Thermistors cost much less than the LM35 temperature sensor but require calibration due to their non-linear nature. At the same time, a thermistor is more accurate and precise(down to +/- 0.1°C) than an LM35(around +/- 0.5°C). LM35: Very easy to integrate with Arduino. You can read the output voltage directly using an analog pin, and with simple conversion (multiply by 100 to convert from mV to °C), you get the temperature. Thermistors: While they can be integrated, they often require additional components (like a resistor for a voltage divider) and more complex calculations to convert resistance to temperature. This can make them slightly more challenging to Set up. Main Differences Feature LM35 Temperature Sensor Thermistor Type Integrated circuit (analog voltage output) Resistor (typically NTC or PTC) Output Outputs a linear voltage (10 mV/°C) Resistance changes non-linearly with temperature Temperature Range Typically -55 to +150 °C Varies, but generally -40 to +125 °C Accuracy Typically ±0.5 °C or better Can be very accurate, but depends on the type and calibration Response Time Fast response time Generally fast but varies by design Ease of Use Simple to interface with Arduino (analog input) Requires more complex calculations for linearization Calibration Usually factory calibrated Often requires calibration and look-up tables for accuracy For most projects requiring precise temperature monitoring with reliable readings and ease of integration with Arduino, the LM35 is likely the best option. However, if you need the highest accuracy and can manage the additional complexity, consider using a thermistor P.S.: LM358 is an OP-AMP IC. LM35 is a temperature sensor.

@Yvette Inside a standard servo motor, there's a potentiometer connected to the output shaft. This potentiometer provides feedback to the control circuitry about the current position of the shaft. The control circuit compares the desired position (set by the PWM signal) with the current position (measured by the potentiometer). It adjusts the motor's position to match the desired position, typically within a range of 0 to 180 degrees. Continuous rotation servos do not have a potentiometer for position feedback. Instead, the feedback loop is removed or altered so that the motor can spin freely. The control circuitry is modified to interpret the PWM signal in terms of speed and direction rather than position. A neutral PWM signal typically stops the motor, while varying the PWM width in one direction causes forward rotation, and in the other direction, reverse rotation.

... rotation. As they can rotate continuously in either direction. To control a servo using Arduino, you must first install the servo library. Yes, both types can be operated using this library. Then upload this code: 1) For positional servo first: #include <Servo.h> Servo myservo; // create servo object to control a servo void Setup() { myservo.attach(9); // attaches the servo on pin 9 to the servo object } void loop() { myservo.write(90); // Sets the servo position to 90 degrees (middle) delay(1000); // WAits for a second ...