atmega8+rs232+sim800
i have an atmega8 and a sim800. now i send some command to sim800 module and want to receive the data at terminal. note i dnt want to send command from terminal but from atmega8. but recieve at...
View ArticleAVR acts weirdly when a 12 V solenoid valve is connected to it with a relay
Hi , I'm doing this soil moisture sensing project with a solenoid valve to automate the watering using an atmega32A microcontroller . I'm using external power pack to give 12 V to the solenoid valve...
View ArticleSelection of a microcontroller for a solar charger
Hi guys, I'm a power engineer, and a beginner in the embedded world. Now I want to design a microcontroller based mppt charger, and a little confused of the mcu's variety on the market. In order to be...
View Articlerdm6300 + atmega8 cannot receive rfid data
Code (C): #include <avr/io.h> #include <avr/interrupt.h> #include <util/delay.h> #include <string.h> Â #define buffer_size 64 Â void usart_init(unsigned int value); void...
View ArticleMy select button doesn't work in proteus and i don't find a way to solve it.
Hi i'm trying to make a keypad with 3 button, minus,plus and select. When you want a specific temperature, inc/dec and select one which is in variable temp_set. i attached the circuit and the code, and...
View ArticleHome built PickIt2 not behaving normally.
Hi All, I am having a strange problem with a homebuilt PickIt2. It is wired just as MicroChip designed it, but I substituted a few parts to facilitate thru hole construction. I subbed a BS250P P...
View ArticleSetting Up Arduino as ISP in Atmel Studio
Hi all, I am having difficulty setting up Atmel Studio to use my Arduino UNO to program an Atmega32. I am not trying to reprogram the Arduino itself, rather I am trying to use the ArduinoISP sketch to...
View ArticleHow to erase current program from Arduino
I currently uploaded a small program on my arduino but now I want to erase it and get it back as if it were new. Is it possible? If so then how to do it?
View Articlemultiple task in main function
Hello everyone I want to write C program to do following task. first blink LED, If LED is blinking than do task for motor start, forward , backword , stop if motor is working , display message '' motor...
View ArticleSelecting a 2kHD-video out capable SOM
Hi, In an upcoming project I need to drive a high definition screen (2560x1440), and the frame rate needs to be at least 60Hz. I looked around for a while and found a couple of interesting chips:...
View ArticleSPI and I2C together
Hi Friends, I am working on PIC16LF1939. I am using spi to communicate with another microcontroller. I have to use I2c protocol to glow the LED's. As PIC16LF1939 has only one MSSP how can we achieve...
View Articlemsp430g2333 datasheet confusion - timer A
Hi guys I am looking at this mcu(msp430g2333), the datasheet on the first pager says it has 2 16-bit Timer_A. http://www.ti.com/lit/ds/symlink/msp430g2333.pdf But when I look at the MSP430x2xx family...
View ArticleHow to test a 440vac capacitor?
I have a small micro-controller board that has analog output and can operate external low-voltage devices. I am looking to have a replacement harness of some type that will connect to...
View Articlebasics of 8051 UART module
Hi I was reading about Uart. Many micro-controllers have internal UART's, to communicate with external devices. 8051 have internal UART (universal asynchronous receiver/transmitter). It can both...
View ArticleQuestion on microcontroler's output data and power
Hi, I would like to know the answer to the following 2 questions. I have this microcontroller (http://pdf.datasheetcatalog.com/datasheet2/e/0lrp9fdj0zyd6e2k2e8ej8lkzupy.pdf). 1-I would also like to...
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Absolute Beginner with Microcontrollers
Hi guys: I am an engineering student now it is summer vacations and i want to learn about Micro controllers. Can any body guide me how to get started with Micro controllers and its programming. I am...
View ArticleCurved Image Sensor
I have never interfaced a camera other than plug and play, but this sounds pretty interesting....considering drones and auto-cars....let alone smartphones....
View ArticleDMX project for controlling flexible LED strip.
Hello, I have made a project for controlling RGB flexible LED strip. It's a three channel DMX controller that i want to put to give some color to my business. It uses a PIC16F628A with a code that i...
View Articlemsp430g2333 datasheet question, Information Memory
Hi guys I need to store 3 bytes of data into the information memory of a msp430g2333. I have went through the datasheet and family user's guild. I can only find some information about information...
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