Connecting ESP8266 with Raspberry PI

ESP8266

                                    Connecting the ESP8266 Wi-Fi module to Raspberry Pi.The ESP8266 is a low-cost Wi-Fi chip with full TCP/IP stack and microcontroller capability produced by Shanghai-based Chinese manufacturer, Espressif Systems. The chip first came to the attention of western makers in August 2014 with the ESP-01 module, made by a third-party manufacturer, AI-Thinker. This small module allows microcontrollers to connect to a Wi-Fi network and make simple TCP/IP connections using Hayes-style commands. However, at the time there was almost no English-language documentation on the chip and the commands it accepted.The very…

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Raspbian Jessie | PIXEL | SEP-2016 Release | Explore

Raspbian is a free operating system based on Debian optimized for the Raspberry Pi hardware. An operating system is the set of basic programs and utilities that make your Raspberry Pi run. However, Raspbian provides more than a pure OS: it comes with over 35,000 packages, pre-compiled software bundled in a nice format for easy installation on your Raspberry Pi. The initial build of over 35,000 Raspbian packages, optimized for best performance on the Raspberry Pi, was completed in June of 2012. However, Raspbian is still under active development with…

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Raspberry Pi 3 as BLE Beacon

               Bluetooth beacons are hardware transmitters – a class of Bluetooth low energy (LE) devices that broadcast their identifier to nearby portable electronic devices. The technology enables smartphones, tablets and other devices to perform actions when in close proximity to a beacon. The first commercial implementation of bluetooth beacons was by an Australian company called DKTOB (trading as Daelibs), who leveraged Bluetooth for indoor proximity sensing in its Seeknfind location attendance solution. Daelibs designed and manufactured a bluetooth beacon for use in shopping centres based…

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MCP3208 SPI ADC Interfacing with Raspberry Pi

The MCP3208 12-bit Analog-to-Digital Converter (ADC) combines high performance and low power consumption in a small package, making it ideal for embedded control applications. IC features a successive approximation register (SAR) architecture and an industry-standard SPI™ serial interface, allowing 12-bit ADC capability to be added to any PICmicro® microcontroller.  IC Features 100k samples/second, 8 input channels, low power consumption (5nA typical standby, 400 µA max.active), and is available in 16-pin PDIP and SOIC packages. Applications for the IC include data acquisition, instrumentation and measurement, multi-channel data loggers, industrial PCs, motor control, robotics,…

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DHT11 | Interface using JAVA | Raspberry Pi

The DHT11 is a basic, ultra low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air, and spits out a digital signal on the data pin (no analog input pins needed). Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old. Source : Adafruit…

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MySQL database access using Python in Raspberry Pi

          While working with Python in Raspberry Pi it might be useful to have a database access for your application or somewher it is required.Or may be as a beginner you would like to use MySQL with Python.Here i have compiled a post on how to use MySQL with Python…               First of all you have to install python-MySQLdb which interacts between the My-SQL database and the Python.So to install it in the Raspberry-Pi terminal type..           sudo apt-get install python-mysqldb I have already installed so my…

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Booting Raspberry Pi from USB Flash Drive

      Loading OS over SD card is ok but it is not that faster and also have limited read/write cycles so one might look for USB Flash drive to load the OS and is also a cheaper option.It makes the PI little faster.So here i am posting how to boot your Pi from USB drive.       First write the image file to the USB Drive as int this post(installing-raspbian-over-raspberry-pi).This will write the os to the Drive.Now remove the SD card from the Pi and insert it to the…

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