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July 11, 2018 at 8:53 am in reply to: Alcohol detector and engine block of vehicals cause of alcohol #14855Ashutosh BhattParticipant
you can use MQ2 or MQ7 sensor it detects all types of gases.
interface gas sensor with arduino and then get the desire result
Ashutosh BhattParticipantmore details please…..
Ashutosh BhattParticipantwhy are you using for loop?
you should use while loop
you pole your keypad in while loop and when button is pressed display it on LCD
Ashutosh BhattParticipantI think you are not familier with basics of C programming!!!!!
if==adcData
this does not have any meaning
it must be
if (x == adcdata) // x can be any value
if statemet in C programming checks boolean condition as true or false
Ashutosh BhattParticipantyou have to post your problems, doubts, queries regarding your developments and projects
form your post, i dont get what is your project, what you want to do?
Ashutosh BhattParticipantpls post the query
Ashutosh BhattParticipantUSART is used to send and receive ASCII characters
character means 8 bit data.
how ever you can send whole sentance, or paragraph or even long text file it does not matter
Ashutosh BhattParticipanti think as per the accuracy you want
you have to multiple proximity (inductive or capacitive) sensors
you have to first make sectorize your area in to small square segments in matrix form
then in every cell you have to put one proximity sensor
finaly locate the brick position from output of two sensors (row-column)
Ashutosh BhattParticipantwhat you actually want to do? do you want to control firing angle of thyristor?
Ashutosh BhattParticipantservo motors are available online at cost of around 550 – 650 Rs
February 15, 2018 at 6:43 pm in reply to: interfacing RF wireless modules to ATMEGA16 microcontroller #14742Ashutosh BhattParticipantif you are talking about 434 MHz ASK RF modules then you are correct
you need HT12E and HT12D chips because they are RF encoder-decoder chips
how ever you can eliminate use of them by writing program for wireless RF protocol to send and receive data
arduino can help you here because it has virtualwire library
Ashutosh BhattParticipantultrasonic sensors have range upto 4 meter
for 300 meter you have to use RADAR gun
Ashutosh BhattParticipantin above program i dont see AT commands to set GSM modem into SMS receiving mode
you just first go through basics of GSM AT commands
Ashutosh BhattParticipantjust try to be specific on
what exactly you want to do
from your query we can not get anything
Ashutosh BhattParticipantAVR has USART and GSM works on serial protocol. so thats it.
GSM works on simple AT commands that you can send from AVR micro controller and get things done
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