Phyphox

Using Phyphox and ESP32 Bluetooth to Plot Power Supply Voltage vs. External Resistance

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Using Phyphox and ESP32 Bluetooth to Plot Power Supply Voltage vs. External Resistance

1 Introduction After conducting the experiment “Plotting the P-R Characteristic Curve of the Power Supply,” using the existing circuit and making a few modifications to the experimental source code, the microcontroller successfully performed the experiment “Plotting the Relationship Curve between Power Supply Output Voltage and External Resistance.” 2 Circuit Setup for the Experiment Connect a … Read more

Exploring Current Variation in Voltage Divider Circuits with Phyphox

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Exploring Current Variation in Voltage Divider Circuits with Phyphox

Recently, we studied the relationship between the current in various parts of a voltage divider circuit and the movement of the sliding contact, drawing the relationship graph with the help of Geogebra. Now, we use Phyphox for experimental exploration to see if the theory matches the practice. Maker Jiaozuo Early Research Using Geogebra to explore … Read more

Exploring the Relationship Between Maximum Induced Current and Magnet Drop Height Using Phyphox, ESP32, and ADS1115

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Exploring the Relationship Between Maximum Induced Current and Magnet Drop Height Using Phyphox, ESP32, and ADS1115

Experimental Scene 1 Introduction Recently, I have been deeply researching the “Do It” experiments in the new textbook section on “Electromagnetic Induction” to explore the relationship between the drop height of a magnet and the maximum value of the induced current in a coil. When using the maximum reading of a DC meter as the … Read more

Using Phyphox and ESP32 Bluetooth to Plot Power Output vs. External Resistance

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Using Phyphox and ESP32 Bluetooth to Plot Power Output vs. External Resistance

1 Introduction After conducting the “Plotting the Power Supply Volt-Ampere Characteristic Curve” experiment, the microcontroller successfully replicated Teacher Mei’s experiment on “Plotting the Relationship Curve Between Power Output and External Resistance” using the existing circuit with only minor modifications to the source code. 2 Circuit Experiment Setup Connect a 10-ohm fixed resistor in series with … Read more

Using Phyphox and ESP32 Bluetooth for Coil Induction Experiment

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Using Phyphox and ESP32 Bluetooth for Coil Induction Experiment

Recently, the microcontroller obtained a coil and conducted a coil induction experiment using ESP32 and Phyphox. Due to the small inductance of the coil, the induction phenomenon was not very obvious, but the technical solution has been validated. If a coil with more turns and an iron core can be obtained, the experimental effect should … Read more

Using ESP32 and Phyphox to Debug Ultrasonic Distance Sensor

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Using ESP32 and Phyphox to Debug Ultrasonic Distance Sensor

Recently, I found a very magical device in my desk drawer. Upon closer inspection, it turned out to be an ultrasonic distance sensor from a kit given during a Maker Education Instructor training in Zhengzhou back in 2016. This device has been lying in the drawer for nearly 5 years. Is it still usable? I … Read more

Measuring EMF and Internal Resistance Using ESP32 and Phyphox

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Measuring EMF and Internal Resistance Using ESP32 and Phyphox

1 Introduction Recently, during the joint examination, there was a question about measuring the electromotive force (EMF) and internal resistance of a power source using the voltage-resistance method. Considering the authenticity of this experimental background, we validated the experiment using ESP32 and Phyphox. 2 Question Review and Reference Analysis 3 Experimental Validation In this validation … Read more

Electromagnetic Oscillation Experiment Using Phyphox, ESP32, and ADS1115

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Electromagnetic Oscillation Experiment Using Phyphox, ESP32, and ADS1115

Recently, we conducted an electromagnetic oscillation experiment using Phyphox, ESP32, and ADS1115. The results were very satisfactory, and we witnessed the oscillation of current in the LC oscillation circuit composed of the coil and capacitor. Following the diagram, we connected the ESP32 and ADS1115 using DuPont wires. The wiring was quite complex due to the … Read more

Using ESP32 and Phyphox to Plot the I-V Characteristics of Solar Panels

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Using ESP32 and Phyphox to Plot the I-V Characteristics of Solar Panels

Experimental Environment Recently, the microcontroller enthusiast used ESP32 and Phyphox to plot the I-V characteristics of a solar panel. The experimental circuit is simple to set up, with automatic data collection and automatic graphing, saving time and effort while yielding good results. What used to take dozens of minutes to complete can now be done … Read more

Exploring the Relationship Between Photoresistor Resistance and Light Intensity Using ESP32 and Phyphox

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Exploring the Relationship Between Photoresistor Resistance and Light Intensity Using ESP32 and Phyphox

Experimental Scene and Circuit Connection Recently, I found online that a teacher published a paper in a journal, using the voltammetry method to measure the resistance of a photoresistor while measuring light intensity with a light sensor, then plotting the relationship curve of photoresistor resistance and light intensity in a spreadsheet. The steps are cumbersome … Read more