The Wokwi Simulator
Uri, the creator of the Wokwi simulator, has developed a simulator for a variety of MCUs and electronic parts. This project is an impressive feat, considering it was created by one individual. Uri has also created a YouTube channel to showcase his work. His videos demonstrate how to use the simulator to test out various sensors and microcontrollers.
LTspice Simulator
The LTspice simulator is a popular tool for electronic circuit design. It allows users to simulate circuits without having to purchase components or solder. This makes it a convenient tool for quickly testing out ideas. The simulator also includes built-in instruments, such as oscilloscopes and spectrum analyzers, which provide a full-fledged lab experience without breaking the bank.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Uri’s Wokwi simulator takes the LTspice concept to the next level. It offers a simulator for Arduino, ESP32, Pi Pico, STM32, and ATtiny microcontrollers. This is a great tool for those who are working with these microcontrollers, as it allows them to test out their ideas without having to remove the microcontroller from the circuit. Additionally, the ESP32 simulator includes Wi-Fi capabilities, allowing users to test out their Wi-Fi projects without having to purchase any hardware. This makes the Wokwi simulator an invaluable tool for anyone working with these microcontrollers.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Wokwi is a browser-based project that enables users to simulate a variety of development boards, including Arduino, ESP32, Pi Pico, STM32, and ATtiny. This project is particularly useful for testing projects before they are implemented in the real world, as it allows users to check their internet connection and display without having to purchase the necessary hardware.
Exploring the Wokwi Interface
When a user opens the Wokwi project, they are presented with three areas: the sketch, the diagram, and the serial console. The diagram typically consists of a development board, such as an ESP32, and a small OLED display connected with four wires. The code is the same as it would be for a normal ESP32, and it connects to Wi-Fi and then to coindesk.com to get a JSON file with the price. The necessary libraries for this task include Wire, Wi-Fi, HTTPclient, and ArduinoJson.
Testing the Simulation
To test the simulation, users must first connect to the Wi-Fi network called Wokwi GUEST, which does not require a password. Once connected, the ESP32 will display the actual Bitcoin price. If the simulation works properly, users can then test further by swapping VCC and ground on the OLED display to see if it still works. Even if the power cables are deleted, the display will still work.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Wokwi is an online platform that allows users to simulate Arduino, ESP32, Pi Pico, STM32, and ATtiny microcontrollers. It is a great tool for developers to quickly test out their code without having to purchase any hardware. The platform is easy to use and provides a comprehensive set of features to help users get the most out of their simulations.
Connecting Components to the Platform
The platform allows users to connect components such as displays, buttons, and LEDs to their simulated microcontrollers. This makes it easy to test out code and see the results in real-time. The platform also allows users to connect components such as VCC and GND to the microcontrollers. This allows users to easily declutter their diagrams and ensure that all chips are correctly connected.
Compiling and Testing Code
Once components are connected, users can compile and test their code. The compilation time depends on the size of the sketch and libraries used. After the compilation is complete, users can test out their code and see the results in real-time. This makes it easy to debug and troubleshoot any issues that may arise.
Analyzing Signals with Logic Analyzers
The platform also allows users to simulate logic analyzers and connect them to the microcontrollers. This allows users to analyze signals in real-time and see how the code is affecting the signals. The platform also supports Pulseview, a free logic analyzer software, which makes it easy to analyze the signals and debug any issues that may arise.
Playing Games with ESP32 S3
The platform also supports the ESP32 S3 microcontroller, which allows users to play games such as Simon Says. This is a great way to test out code and see how the microcontroller reacts in real-time. The platform also simulates the S3, which makes it easy to test out code without having to purchase any hardware.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Wokwi is a powerful platform that enables users to simulate Arduino, ESP32, Pi Pico, STM32, and ATtiny microcontrollers. It is suitable for a variety of projects, from prototyping to playing around. The platform can be used to simulate a wide range of components, including LEDs, 74HC585 ICs, and 7 segment displays. It is also possible to include custom functions in the sketch to emulate the behavior of a sensor.
Documentation and Support
The documentation provided by Wokwi is comprehensive and easy to understand, making it suitable for users who are already familiar with the Arduino platform. However, if users encounter any severe problems, they can get help from the active Discord channel.
Joke Generator
One of the projects that can be simulated with Wokwi is the Joke Generator. While not all jokes are particularly funny, it is still a fun project to try out.
Formatting Text
Wokwi also enables users to format text, allowing them to avoid words randomly hyphenating. This can be especially useful for larger screens.
Wokwi Club
For those who want more features, they can join the Wokwi Club. This membership offers additional features and benefits.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Wokwi is a powerful platform for simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny microcontrollers. It provides a private Wi-Fi gateway that enables connections to servers on private networks, not just the internet. The platform is customer-driven, with users able to vote for which functionality should be programmed.
Downloading the Exe File
To get started, users must download an exe file and trust the programmer. As a simple example, a basic sketch from the PubSub library can be used to connect the project to a private MQTT server. Wi-Fi credentials are not required, as Wokwi GUEST works with PCs already connected to a home network.
Checking the Result
The result can be checked using MQTT Explorer. The simulator should connect to the Mosquitto server and the messages should come through. Visual Studio Code can also be used, allowing users to debug their sketch. Micropython and Circuitpython are also supported.
Supported Processors
Wokwi supports a range of processors, including Risc V ESP32s, Pi Pico, and some STM32 boards. ATtiny microcontrollers can also be used, though they must be taken out of the circuit for programming.
Simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny with Wokwi
Debugging can be a daunting task, especially when Serial.print is not available. To make the process easier, Wokwi can be used to simulate a blink sketch and then copy-paste the code into the Arduino IDE to program a real Attiny85. Wokwi is able to recognize the pins and even shows the correct color rings on the resistor. This makes it easy to test the sketch and see if it works.
The Difference Between Wokwi and LTspice
When testing the sketch, there is a noticeable difference between Wokwi and LTspice. For example, if the value of the resistor is changed to 330 Mega Ohms, the LED will still blink, even though this would not be the case in reality due to the low current.
Debugging with Wokwi
Surprisingly, Wokwi can be used to debug the ATtiny85. This includes setting breakpoints and using single step, which is useful for complex programs. This was demonstrated by Uri, who was able to dim the LEDs with a simple program.
Wokwi is a useful tool for testing projects before they are implemented in the real world. It allows users to simulate a variety of development boards, including Arduino, ESP32, Pi Pico, STM32, and ATtiny. The project is easy to use and provides users with the ability to test their internet connection and display without having to purchase the necessary hardware.
Overall, Wokwi is a great platform for developers to simulate Arduino, ESP32, Pi Pico, STM32, and ATtiny microcontrollers. It is easy to use and provides a comprehensive set of features to help users get the most out of their simulations. The platform also allows users to connect components, compile and test code, analyze signals with logic analyzers, and even play games with ESP32 S3.
Wokwi is a powerful tool for simulating Arduino, ESP32, Pi Pico, STM32, and ATtiny. It is easy to use and can be used to debug complex programs. This makes it an invaluable resource for anyone looking to program these devices.
