Archive

Posts Tagged ‘Analog’

Send/Receive data using BLE and MBED | BBC Microbit

December 16th, 2016 No comments

BLE

This video is all about sending and receiving data between BBC Microbit and any BLE enabled smart phone. Over here I have used C/C++ (MBED) as the programming language as other language (Python/JavaScript) don’t support UART data transfer service.

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Programming using C/C++ (MBED Offline IDE Setup) | BBC Microbit

December 6th, 2016 No comments

mbed offlineThis tutorial is around BBC Microbit and programming the microbit using MBED offline C/C++ IDE but for this, I have used Yotta command line tool provided by MBED for building the code. This lets you explore many features of the microbit which otherwise are not accessible.

 

 

 

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Checking out BBC micro:bit

October 19th, 2016 No comments

The BBC micro:bit is a pocket-sized, codable computer that allows anyone to get creative with technology. Made possible through a major partnership with 31 organisations, a micro:bit has been given to every 11 or 12 year old child in year 7 or equivalent across the UK, for free.

 

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Can be programmed with high-level online IDEs using the BBC’s website at www.microbit.co.uk/create-code including:
Microsoft TouchDevelop IDE
Microsoft Blocks
CodeKingdoms Javascript
MicroPython
mbed enabled
Online IDE at developer.mbed.org
Easy to use C/C++ SDK
Dedicated micro:bit runtime libraries for rapid development (developed by Lancaster University)

Nordic nRF51822
Multi-protocol Bluetooth® 4.0 low energy/2.4GHz RF SoC
32-bit ARM Cortex M0 processor (16MHz)
16kB RAM
256kB Flash
Bluetooth Low Energy Master/Slave capable
Input/Output
25 LED Matrix
Freescale MMA8652 3-axis Accelerometer
Freescale MAG3110 3-axis Magnetometer (e-compass)
Push Button x2
USB and Edge connector Serial I/O
2/3 reconfigurable PWM outputs
5 x Banana/Croc-clip connectors
Edge connector
6 x Analog In
6-17 GPIO (configuration dependent)
SPI
i2c
USB Micro B connector
JST power connector (3v)

Source : Mbed (goo.gl/dTBWGi)

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Links :
Website : goo.gl/xynZ29
Hardware: goo.gl/DK5QbO

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Getting started with ESP8266 | AT Commands

September 26th, 2016 No comments

Connecting the ESP8266 Wi-Fi module to PC and trying out some AT Commands.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 low price and the fact that there were very few external components on the module which suggests that it could eventually be very inexpensive in volume, attracted many hackers to explore the module, chip, and the software on it, as well as to translate the Chinese documentation.

The ESP8285 is an ESP8266 with 1 MB of built-in flash, allowing for single-chip devices capable of connecting to Wi-Fi.

Source : WikiPedia (bit.ly/2cORmj0)
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Links :
Sparkfun AT Guide : bit.ly/2cEzSbv
Connection Diagram : bit.ly/2cxoTCw
Buy : amzn.to/2cZfUv8

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MCP3208 I2C ADC Interfacing with Arduino

September 21st, 2016 1 comment

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, industrial automation, smart sensors, portable instrumentation and home medical appliances.

Source : Microchip(bit.ly/2dmncHs)


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Links:
Arduino Schematic : goo.gl/YwFy9z
SPI Data packets: goo.gl/r8izQz
Sketch: goo.gl/AyK9ey

Datasheet: goo.gl/EnMNbI
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