 # how to measure resistance with microcontroller

duykhanh.me 9 out of 10 based on 600 ratings. 1000 user reviews.

Measure resistance with a microcontroller | EDN Figure 1 shows the basic concept of a circuit I designed to check the resistance of the wire coil winding of a stepper motor. An op amp configured as a differential amplifier produces a voltage proportional to the unknown resistance. You can use this circuit to measure resistances—just start by identifying the range of resistances to measure. The stepper motor has a coil with a resistance of 50 Ω ±15%, which ranges from 42.5 Ω to 57.5 Ω. Simple measurment of resistance with microcontroller What is a simple way to measure resistance (in this case 0 100 kOhm) using micro controller (I'm using STM32, it has 12 bit ADC, timer, but no comparator). Measure resistance with a microcontroller EE Times TesT & MeasureMenT World .tmworld February 2011 25 Measurement tips from readers S tepper motors contain coil windings that require resistance How to measure dc current with a microcontroller ... Now lets measure its resistance. The resistance can be measured directly with a digital multimeter. My digital meter shows its value equal to 0.3 ?. arduino Microcontroller Measure Resistance in Circuit ... \\$\begingroup\\$ @MiljanIlić You cannot measure resistance without sending some current through the resistor to measure. But you probably don't have to because you probably don't need to know the resistance of the coil when it's not running. Measuring resistance with a PIC microcontroller? Measure the voltage at the center of the divider with ADC. Run constant current through the sensor. Measure the voltage on the high side of the resistor with an ADC. You'll need a constant current source circuit. Since the sensor resistance is relatively small, you may need to amplify the voltage before the ADC. measure current with microcontroller | All About Circuits Good day all. As per the title name, I am looking to measure current with microcontroller. My basic understanding of how to measure current with microcontroller, is that you use a shunt resistor in line of the load, and measure the voltage across the shunt. Digital Ohmmeter circuit and project using pic microcontroller Digital Ohmmeter project using pic microcontroller. Digial ohmmeter using pic microcontroller is designed in this project. Digital ohmmeter is used to measure resistance of any resistance or any circuit. Multimeter Basics: Measuring Voltage, Resistance, and ... To measure the resistance of a component, disconnect it from a circuit. The value in ohms tells you how strongly a component will resist current. The value in ohms tells you how strongly a component will resist current. Resistance measurement | Microchip Resistance measurement Hi I am just wondering if anyone have any good idea how to measure resistance (PTC temp probe) 62Ω to 209Ω range. I am using PIC18F25K80 and the size matters ; ) I am after really low parts count solution, preferable no external components at all. Measure resistance with a PIC | Electronics Forum ... Not knowing over what range of resistance you want to measure, consider this as a concept. Say, you have a 100uA constant current source, derived from your 5v rail. Connect the 'unknown' resistor, say, a range of 40R thru 40K from the 0V rail to the constant current source, TransistorTester with AVR microcontroller and a little ... TransistorTester with AVR microcontroller and a little more Version 1.11k Karl Heinz Kubb eler kh [email protected] February 8, 2015 Light dependent resistor interfacing with pic microcontroller so now let’s see how we can measure voltage across light dependent resistor. if you are new to programming of pic microcontroller you should know about how to use analogue to digital converter of pic microcontroller.