selvakumar
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GSM modem sim 900

Started this discussion. Last reply by keith vasilakes Feb 18, 2013. 2 Replies

please give some basic basic ideas about how to interface GSM modem sim900 with arduino leonardo?Continue

weather sensors

Started this discussion. Last reply by Jonathan Dean Feb 4, 2013. 3 Replies

which type of weather sensor suitable for arduino leonardo?weather parameters like temperature ,humidity and also give idea about how to interface that type of sensors with Leonardo..Continue

 

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keith vasilakes replied to selvakumar's discussion GSM modem sim 900
"1. read the docs 2. while not working 2a. try really hard 2b. ask a specific question 2c. try really hard to understand and implement"
Feb 18, 2013
Jonathan Dean replied to selvakumar's discussion weather sensors
"Adafruit Tutorial on DHT-11 and DHT-22 (has example code and wiring diagram), and Arduino Library for communicating with DHT-22."
Feb 4, 2013
selvakumar replied to selvakumar's discussion GSM modem sim 900
"please any one suggest some tutorial how to interface arduino with GSM MODEM SIM900..."
Feb 1, 2013
selvakumar replied to selvakumar's discussion LM 35 temperature sensor in the group Arduino
"thank u sir.i will check and tell the result."
Feb 1, 2013
Kathy Moseler replied to selvakumar's discussion LM 35 temperature sensor in the group Arduino
"It's good that you are using a proven circuit configuration.  This helps narrow down the possibilities.  It would be helpful if you stated the temperature readings you are getting over time.  Example, at power on, one second…"
Jan 31, 2013
selvakumar posted a discussion

GSM modem sim 900

please give some basic basic ideas about how to interface GSM modem sim900 with arduino leonardo?See More
Jan 31, 2013
selvakumar commented on GarageLab's blog post Tutorial: How to use a barometric pressure sensor with Arduino
"please explain briefly how to write this code"
Jan 31, 2013
selvakumar replied to selvakumar's discussion LM 35 temperature sensor in the group Arduino
"i use the detail given in the following attached file...the temperature value not stable..and also IC heated..what is the reason? any other interface circuit method available"
Jan 31, 2013
Kathy Moseler replied to selvakumar's discussion LM 35 temperature sensor in the group Arduino
"Hi, I attached the datasheet because I am not sure if you have it.  Read it over if you haven't already. It is probably measuring the temperature correctly so you have to figure out what could be making the temperature go up.  It…"
Jan 28, 2013
selvakumar added a discussion to the group Arduino
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LM 35 temperature sensor

I inetrface LM35 with arduino leonardo....intially the correct value was sensed by LM35 then the IC pre heated and temperature value increase gradually.what can i do ,please any one help me..See More
Jan 28, 2013
selvakumar replied to selvakumar's discussion weather sensors
"how to interface DHT-22 to arduino Leonardo?"
Jan 23, 2013
Christine C replied to selvakumar's discussion weather sensors
"DHT-22 available on ebay and other places is a one-wire Temperature and humidity sensor and communicates via a one-wire interface. Adafruit has libraries available for it."
Jan 23, 2013
selvakumar posted a discussion

weather sensors

which type of weather sensor suitable for arduino leonardo?weather parameters like temperature ,humidity and also give idea about how to interface that type of sensors with Leonardo..See More
Jan 19, 2013
Jonathan Dean replied to selvakumar's discussion arduino leonardo in the group Arduino
"If you get lights and blocks then the LCD is working and not getting any data.  It looks like the JHD uses the HD44780 chipset, so it should work with the LiquidCrystal library.  I'd check your wiring, or redo it from scratch.…"
Jan 7, 2013
Kathy Moseler replied to selvakumar's discussion arduino leonardo in the group Arduino
"Hi, I think this thread might help you.  I didn't read it, but it sounds like a similar problem. http://arduino.cc/forum/index.php/topic,26527.0.html"
Jan 7, 2013
selvakumar replied to selvakumar's discussion arduino leonardo in the group Arduino
"ya in my LCD BACKGROUND LIGHTS ON  and simply black colour blocks come.i use 16*2 JHD 162A  .this LCD is compatible with HD44780 ? "
Jan 6, 2013

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