Dual-Scale Thermometer (Celsius + Fahrenheit) – Accurate Temperature Measurement Tool

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  Laser Diode 3V 5mW 650mm

  ₨ 100 Original price was: ₨ 100.₨ 70Current price is: ₨ 70.

  The Laser Diode 3V 5mW 650nm emits a high-precision red laser beam perfect for Arduino, IoT, robotics, and DIY projects. Operating at 3V with 5mW of output power, it is ideal for laser pointers, laser communication, and distance sensing applications. Compact and efficient, this laser diode offers low current draw, making it a great fit for embedded systems.

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  DHT11 Temperature Humidity Sensor Module for Arduino

  ₨ 300 Original price was: ₨ 300.₨ 200Current price is: ₨ 200.

  The DHT11 is a digital temperature and humidity sensor. DHT11 sensor has a built-in NTC thermistor to measure humidity and a capacitive humidity sensor to measure temperature.

  Digital temperature and humidity sensor DHT11 is a low-cost, easy-to-use sensor that is commonly used in a variety of applications. DHT11 sensor has a single data pin that is used to communicate with the host microcontroller. The sensor uses a one-wire protocol, which makes it easy to interface with the microcontroller. DHT11 sensor can be read by the microcontroller using a simple polling method.

  The DHT11 sensor has a temperature range of 0°C to 50°C and a humidity range of 20% to 90%. The sensor has an accuracy of ±2°C and ±5%RH. The DHT11 sensor is a reliable and accurate sensor that is a good choice for many applications.

  It is important to note that the DHT11 not designed to be powered by a higher voltage than 5.5V, as this could damage the sensor. The DHT11 is a digital temperature and humidity sensor that can  power by a voltage range of 3.3V to 5.5V. The recommended input voltage for the DHT11 is 5V.

  The DHT11 has a maximum current draw of 2.5mA, which is relatively low. This means that the DHT11 can power by a small battery or a USB power supply. The DHT11 has a data pin that used to communicate with the host microcontroller. The data pin pulled up to 5V by a 10K resistor. This means that the microcontroller can read the data from the DHT11 without having to provide any additional power to the sensor.
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  5mm Light Dependent Resistor LDR Sensor

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  LM35DZ Temperature Sensors

  ₨ 300 Original price was: ₨ 300.₨ 180Current price is: ₨ 180.

  Original LM35 Temperature Sensor is an integrated analogue temperature sensor whose electrical output is proportional to Degree Centigrade. LM35 Temperature Sensor does not require any external calibration or trimming to provide typical accuracies. The LM35’s low output impedance, a linear output, and precise inherent calibration make interfacing to readout or control circuitry especially easy.
  The main advantage of LM35 is that it is linear i.e. 10mv/°C which means for every degree rise in temperature the output of LM35 will rise by 10mv. So if the output of LM35 is 220mv/0.22V the temperature will be 22°C. So if the room temperature is 32°C then the output of LM35 will be 320mv i.e. 0.32V.
  As such no extra components required to interface LM35 to ADC as the output of LM35 is linear with 10mv/degree scale. It can be directly interfaced to any 10 or 12 bit ADC. But if you are using an 8-bit ADC like ADC0808 or ADC0804 an amplifier section will be needed if you require to measure 1°C change.
  LM35 can also be directly connected to Arduino. The output of LM35 temperature can also be given to comparator circuit and can be used for over-temperature indication or by using a simple relay can be used as a temperature controller.