and triggering STM32f4
Hello, I want to calculate distances using ultrasounds. I configured correctly an ultrasound transmitter to make pulses of 40kHz. Now I'm trying to configure STM32f4 to read data from the ultrasound...
View ArticleInterrupt Handling
Hi, Suppose if i am transmitting a number of CAN messages both cyclic and event. Should I do this by setting the interrupt and leave it to the controller to transmit the messages. Does this method not...
View ArticleHow to work with XC3S500E-4
Hi I work with XC3S500E-4 (spartan3e) and Is there multiplier block? And how can I use it?
View Articlelcd display
hello I neeeeed a program of a lcd display on pic16f877 with percentage for my project finder satellite meter please help me the rather early posssible thank you
View ArticleWhat is the diode going to?
Does anyone know what the diode is connected to at the top left hand corner?? The datasheet recommends this method of connection to protect the μcu, which makes sense with high voltage programming...
View ArticleMicrocomputer Information...
Hi everybody! ...I'm new to this forum, but the community was big and looked friendly so I decided to hop aboard. Also, I'm trying to get a project started and need some info. (Note: I'm not what you...
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