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  • Temperature/Altitude/Pressure Display using BMP180 1

Temperature/Altitude/Pressure Display using BMP180

I was in Bhutan last December, and as we travelled to different locations, I kept wondering what the temperature and altitude was, and wished I had some gizmo that would show me these values. Back home, I did a bit of research on altitude sensors, and one that came up

By |2015-03-30T18:30:00+05:30March 30th, 2015|

A Python script to talk to the Spark Core

I have been playing around with the Spark Core and am very impressed with the built-in software support from Spark. This is a quick project that uses Python to talk to the Spark Core using the Spark cloud API. I also wanted the Spark Core to sent notifications to my

By |2015-03-01T18:30:00+05:30March 1st, 2015|
  • An ESP8266 IoT Temperature Monitor for my Balcony Garden 2

An ESP8266 IoT Temperature Monitor for my Balcony Garden

I had previously written about using the ESP8266 WiFi module to make an Internet Of Things (IoT) device that plots temperature data on the web, at thingspeak.com. That was a mess of wires on a breadboard. I have now refined this project - simplified some components, put them on a

By |2015-01-17T18:30:00+05:30January 17th, 2015|
  • An Easy IoT Project with the ESP8266 WiFi module 3

An Easy IoT Project with the ESP8266 WiFi module

Note This is one of my older ESP8266 articles. Please check out my more recent ESP8266 projects below: A Desk Drawer Protector Using ESP8266 An ESP8266 IoT Temperature Monitor for my Balcony Garden The ESP8266 WiFi Module The ESP8266 is a WiFi module that costs less than 5 USD. This

By |2019-09-23T17:22:07+05:30December 18th, 2014|
  • A Simple 8 Pin Header Hack 4

A Simple 8 Pin Header Hack

The 8 pin male dual row headers on some of the small peripheral boards (for example NRF24L01 and ESP8266 boards) are not suited for a breadboard - unless you are trying to short the pins out. A simple hack is to cut female pin headers, stick them together with hot

By |2014-12-14T18:30:00+05:30December 14th, 2014|
  • A Joule Thief Circuit 6

A Joule Thief Circuit

The Joule Thief I was looking for a simple voltage boost circuit for one of my projects, when I came across a circuit called the Joule Thief. This cool sounding circuit is astonishingly simple - just a coil which you could wind yourself, a resistor, and a transistor. There seems

By |2014-12-08T18:30:00+05:30December 8th, 2014|

Goodbye WordPress, Hello Jekyll.

Static Pages I got introduced to web pages in 1995 when I joined Penn State University as a grad student. Those were the days of HTML and static web pages. Or cgi-bin if you were more advanced. Over the next 10 years, I built and maintained several personal web pages

By |2014-12-06T18:30:00+05:30December 6th, 2014|