I wrote a code on Raspberry pico. And I want the codes in this program not to be stolen. What encryption do I need to make so that no one can see it?
The project is very simple. Control of a smart home automation. I spent a lot of effort. I don't want it stolen. What can be done so that they don't pull my codes from raspberry?
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How can I interface my Fingerprint Sensor using VB6? I've already made a login form but I need help using the fingerprint sensor for the security. Please help me, thanks in advance.
Here's a good starting point: Getting Started with Optical Fingerprint Reader – R305. It's for the 305 but the overall setup should be very similar if not identical. Most importantly you will find an SDK for R30X modules in the Resources section of this page. It includes drivers, demos (with source code), SYNO API, user manual, etc.
Also, Vishnu M Aiea wrote a C++ library to handle communication with the R307 sensor: R30X Arduino Library. You should consider using this to handle the communication aspect since it's already been built for you. You might need to get it compiled into a DLL to use with VB6.
There's also an article he wrote about the whole setup process: Interfacing R307 Optical Fingerprint Scanner with Arduino
These links thoroughly explain how to set everything up. I think with all this information you should be able to make a lot of progress and come back to Stack Overflow with more specific questions.
I have been doing some research but I can't find a solution for my specific problem.
We have an ancient program at work that works as a stock manager.
Now I need to build extra features but I can't use the SQL database used by that system. (kafka was here)
So I started building a program that runs parallel to the existing system.
To reduce the extra input I want to use the same input devices.
These are mainly barcode scanners, which if I'm correct, are basically just keyboard emulators.
The question: Is there a way to use 1 Usb device on multiple computers?
I was thinking to hook the scanner to the computer where I can do the most and let this computer act as an emulator for the other computer?
But I think that's as realistic as an usb splitter.
On the other hand I was thinking of using a raspberry or arduino is "the middle man" between the scanner and 2 pc's which should give me more options.
Extra difficulties:
I can't install anything on the computers that run the ancient program.
I have little to no rights on other computers I can use (kafka, you again?)
I can only work with C#3.5 to avoid triggering the overly sensitive virus detection :)
I can't set up servers
I can only run stuff in windows
I can't run installers
I'm wanting to develop a GUI application for the Raspberry Pi. I want this application to run without the overhead of a Desktop GUI environment, directly on X11. My google searching has led me nowhere trying to find examples of people doing this. My preferred platform is Qt, although if an option were available in another language/environment I would be open to it. My question is: does anyone know of examples of applications that do this? I'm just looking for anything to get me started.
I am a newbiee in building robots, And through searching internet i find out that we need Raspbery pi (a computer), Romeo board (The hardware), Arduino (Development environment), ROS (Robot operating system).
But i just don't understand how are these all used, What are their individual usage. Why each of these are used for?
Can anyone explain it to me?
What should I do, From where should i start?
Thanks in advance.
This might be better suited to the Robotics forum... however, I'd recommend starting with Arduino. Very beginner-friendly, very easy to find sample code and cheap projects to start with. Also, there are many books for Arduino development that explain all the hardware compatible with it.
Also, these things aren't required for all projects. I'm not entirely sure of your sources, but cool things can be done with Arduino alone, as well as along with these other tools.
I'm learning electronics/microcontroller programming through TI-MSP430 Launchpad(Energia) and Arduino.
Both are based on wiring framework, and very good place to start for a beginner like me.
Now as I'm forwarding in my learning, I'm thinking to explore more and want to do a real world project. My project can be easily done on both above mentioned platforms, but I want to use STM8S-Discovery(Dev board or STM8S series MCU) for this but there is no wiring framework for STM8S as far as I know and I don't want to use if there is any.
What other skills/information I need to migrate from these wiring framework based platform to real world microcontroller projects?
Thanks in advance for inputs!
The datasheet and user's guide will be your best friend. Be sure to look at programming examples for that device as well. Typically you'll need to do the following:
Initialize clock system and setup peripherals and I/O. (Frameworks generally do all this for you). Read some of the actual code behind the scenes of Energia to see how it actually works.
Once the main hardware is initialized, setup your business logic (variables).
Loop indefinitely (like most embedded systems do)... while (true) anyone?
I hope that helps.
I contributed the A110LR09 Booster Pack library for Energia. Take a look at the source code if you're interested with how to write specific device drivers in C/C++ for the MSP430.