A device which includes a central processing unit (CPU), memory, and (generally) an assortment of I/O peripherals (UART, ADC, DAC, general-purpose I/O, I2C, etc.) in a tightly-coupled standalone package.
0
votes
0answers
25 views
Communication between micro controllers using GPIOs
I have an ac motor speed controller which has 2 boards containing pic16f676 in one and 16f72 in other. 16f676 controlling the motor when it get signals from 16f72. i use 2 gpio to communicate between ...
0
votes
1answer
49 views
What there was before Arduino?
I'm really a fun of Arduino project, it's easy and it has a great community. But i am aware that is has no technological innovation, it is only a wrapper on a (normal?) microchip, if i have understand ...
2
votes
1answer
33 views
How can I control 8 LEDs with a timing delay with only one microcontroller (PIC12) written in Assembly?
I can have 5 I/O pins enabled. I'm just confused on how to control them individually.
-2
votes
0answers
32 views
Great Resources for Tablet Designing [closed]
What are some great companies for Application processors(tablet processors), based on price?
What Quad Core chips are there.
I'm having a hard time finding any tablet processor price except for TI's ...
-3
votes
1answer
35 views
Best way to Interface with PC/MAC/iDevices/Smartphones [closed]
What do you think is the best way to communicate a hardware with PC, MACs, iDevices and Smartphones (with Android, Windows Mobile, etc.) ?
We need to make a voice chat (like VOIP) and also exchange ...
7
votes
3answers
182 views
Switching from PIC to AVR [closed]
I have worked with PIC16 and PIC18s for over three years now and would like to get to know AVR as well. I have no specific project in mind, but would like to try around with the different ...
-2
votes
1answer
38 views
How to search date wise in flash memory using microcontroller?
I am developing a data logger in which I am using 8 MB of flash memory to store the sensor data with date and time. I am using RF interface to transfer that data to PC. I am planning to have PC ...
2
votes
1answer
57 views
Bit Banging UART
My full code is located here.
Basically, I'm transmitting to an Arduino, and I'm not receiving the correct value (you'll notice I'm trying to send d'22'). Here's the method where I actually bit bang ...
-4
votes
0answers
36 views
learning embedded system [closed]
can someone please assist me regarding :
1 The topics that i should read in electronics in order to learn designing schematics for embedded systems as well PC boards.
2 and reference book that i ...
2
votes
1answer
94 views
Arduino LED brightness switching using pushbutton
I'm trying to switch between 4 different brightness of an LED using an Arduino Uno. I've used analogWrite and not digitalWrite with PWM. The problem i'm facing is that the brightness does not switch ...
-7
votes
0answers
35 views
Reference for talking cash register [closed]
I have read your Timer.asm code for the nus module ee3208 however there are some parts of the code that I do not understand such as
Enable serial interrupts
...
0
votes
1answer
51 views
How to use the PIC16F628A's PORTA,4-7 as inputs?
I'm working on a countdown timer and I want to use the MSN of PortA for my switches.
I'm using MPLAB. I can't use C to program the PIC because the collage taught us to program in decimal, and they ...
5
votes
1answer
143 views
Serial Communication over 1 Pin?
Okay guys, I'm in a bit of a pickle here. I have the following circuit:
As you can see, pin 3 is my only output. I've actually already had this board printed, so there's not much room for ...
0
votes
0answers
35 views
Interfacing with ROM chip(C, ASM, & Timing Diagrams)
I am attempting to interface with the following ROM chip via my mc9s12 microcontroller:
http://www.alldatasheet.com/datasheet-pdf/pdf/55460/AMD/AM29F040B.html
I have several functions written in C, ...
3
votes
4answers
79 views
What happens to other component's power consumption, when uC is switched to low-power mode
Currently, I am using a uC (Atmel ATtiny85-PU20), which will eventually run battery powered, and I am trying to reduce power consumption of entire circuit to maximise time between battery changes. ...
