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AltSense Trainers' Shield

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AltSense Trainers' Shield              Contents  Overview  Power Usage  Controlling LEDs  Interfacing Relays  Interfacing Light Sensor/LDR  Interfacing Temperature Sensor/LM35  Interfacing Bluetooth/HC05  Interfacing WiFi Module/ESP8266 Overview          This trainer shield’s purpose is to get self trained on Internet of Things(IOT) and also to learn  to control LEDs, Home Appliances with Wi-Fi and Bluetooth. 3 LEDs are connected to digital pins 9,10 &11 of Arduino. ESP8266’s Tx and Rx pins are connected to digital Pins 4 and 5  of Arduino respectively. HC-05’s Tx and Rx are connected to digital pins 6 and 7 of Arduino respectively. Relays are connected to digital pins 2 and 3 of Arduino. Power Usage Normally when attached with Arduino we get 5V supplied to LDR, LM35, Bluetooth and 3.3V to Wi-Fi module. Since we have used 12V relays, a 12V adapter is needed to trigger the relays. Controlling LEDs