Nothing trivial and time consuming. You need to study e.MMC standard from JEDEC to understand how host and card side works. You can get the documents free from their site for a registration. You then also need to understand how the connection is made to that eMMC host interface. That would be probably lead you … Read more
You have to create a file called ssh in the boot partition, not the root partition. You can also create a file called wpa_supplicant in the same place and your RasPi will join your wifi network. You’ll probably be able to ssh into it with: ssh [email protected] If not, look in your router’s “DHCP clients” … Read more
How to read solar inverter data with the help of raspberry pi and send to FTTP Server…..please help for written this code [closed] solved How to read solar inverter data with the help of raspberry pi and send to FTTP Server…..please help for written this code [closed]
It looks like the cause of this could be the mix up of gateways and devices as per my previous comment. From the logs it looks like you have changed the types of the device IDs between gateway and device, and in some cases a device with id b827eb0a0ee8 has connected as a gateway (shown … Read more
See: tcp6 0 0 127.0.0.1:8890 :::* LISTEN 1743/java Your web server listens only on localhost address (127.0.0.1). This way it couldn’t be accessed from anywhere but localhost. And your nmap scan shows the same: the only remotely accessible port is 22. To access this service remotely you have to bind web server to any non-local … Read more
Long story short, the Pi is too complex hardware-wise to operate without an OS (for the vast majority of tasks, anyway). An operating system is essentially an environment for your program to work in. It provides standardized means to use and manage hardware, interrupts, storage (incl. filesystems), I/O etc. What is more inportant, it does … Read more
Solution 1: use SSH pre-shared key to login via SSH without a password. See this link for how to do it. After you have configured it properly, you are able to run a command on your server: ssh hostname-or-ip-of-the-raspi command arg1 arg2 … and will execute command arg1 arg2 … on the Raspberry PI, without … Read more
You don’t need this void setup() Linux is take a care of this. Here is Python code: import RPi.GPIO as GPIO import time #GPIO Mode (BOARD / BCM) GPIO.setmode(GPIO.BCM) #set GPIO Pins GPIO_TRIGGER = 18 GPIO_ECHO = 24 #set GPIO direction (IN / OUT) GPIO.setup(GPIO_TRIGGER, GPIO.OUT) GPIO.setup(GPIO_ECHO, GPIO.IN) def distance(): # set Trigger to HIGH … Read more
You can capture a single frame by using the VideoCapture method of OpenCV. import cv2 pic = cv2.VideoCapture(0) # video capture source camera (Here webcam of laptop) ret,frame = pic.read() # return a single frame in variable `frame` while(True): cv2.imshow(‘img1’,frame) #display the captured image if cv2.waitKey(1) & 0xFF == ord(‘y’): #save on pressing ‘y’ cv2.imwrite(‘images/c1.png’,frame) … Read more