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24 May 2015

esp-03_board

by Nathan Chantrell:

This is a small dev board I designed to make experimenting with and deploying the ESP8266 ESP-03 modules a bit easier. As well as breaking out all the pins to 2.54mm headers it has a position to fit either a DS18B20 temperature sensor or a DHT22 temperature/humidity sensor plus the required pull up resistor. It can be powered from 3.3V or 5V+* if the regulator is fitted and there is a footprint for a micro USB connector if required.

ESP8266 ESP-03 Dev Board – [Link]

21 May 2015

F4N3ZR7I9UE0Q7W.MEDIUM

by TrackerJ @ instructables.com:

One of the main problem in battery powered projects is to choose/use the proper battery size/model/type. As market is flooded now with a lot of low quality batteries claiming thousands of mAh ( Ultrafire fakes stories is just an example) the only way to proper check them is to run a set of tests.

A simple basic tester that will be able to monitor over the entire battery lifetime at least few parameters like, voltage, current, power consumption and stored energy between charges can give you valuable informations about the parameters and health of the battery. And of course also you can see how are looking the numbers against the datasheet claims :).

ESP8266 WIFI Battery Monitor System – [Link]

21 May 2015

FM430_-_A_MSP430_and_TEA5767_project

Rohit Gupta shows off his digital FM Receiver on MSP430 using TEA5767:

I completed one yesterday using the MSP430 and TEA5767 Chip. Gave it a minimalist switch to toggle the channels stored in an array. Gives realtime channel strength and transmission quality values too over serial.

FM430 – A MSP430 and TEA5767 project that lets you listen to clear digital FM – [Link]

20 May 2015

photo

This project is a versatile, configurable, and cost effective development board available for the 16F628A or other 18 PIN Microcontroller from Microchip. The board has simplest form with all the Port pins terminating in a Relimate connector (Header Connector) for easy connection to the outside world.

16F628A Microcontroller development board – [Link]


14 May 2015

ESP-Breakout-600x399

Baoshi of DigitalMe wrote an article detailing his ESP8266 (ESP-07/12) Full I/O Breadboard adapter, that is available at Github:

The rise of the ESP8266 WiFi chip was almost overnight with Espressif’s open approach and pushing from Hackaday. While no ground-breaking product has yet emerged, the development on the chip are phenomenon. However due to an unknown reason the ESP8266 modules manufacture seems to prefer non-standard 2.0mm pitch connector, which gives a lot of headache to breadboarding lovers like me. This forced me to make a breadboard friendly ESP8266 breakout board.
The modules I’m targeting are ESP-07 and ESP-12, both having identical pinout but only differ in antenna type. I choose these two because they have all the I/O available, and using same edge castellation (half vias) connectors which is easy to work with.

ESP8266 Breadboard adapter – [Link]

14 May 2015

interfacing-PIR-sensor-to-8051

Praveen from CircuitsToday has written up an article on interfacing PIR sensor to 8051 microcontroller:

PIR sensors are widely used in motion detecting devices. This article is about interfacing a PIR sensor to 8051 microcontroller. A practical intruder alarm system using PIR sensor and 8051 microcontroller is also included at the end of this article. Before going in to the core of the article, let’s have a look at the PIR sensor and its working.

Interfacing PIR sensor to 8051 microcontroller – [Link]

29 Apr 2015

IMG_20150116_154725

by mygeekblog.net:

As any beginner electronics hobbyist I have recently came to conclusion that using Arduino (or even Mega328) for small projects is neither cost-effective or educational (I’ll explain why later).

Another reason for writing this article is that I came across few ATTiny13A-SSU chips @ less than $0.90 each, which is even lower the official retail price, so I just had to buy 5 of them, although I didn’t know at the time whattahellamigointodowithit what is it really capable of.

Starting with ATTiny13 – [Link]

29 Apr 2015

F2RR8C3I7SVQAYU.MEDIUM

by silentbogo @ instructables.com:

If you previously worked(or currently working) with small 8-bit microcontrollers, like ATTiny or PIC12, you’ve probably encountered a fundamental problem of not having enough GPIO pins for your needs or project requirements.

Upgrading to a larger MCU is only one of the options, but as usual there is an alternative. In this article I will explain how to use shift registers in some common situations in order to expand the I/O capacity of your microcontroller. As an example I will use an ATTiny13A and a 74HC595 shift register.

Getting more I/O pins on ATTiny with Shift Registers – [Link]

24 Apr 2015

cf71e8a25009102ae51042014f985425_original-550x286

The IoT development platform that runs Python in real time, and features the perfect blend of power, friendliness and flexibility.

A small, super low power, inexpensive, and 100% Python programmable IoT development board. The WiPy takes the wireless freedom of WiFi and combines it with the power, flexibility, and ease of use of Python. We designed the WiPy from the ground up, with one goal in mind: “Let’s make IoT development fun both for beginners and professionals”.

  • Inexpensive, small and breadboard friendly.
  • Ultra low power (850uA with the WiFi connection active)
  • 100% PYTHON PROGRAMMABLE.
  • Lots of GPIOs, interfaces and peripherals.
  • Powerful CPU and state of the art WiFi radio.

The WiPy: The Internet of Things Taken to the Next Level – [Link]

22 Apr 2015

PIC_18F_28_PIN_PIC_Development_Board_PIC

This is a versatile, configurable, and cost effective Development Board designed for the 18F – 28 pin series of Microcontroller from Microchip. The board is simplest form with all the Port pins terminating in a header connector for easy connection to the outside world.

PIC 18F – 28 PIN PIC Development Board – [Link]



 
 
 

 

 

 

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