fosterbrereton

/*
MIT License

Copyright 2019 Foster T. Brereton

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
associated documentation files (the "Software"), to deal in the Software without restriction,
including without limitation the rights to use, copy, modify, merge, publish, distribute,
sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

drewmoseley

#!/bin/bash
#

if [ "$(/bin/ls -1A | wc -l)" -ne "0" ]; then
    echo Please run this from an empty directory.
    exit 1
fi

BASE=$(pwd -P)

rpavlik

# Make sure you have i2c-dev loaded and set up for whatever interface you're using
# This is the right one for the default rpi interface.
cd /sys/class/i2c-adapter/i2c-1/
# Instantiate a new device at runtime
# use the right generic chip name (24cSOMETHING) - don't screw this up! see 
# table at https://elixir.bootlin.com/linux/v4.14.18/source/drivers/misc/eeprom/at24.c#L136
# description further up at https://elixir.bootlin.com/linux/v4.14.18/source/drivers/misc/eeprom/at24.c#L30
# and info about what this command actually does at
# https://elixir.bootlin.com/linux/v4.14.18/source/Documentation/i2c/instantiating-devices#L207
echo 24c16 0x50 | sudo tee new_device

mbinna

Effective Modern CMake

Getting Started

For a brief user-level introduction to CMake, watch C++ Weekly, Episode 78, Intro to CMake by Jason Turner. LLVM’s CMake Primer provides a good high-level introduction to the CMake syntax. Go read it now.

After that, watch Mathieu Ropert’s CppCon 2017 talk Using Modern CMake Patterns to Enforce a Good Modular Design (slides). It provides a thorough explanation of what modern CMake is and why it is so much better than “old school” CMake. The modular design ideas in this talk are based on the book [Large-Scale C++ Software Design](https://www.amazon.de/Large-Scale-Soft

ibrahimlawal

vi /etc/environment

add these lines...

LANG=en_US.utf-8
LC_ALL=en_US.utf-8

fraguada

#from http://www.pyimagesearch.com/2015/03/30/accessing-the-raspberry-pi-camera-with-opencv-and-python/

# import the necessary packages
from picamera.array import PiRGBArray
from picamera import PiCamera
import time
import cv2
 
# initialize the camera and grab a reference to the raw camera capture
camera = PiCamera()

fclairamb

#ifdef SHELL
g++ -Wall -Werror -g -I../../cclib/rapidjson/include $0 && ./a.out
exit 0
#endif

// Output is:
// {"project":"rapidjson","stars":11}
// {"Name":"XYZ","Rollnumer":2,"array":["hello","world"],"Marks":{"Math":"50","Science":"70","English":"50","Social Science":"70"}}
// {"FromEmail":"[email protected]","FromName":"Sender's name","Subject":"My subject","Recipients":[{"Email":"[email protected]"}],"Text-part":"this is my text"}

willprice

Installing OpenCV 3.1 on Raspbian Jessie

Prerequisites

• Keep your system up to date:
  • $ sudo apt-get update
  • $ sudo apt-get upgrade
  • $ sudo reboot
• Make sure you've got an internet connection.
• Make sure you've got
• wget

ryankurte

TargetVendor=0x12d1
TargetProduct=0x1f1c
MessageContent="55534243123456780000000000000011062000000101000100000000000000"

edfungus

#Identify pupils. Based on beta 1

import numpy as np
import cv2
import time

cap = cv2.VideoCapture(0) 	#640,480
w = 640
h = 480