I am thinking of starting a project where I use the NXP Explore-NFC board for the Raspberry Pi so that I can write NDEF messages to the NFC via an Android device. I currently own the Raspberry Pi and the NXP Explore-NFC board. I have been doing some research and know that you can use the libnfc library with the board. My background is in Java and Android development, so I have very little experience in embedded systems. This is why I wanted to use the libnfc library.
I wanted to know if anyone has managed to get this working with the same NFC board and if so, do I need to learn any new programming languages to achieve this. If anyone has any information about this please let me know. Thank you in advance.
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I have plugged in a RFID scanner into the usb port of the raspberry pi. I noticed it appears in the /dev/input/by-id folder as usb-RFIDeas_USB_Keyboard-event-kbd.
I found code on GitHub that seems to suggest that I can read from this device, but I am pretty new to understanding all of this so I keep getting confused about how I can run the code to read information from my RFID scanner.
I have a large project which is being controlled by a Teensy 4.0 and I accidentally broke off the mini-USB. I will probably buy a new one anyway, but I wanted to try uploading using the RX TX pins to learn how to do it. I have a SparkFun FTDI Basic Breakout but all the tutorials I can find are for Teensy's, is there a tutorial which shows this, or can you tell me how to upload to a teensy from the Arduino IDE using FTDI? Thanks!
You can not upload firmware to the Teensy 4.0 over a serial connection. Firmware upload is handled by an additional processor on the Teensy board which only communicates over USB and programs the main processor using its JTAG interface.
I know you can upload a arduino using another arduino, you can search about it.
I'm a bit confused. I explain to you my project, I would like to make a "reader" by using beacon technology (ibeacon for apple, eddystone for android) using a raspberry pi 3. The smatphone application sends an acknowledgment code when passing the person. The raspberry marks and updates an online database. I wanted to ask, first of all can this be done? My problem is to realize the beacon transmission, then for the app and the database I have no problems. I tried using bluez but I can not detect the phone. Is there any online tutorial that could help me? Thanks
If you are looking to use the phone to emit a beacon transmission and then use the Raspberry Pi 3 to detect the beacon, then yes, this is possible. I put together a tutorial on how to use the Android Things to detect beacons on the Raspberry Pi 3.
The problem with using BlueZ for beacon detection is that it is simply not stable on the Raspberry Pi, and will freeze up and stop detecting requiring a reboot.
I want to build a small project which will monitor some devices(pump,ac etc) status(on/off, current/voltage level etc). I have decided to use raspberry pi 3 as a server. I am thinking about scada. is it efficient to do these works? also i am not familiar to scada. is there anyone to guide me--
where should i start?
what is the suitable software for doing it??
You could just use Python and the RPi.GPIO module to control and monitor the GPIO pins on the Raspberry. Python is powerful, open-script and easy to get into.
You would need to develop a bread-board to protect your Raspberry and allow for monitoring higher voltages.
Some example code on using GPIO with Sockets here: https://github.com/matzpersson/raspberry-gpio-sockets
You may use ScadaLTS on Raspberry.
In ScadaLTS have available modbus protocol among many others.
This is web oriented software with graphics views drag and drop editor.
For now you may read GPIO data programmatically to file and use ASCII File Reader DataSource.
We plan to have datasource dedicated for GPIO.
ScadaLTS based on ScadaBR - fast tutorial https://www.youtube.com/watch?v=JjOQWwoaQuQ.
you could also check out mySCADA. they make a solution for Raspberry pi at http://www.smarthouse.cloud
you can use the GPIO on the Pi or talk to industrial PLC's.
I want to create a game console with my Raspberry Pi and create my own game with an SD Card. Do I need an OS loaded with games or can I insert various SD Cards with different games?
In order to use the Raspberry Pi as a retro gaming console you will have to set it up. Go to the RetroPie Download page and choose the appropriate download for your version of your Raspberry Pi. The go to the RetroPi first installation page and follow the directions. After you complete that you will have to move your roms to the Raspberry pi into the /RetroPie/roms folder on the SD card. I use a Raspberry Pi for classic gaming and I love it.
I think there is some confusion here.
RetroPi IS technically the OS. You then "add" games to it.
If you want to create your own games then you have plenty of options.
You can technically create your own games and export them as NES games to be read by the NES emulator. This is very difficult and requires you to use tools that might be out of scope for beginners. The advantage is that you can put them in eprom chips and play them on an actual NES.
I would instead try to create a game using something like PyGame and play them on a RaspberryPi. Yo uwon't need RetroPi for something like this. Instead you'd need an OS like Raspbian
Yes definately. A raspberry pi without an operating system will not do anything. Its like asking a human to function without a brain. You should check out the retropie project. Its an operating system for the raspberry pi that lets you install roms and play the. You can even use controllers such as a ps3 controller.
Retropie
Head to RetroPie to download the image to your computer. Then, flash it on to the MicroSD with either Win32DiskImager on Windows or RPI-sd card builder on a Mac.
Have any other questions I can help with?