I have KOOKYE fingerprint scanner
Device:
https://www.amazon.co.uk/gp/product/B019TPP1UK/ref=s9_simh_gw_g147_i1_r?ie=UTF8&fpl=fresh&pf_rd_m=A3P5ROKL5A1OLE&pf_rd_s=desktop-1&pf_rd_r=0SHK4RN0THZ4NGT6PR3G&pf_rd_t=36701&pf_rd_p=026d359a-cb34-4790-9249-ec9f152ee8e2&pf_rd_i=desktop
I want to connect it to Raspberry Pi 3, but the only library available for this device is for Arduino.
Library:
http://kookye.com/2016/07/24/use-arduino-drive-fingerprint-sensor/
Which is the best way to use the scanner on raspberry pi? Do I need to rewrite the library or I can use an Arduino emulator on Pi? If an emulator is used, how do you make the emulator to listen to the Serial port of the Arduino and which would be better to use?
Related
I got a Microchip RN4871 BLE Module and want it to act as beacon.
So, I connected over UART and executed the following commands:
SS,20
SC,2
NB,09,656667
I am able to scan and connect to it using hcitool and gattool command. Now I want to verify whether the beacon functionality is working or not. I mean the device is periodically broadcasting Beacon packets or not..
How can I verify that.. Is there any android application which can help or can i do with raspberry pi 3 as it has in built Bluetooth Chip
There are some really nice apps from nordic for free available. I like the nrF connect app. I guess it will help you.
I have a UWP app which will display values of sensors connected to Arduino which will be connected to that UWP app. I have a I2C device connected to that Arduino. I want to communicate to that I2C device from my UWP application. But, I can't find a way to do that. Can Someone can help me with that.
There is a technology called Windows Remote Arduino that allows you to control Arduino microcontroller connected to your Windows 10 UWP App. It uses FIRMATA protocol underneath, and I believe it allows you to control I2C sensors as well. If not, you can tweak the source code, because both FIRMATA implementation and Windows Remote Arduino are open source.
I have a CSR4.0 BLE dongle I am using in Raspberry Pi. I am using Bluez stack in the Pi and can make the dongle up & running. Now, when I use some iOS app (LightBlue) to find out nearby BLE devices, most of the time it can't find the CSR device.
A few times the app can find the CSR device, but when I press CSR name in the app, the app tries to connect to the CSR dongle but fails. Then the dongle becomes invisible.
Any thought on why this happens? How can I reliably find the CSR dongle? And how can I connect to it? Do I need to write some BLE application code to run on the Raspberry Pi?
You'll need to advertise a BLE service on the Pi so LightBlue can discover it from your iPhone.
One way to do this is to create a service on the Raspberry Pi using Bleno. Try the battery-service example.
I have a few questions about rpi and arduino.
1. Is it possible to provide arduino and rpi two-way communication? (Sending data from the sensors to the Arduino and from arduino to RPI and processing information on RPI).
2. Can i use sensors from Arduino on RPI?
3. Can I programming RPI using C++ (such an as Arduino)?
Yes, checkout the ArduPi project. Serial communication (a USB cable) between the two is a fairly simple way to get started. It provides bi-directional communication between Raspberry and Arduino. And yes, you can compile C/C++ on the Raspberry Pi (but in most cases, you cannot directly reuse C/C++ for Arduino directly on the Pi, as it might use some special .h files not available on the Pi).
Yes it can. Just use I2C Bus (or Two-Wire). By TWI You can easily communicate Rpi and Arduino.
You can directly read the Arduino through the USB serial port. There is a Linux board I came across that you plug directly on top of your Arduino like a shield (It's called the Rubix) .
Of course it is, Uart , I2C or SPI.
I highly recommand Uart.
1.The library GPIO has demo of Uart Communication.
2.You can use USB to connect the serial port.
you can follow this tutorial to make it run
https://electrosome.com/uart-raspberry-pi-python/
Yes you can communicate using I2C. There should be a wired connection between RPi and Arduino to communicate using I2C. If you wanna try wireless communication you can use ESP8266 13 arduino wifi shield.
https://www.tindie.com/products/doit/esp8266-esp-13-wifi-web-sever-shield-for-arduino/
Otherwise you can use a ESP8266 module replacing arduino and you can communicate bidirectionally using wifi.
Most sensors that work with the Raspberry Pi, also work with Arduino and other boards like it.
I am designing a temperature sensor which I could read the data send over USB to a Android app.
I am using Arduino Uno and a temperature sensor and I have this setup working as I can read temperature by a serial terminal on a PC, but I want the Android app to receive the readings from the Arduino. I used a Sparkfun USB Host shield but the Android with 4.0.1 cannot find the USB device.
Am I using the wrong board? Maybe I should use a Arduino ADK to get it working?
Has anyone any success with this setup?
Android USB Host + Arduino: How to communicate without rooting your Android Tablet or Phone