physics

Webduino

Webduino is a physics topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Webduino rather than just read about it. In short: The BPI Bit (also referred to as BPI:bit, stylised as webduino:bit) is an ESP32 with Xtensa 32bit LX6 single/dual-core processor based embedded system The board is 5 cm × 5 cm and has an ESP32 module with Xtensa 32bit LX6 single/dual-core processor, with a capacity of up to 600DMIPS, with a built-in 448KB ROM and 520 KB SRAM accelerometer and magnetometer sensors, 2.4G WiFi, Bluetooth and USB connectivity, a display…

Key takeaways

Webduino belongs to physics; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Webduino to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Webduino from memory before moving on to harder problems.

Reference excerpt

The BPI Bit (also referred to as BPI:bit, stylised as webduino:bit) is an ESP32 with Xtensa 32bit LX6 single/dual-core processor based embedded system The board is 5 cm × 5 cm and has an ESP32 module with Xtensa 32bit LX6 single/dual-core processor, with a capacity of up to 600DMIPS, with a built-in 448KB ROM and 520 KB SRAM accelerometer and magnetometer sensors, 2.4G WiFi, Bluetooth and USB connectivity, a display consisting of 25 light-emitting diodes, two programmable buttons, and can be powered by either USB or an external battery pack. The device inputs and outputs are through five ring connectors that are part of the 23-pin edge connector. BPI:bit provides a wide range of onboard resources, supports photosensitive sensor, digital triaxial sensor, digital compass, temperature sensor interface. Webduino:bit have 25 intelligent control LED light source that the control circuit and RGB chip are integrated in a package of 5050 components. Cascading port transmission signal by single line. Each pixel of the three primary color can achieve 256 brightness display, completed 16777216 color full color display, and scan frequency not less than 400 Hz/s. BPI:bit use MPU9250 on board, MPU-9250 is a multi-chip module (MCM) consisting of two dies integrated into a single QFN package. One die houses the 3-Axis gyroscope and the 3-Axis accelerometer. The other die houses the AK8963 3-Axis magnetometer from Asahi Kasei Microdevices Corporation. Hence, the MPU-9250 is a 9-axis MotionTracking device that combines a 3-axis gyroscope, 3-axis accelerometer, 3-axis magnetometer and a Digital Motion Processor™ (DMP) all in a small 3x3x1mm package available as a pin-compatible upgrade from the MPU-6515. With its dedicated I2C sensor bus, the MPU-9250directly provides complete 9-axis MotionFusion™ output. The MPU-9250 MotionTracking device, with its 9-axis integration, on-chip MotionFusion™, and runtime calibration firmware, enables manufacturers to eliminate the costly and complex selection, qualification, and system level integration of discrete devices, guaranteeing optimal motion performance for consumers. MPU-9250 is also designed to interface with multiple non-inertial digital sensors, such as pressure sensors, on its auxiliary I²C port. BPI:bit interface：

BPI:bit for arduino Source code on GitHub: https://github.com/BPI-STEAM BPI:bit for webduino source code on GitHub: https://github.com/webduinoio BPI:bit wiki page : http://wiki.banana-pi.org/BPI-Bit

BPI:UNO32 for Webduino & Arduino

The BPI:UNO32 (also referred to as BPI UNO32, stylised as BPI-UNO32), BPI-UNO32 uses the ESP-WROOM-32 of Espressif company as MCU. ESP32 is a single-chip solution integrating 2.4 GHz Wi-Fi and Bluetooth dual mode. The 40 nanometer technology of TSMC has the best power consumption, RF performance, stability, versatility and reliability. It can deal with various application scenarios. Two separate controlled CPU cores, the main frequency can be up to 240 MHz, 448KB ROM, 520KB SRAM. BPI-UNO32 The appearance size is fully matched with Arduino UNO R3

BPI:UNO32 for arduino Source code on GitHub: https://github.com/BPI-STEAM BPI-UNO32 BPI wik page : http://wiki.banana-pi.org/BPI-UNO32

BPI:Smart for Webduino & Arduino

The BPI:Smart (also referred to as BPI-Smart, stylised as Webduino Smart), it use ESP8266 design, Webduino official support it. also can support Arduino. BPI:Smart Board dimensions: 3 cm in length, 2.5 cm in width, 1.3 cm in height, and a weight of 85 grams. Digital pins: 0, 2, 4, 5, 14, and 16. PWM pins: 12, 13, 15. Analog Pin: AD (A0). Other pins: TX, RX, 3.3V, VCC, RST, and GRD. BPI:Smart has a photocell sensor, an RGB LED, and a micro switch button on board. The photocell is connected to the AD pin, and the RGB (Red, Geen, Blue) LED is connected to pins 15, 12, and 13 respectively (The LED is a common cathode, whereas most of the examples on this site use common anode RGB LED.) And the micro switch button is connected to pin 4. Please take note when you use these pins.

BPI-smart BPI wiki page ： http://wiki.banana-pi.org/BPI-Smart

Illustrations

Worked examples

Example 1 — a first encounter with Webduino

Start with the simplest possible case. Write down what Webduino claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In physics, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Webduino before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Webduino ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Webduino

In research: Webduino appears in physics research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Webduino in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Webduino is common in secondary-school and first-year university syllabi. It links to neighbouring topics Arduino, Physical computing, so understanding it makes those chapters shorter.
In everyday life: Look for Webduino outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Webduino” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Webduino in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Webduino means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Webduino out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Webduino in simple terms?

Why does Webduino matter?

Because it connects several physics ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Webduino?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Webduino.