What is Combo Tool Plus 2.0 APK?
If you are looking for a versatile and powerful app that can help you perform various tasks on your Android device, you might want to check out Combo Tool Plus 2.0 APK. This app is a modified version of the original Combo Tool app, which allows you to connect your Android device to a CH341 USB serial converter and perform input/output operations directly.
Combo Tool Plus 2.0 APK adds some new features to the original app, such as:
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Writing and executing JavaScript code in your Android device and performing I/O directly.
Plugging in different sensors and converters to your CH341 USB serial converter and using them with the app.
Capturing and sending RS485 Modbus frames with the app.
Using the app as a temperature meter, a UV meter, or other devices depending on the sensor or converter you plug in.
In this article, we will show you how to download and install Combo Tool Plus 2.0 APK, how to use it, what are its benefits, and how to troubleshoot common issues with it.
How to download and install Combo Tool Plus 2.0 APK?
Downloading and installing Combo Tool Plus 2.0 APK is very easy and straightforward. Here are the steps you need to follow:
Go to (if you prefer Indonesian) and download the APK file of Combo Tool Plus 2.0 APK.
Once the download is complete, locate the file on your device and tap on it to start the installation process.
You might need to enable unknown sources on your device settings to allow the installation of apps from outside the Google Play Store.
Follow the instructions on the screen and wait for the installation to finish.
Once the installation is done, you can launch the app from your app drawer or home screen.
Here are some screenshots of the installation process:
How to use Combo Tool Plus 2.0 APK?
Using Combo Tool Plus 2.0 APK is very simple and intuitive. Here are some basic steps you need to follow:
Connect your Android device to a CH341 USB serial converter using a USB OTG cable.
Launch the app and select the COM port that corresponds to your CH341 USB serial converter.
You can now use the app to write and execute JavaScript code, use sensors, or capture RS485 Modbus frames.
Here are some examples of how to use each feature:
Writing and executing JavaScript code
To write and execute JavaScript code, you need to tap on the "JavaScript" button on the main screen of the app. You will see a text editor where you can type or paste your code. You can also use some predefined functions that are available in the app, such as print(), read(), write(), delay(), etc.
To execute your code, you need to tap on the "Run" button on the top right corner of the screen. You will see the output of your code on the bottom part of the screen. You can also use the "Clear" button to erase the output.
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Here is an example of a simple JavaScript code that prints "Hello, world!" and reads a byte from the CH341 USB serial converter:
print("Hello, world!"); var x = read(); print(x);
Here is the output of the code:
Hello, world! 65
Using sensors
To use sensors, you need to plug in a sensor or a converter to your CH341 USB serial converter. The app supports various sensors and converters, such as temperature, humidity, pressure, UV, light, sound, color, etc. You can also use a generic analog-to-digital converter (ADC) or digital-to-analog converter (DAC) to connect any sensor or device that outputs or accepts analog or digital signals.
To use a sensor or a converter, you need to tap on the "Sensor" button on the main screen of the app. You will see a list of supported sensors and converters. You need to select the one that matches your device. You will then see a screen that shows the data from your device in real time. You can also use the "Record" button to save the data to a file on your device.
Here is an example of using a temperature sensor with the app:
Capturing and sending RS485 Modbus frames
To capture and send RS485 Modbus frames, you need to plug in a RS485 converter to your CH341 USB serial converter. The app supports both Modbus RTU and Modbus ASCII protocols. You can also use a generic RS232 converter to connect any device that uses serial communication.
To capture and send RS485 Modbus frames, you need to tap on the "Modbus" button on the main screen of the app. You will see a screen that allows you to configure the parameters of your communication, such as baud rate, parity, stop bits, etc. You can also select the protocol (RTU or ASCII) and the mode (master or slave).
If you select master mode, you can send Modbus frames to a slave device by entering the address, function code, and data of your frame. You can also use some predefined functions that are available in the app, such as read coil status, write single coil, read holding registers, write single register, etc. You will see the response from the slave device on the bottom part of the screen.
If you select slave mode, you can receive Modbus frames from a master device and send back responses. You can also use some predefined responses that are available in the app, such as acknowledge, exception code, etc. You will see the request from the master device on the bottom part of the screen.
Here is an example of sending a Modbus frame to read holding registers from a slave device with address 1:
What are the benefits of Combo Tool Plus 2.0 APK?
Combo Tool Plus 2.0 APK is a very useful and versatile app that can help you perform various tasks on your Android device. Here are some of the benefits of using this app:
You can write and execute JavaScript code on your Android device and perform I/O operations directly with your CH341 USB serial converter.
You can plug in different sensors and converters to your CH341 USB serial converter and use them with the app.
You can capture and send RS485 Modbus frames with the app.
You can use the app as a temperature meter, a UV meter, or other devices depending on the sensor or converter you plug in.
You can save and share your data from your sensors or Modbus frames with other apps or devices.
You can learn more about JavaScript programming, I/O operations, sensors, converters, and Modbus protocols with this app.
How to troubleshoot common issues with Combo Tool Plus 2.0 APK?
If you encounter any issues with Combo Tool Plus 2.0 APK, here are some possible solutions:
Why is my CH341 USB serial converter not detected by the app?
This could be due to one of the following reasons:
Your CH341 USB serial converter is not compatible with the app. Make sure you are using a genuine CH341 USB serial converter that supports Android devices.
Your USB OTG cable is faulty or not connected properly. Try using a different USB OTG cable or check the connection between your Android device and your CH341 USB serial converter.
Your Android device does not support USB OTG or does not have the necessary drivers. Check if your Android device supports USB OTG and has the CH341 driver installed. You can download the driver from .
Your Android device does not have enough power to supply your CH341 USB serial converter. Try using a powered USB hub or an external power source for your CH341 USB serial converter.
Why is my JavaScript code not working or giving errors?
This could be due to one of the following reasons:
Your JavaScript code has syntax errors or logical errors. Check your code for any typos, missing brackets, wrong operators, etc. You can also use a JavaScript validator or debugger to find and fix your errors.
Your JavaScript code is not compatible with the app or the CH341 USB serial converter. Make sure you are using the predefined functions and variables that are available in the app and that match the specifications of your CH341 USB serial converter.
Your JavaScript code is too complex or too long for the app or the CH341 USB serial converter. Try simplifying your code or breaking it into smaller chunks. You can also use a JavaScript minifier or compressor to reduce the size of your code.
Why is my sensor or converter not working or giving wrong data?
This could be due to one of the following reasons:
Your sensor or converter is not compatible with the app or the CH341 USB serial converter. Make sure you are using a supported sensor or converter that works with the app and the CH341 USB serial converter.
Your sensor or converter is faulty or not connected properly. Try using a different sensor or converter or check the connection between your sensor or converter and your CH341 USB serial converter.
Your sensor or converter is not calibrated or configured correctly. Check the manual of your sensor or converter for any calibration or configuration steps. You can also use the app to adjust some parameters of your sensor or converter, such as gain, offset, resolution, etc.
Why is my Modbus communication not working or giving errors?
This could be due to one of the following reasons:
Your RS485 converter is not compatible with the app or the CH341 USB serial converter. Make sure you are using a supported RS485 converter that works with the app and the CH341 USB serial converter.
Your RS485 converter is faulty or not connected properly. Try using a different RS485 converter or check the connection between your RS485 converter and your CH341 USB serial converter.
Your Modbus parameters are not matched with your master or slave device. Check the baud rate, parity, stop bits, protocol, and mode of your Modbus communication and make sure they are consistent with your master or slave device.
Your Modbus frame is not formatted correctly. Check the address, function code, and data of your Modbus frame and make sure they are valid and complete.
Conclusion
Combo Tool Plus 2.0 APK is a great app that can help you perform various tasks on your Android device using a CH341 USB serial converter. You can write and execute JavaScript code, use sensors, capture and send RS485 Modbus frames, and more with this app. You can also learn more about JavaScript programming, I/O operations, sensors, converters, and Modbus protocols with this app.
If you want to download and install Combo Tool Plus 2.0 APK, you can follow our guide above and enjoy its features and benefits. If you encounter any issues with Combo Tool Plus 2.0 APK, you can also follow our troubleshooting tips above and solve them easily.
We hope you found this article helpful and informative. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading!
FAQs
What is the difference between Combo Tool Plus 2.0 APK and Combo Tool APK?
Combo Tool Plus 2.0 APK is a modified version of Combo Tool APK that adds some new features, such as writing and executing JavaScript code, using sensors, and capturing RS485 Modbus frames.
Where can I get a CH341 USB serial converter I'm glad you asked. A CH341 USB serial converter is a device that allows you to connect your Android device to a serial port or a Modbus device using a USB OTG cable. You can use it with Combo Tool Plus 2.0 APK to perform various tasks, such as writing and executing JavaScript code, using sensors, or capturing and sending RS485 Modbus frames. If you are interested in getting a CH341 USB serial converter, you can find some online sources that sell them. Here are some links that you can check out: - [USB to Serial (RS-232/DB9): CH340/CH341 Driver [Download]](^1^) - This is a driver that you need to install on your computer to use the CH341 USB serial converter. It also has a tutorial on how to use the device and some examples of projects that you can do with it. - [How to Install CH340 Drivers - SparkFun Learn](^2^) - This is a guide that shows you how to install the CH340 drivers on different operating systems. It also has some suggested reading on serial communication and microcontrollers. - [CH341SER.EXE - NanjingQinhengMicroelectronics](^3^) - This is the official website of the manufacturer of the CH341 USB serial converter. You can find the datasheet, the drivers, and some other information about the device here. Is Combo Tool Plus 2.0 APK safe to use?
Combo Tool Plus 2.0 APK is safe to use as long as you download it from a trusted source and scan it for any viruses or malware. You should also be careful when using the app with your CH341 USB serial converter and your sensors or converters. Make sure you follow the instructions and precautions that come with your devices and avoid any damage or injury.
Is Combo Tool Plus 2.0 APK free to use?
Combo Tool Plus 2.0 APK is free to use and does not require any registration or subscription. However, you might need to purchase a CH341 USB serial converter and some sensors or converters if you want to use the app with them. You can find some online sources that sell them in the previous FAQ.
Can I use Combo Tool Plus 2.0 APK with other devices or apps?
Combo Tool Plus 2.0 APK is compatible with any Android device that supports USB OTG and has the CH341 driver installed. You can also use the app with other devices or apps that use serial communication or Modbus protocols, such as Arduino, Raspberry Pi, PLC, etc. You just need to make sure that your devices or apps are configured correctly and have the same parameters as your app.
How can I update Combo Tool Plus 2.0 APK?
To update Combo Tool Plus 2.0 APK, you can check for any new versions on the download links that we provided above. You can also follow the developer's website or social media accounts for any news or updates on the app. If you find a new version, you can download and install it following the same steps that we showed above.
How can I contact the developer of Combo Tool Plus 2.0 APK?
If you have any questions, feedback, or suggestions for the developer of Combo Tool Plus 2.0 APK, you can contact them through their email address: for more information and support. 44f88ac181
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