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53 Threads found on atmega8 Circuit
I design a circuit of Modbus and GSM with two different regulators. Modbus need voltage >4.8 and GSM need 4 volt so i used 7805 (1Amp) with Max485 and atmega8 converter and LM2596 (3Amps) Adjustable regulator to power up GSM board . and input supply is 12V/2A adapter. when i use this circuit to read data from inverter and send data using (...)
hello,i wanted to interface 2 atmega8 ic through SPI and i wrote theise code as Master and Slave but when i execute the code in circuit in proteus app it wrote "Testing" in lcd but then nothing and the transfer cant complete wnd the code freezing in the code line: while(! (SPSR &(1<
Hi I designed a circuit with atmega8 for measuring a voltage and then if over voltage is occured a 12V relay will be on. but when the relay is on, the measured voltage reduced. I use LM326-2.5 as reference voltage on Aref pin. what is the problem? Is it related to my PCB design? the schematic is below. Thanks.
i made a system for generator which starts with RF remote and stops the generator automatically, the system is made with atmega8 and an LCD is also connected which shows Voltage and Frequency of generator. the problem i m facing is that when the circuit is near the generator the voltage varies rapidly and shows wrong frequency, and if same (...)
I made a simple circuit to interface 16X2 LCD with atmega8 micro-controller.Everything seems to work fine but when i tried to display a text in second line of the LCD, i get nothing.The text doesn't get displayed. I believe I've send proper command and all but still i don't get anything displayed in the second line. Then i tried to display a single
@allset87 He is using atmega8.
I am trying to measure 440V AC with atmega8. I have used transformer 440V-5V and bridge ractifire. Now I am trying to use voltage divider to convert it to 2.56V as my refrence volatge is 2.56V but I am unable to do so please help to design hardware for it.
this are not same like you but similar and might help you
hello to all. i want to make pal signal with avr atmega8 i use resistance circuit for make 2bit adc-(black&wite-color)- i have a problem???! whene i write many delays for show black and wite colors on my tv scren i cant see any thing on my screan:bang::bang::bang::bang: i think it occur because in this mod we have hight ferequanc
I have been designing atmega 8 based usb to uart conversion using v usb and avr cdc 232. The whole circuit seems ok but its not detected in by the computer. It just says USB device not recognized. Here's the description of the project( ).Any help please I us
Hi all, I am working on AC dimmer circuit , for that i have have interfaced the Zero Cross Detection circuit with ATmega16 INT0 pin. INT0 is configured as a rising edge. here i am attaching image which shows the working of Zero cross detection is good. but when i interface its output with ATmega INT0 pin, the Zero Cross Pulsed gets down and nothin
SALAM i am try to make USB asp for atmega32 using atmega8 circuit is here but Windows 8 usb not recognized i troblshoot frm here but thr problem is not solved
HELLO guys i want to make wireless burglar alarm system using PIR sensor . this system consist following part : 1. Transmitter with PIR sensor Transmitter circuit consist atmega8 and PIR sensor and 434Mhz Transmitter. When PIR sensor detect any human motion it send the signal to receiver side. 2 . Receiver with Hoo
i have a circuit that uses pwm of atmega 8 and the power bridge of l298n ,to power a dc motor but when i connect the vs voltage of l298n ,the micro stops working i used even used seperete power supplys but the same result any help would be appreciated
hi, I have a atmega8 ic and I have planned to build a serial interfacing circuit for it with max232 ic and rs232 cable. the thing that I want to know is, what is software that I can use to transfer my programme(hex file) from computer to the microcontroller using rs232 and max232 interfacing.
Hello, I want to make a device which senses three phase R, Y, B voltages using avr atmega8. What kind of external sensing circuit should i make? I also want to control the phases of that, as like single phase preventing. Give me a basic ideas to make it.
so, this is it o
Good morning everyone, I'm riding a USB joystick and am not able to exchange for the D + D-is that the code always gives error. 94594 94593
I have some problems with my little project. I have made zero crossing detector circuit work well and use atmega8 to create a square ware base on the output of this circuit like in the picture below. However when i try to pass the signal to light control block ( with moc3021) errors appeared. Please help me! My deadline is comming. I (...)
hi all how interfacing with ir remote in operating with atmega8 controller and explain the circuit diagram i can try the read the ir remote but not understanding Can you give more details what you need? You want IR remote control using atmega8 uC ? Existing IR remote controller such as TV,DVD,...

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