Introduction: IoT Project: Temperature Logger Using Arduino, Lm35, Sim900 and Thingspeak
In this project, we will upload temperature using lm3k on thingspeak channel using arduino and gsm module.
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Step 1: Stuff Required:
- Arduino uno
- Gsm module
- Jumper wires
- Account on thikspeak
- 12 volt adapter for powering gsm module
Step 2: Connections
Make connections as given in the diagram. Connect Tx of GSM module to pin number 7 of arduino board and Rx of of GSM module to pin number 8 of arduino uno and ground should be common between these two.
Output of LM35 should be connected to A0 of arduino board.
Arduino Uno GSM module LM35
Pin no. 7 Tx
Pin no. 8 Rx
Pin no. A0 Output of Lm35
Step 3: Uploading the Code
Download the code from here:
Click here to download
The code is quite simple. You need to change apn as per your service provider. Also, you need to change the api key for thingspeak channel.
Happy learning !!