IOT

IOT

Kid's Eye and Energy Safe Smart TV - Part 2

Sometimes I feel, kids do this just to irritate us. Or may be, we always have a prioritized  list of problems in our subconscious mind. When we solve the top

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Abhijit Ghosh

9 Jul 2020 · 5 min read

IOT

Kid's Eye Safe Smart TV - Part 1

Outside of home COVID-19. Inside at home COVID-16. Whole world is fighting against COVID-19. But for COVID-16, I am all alone. I am tired of saying "please stay away from

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Abhijit Ghosh

19 Jun 2020 · 4 min read

IOT

Internet enabled (IOT) smoke alarm with SMS notification using esp8266, MQ2, ThingSpeak and Twilio

ESP8266 based Internet enabled (IOT) smoke and fire alarm to send SMS notification (Twilio) and to trigger alarm with flashing red LED if it detects smoke and leakage of combustible gas using MQ2 gas sensor. Also ThingSpeak analytics is a great bonus.

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Abhijit Ghosh

4 Sep 2017 · 7 min read

IOT

IOT - Home Automation project using Geofencing, MQTT, ESP8266 and MycroPython

A home automation project that maps switching on/off of appliances with your entry/exit of a geofence (virtual perimeter for a real-world geographic area). Step into a cool room without having to wait for the air conditioning to start functioning? Watch the garage door open as you drive in.

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Abhijit Ghosh

8 May 2017 · 7 min read

IOT

Home Automation - Internet of Things - MQTT (MQ Telemetry Transport), ESP8266 and MycroPython

This is my first post on home automation. As a 'Hello World' project, switching on/off a bulb is a common use case. This post is not an exception. But

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Abhijit Ghosh

22 Mar 2017 · 6 min read

IOT

Configure STA_IF interface of ESP8266 (MycroPython firmware) to connect with WIFI network automatically on boot

ESP8266 can act as both Station / WIFI client (STA_IF interface) and Access Point (AP_IF interface). AP_IF interface is active by default in MycroPython firmware on ESP826 . In

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Abhijit Ghosh

14 Mar 2017 · 4 min read

IOT

Example: Remotely switch on/off and control brightness of an LED using MicroPython WebREPL

So far, we have flashed MicroPython firmware onto an ESP8266 and setup WebREPL to run programs over WIFI on the chip. Now it's time for a hands-on excercise. We'll remotely switch on/off and control brightness of an LED using MicroPython WebREPL.

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Abhijit Ghosh

8 Mar 2017 · 5 min read

IOT

How to setup WebREPL to connect to Python prompt (REPL) of ESP8266 over WIFI network?

WebREPL daemon auto-start is disabled by default in MycroPython on ESP8266 for security reason. Here, we'll enable the same, connect to the REPL over WIFI using locally installed WebREPL client and run a "Hello World" program remotely on the chip.

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Abhijit Ghosh

23 Feb 2017 · 3 min read

IOT

How to flash MicroPython firmware onto an ESP8266 ESP-12E chip using esptool?

By default, ESP8226 module comes with AT Firmware. In this post, we'll see how to flash MicroPython firmware onto an ESP8266 ESP-12E chip using esptool. Tools,Technologies and Components used

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Abhijit Ghosh

4 Feb 2017 · 6 min read

OpenCV

How to uninstall OpenCV (Open Source Computer Vision) from Raspberry Pi - Raspbian Jessie?

To uninstall OpenCV (Open Source Computer Vision) from Raspberry Pi (Raspbian Jessie), follow the steps mentioned below in this article.

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Abhijit Ghosh

10 Jul 2016 · 3 min read

Raspberry Pi

Install and Configure Oracle Java ME Embedded on Raspberry Pi

Raspberry Pi is a low cost, credit-card sized and fastest selling personal computer. In this article, we'll install and configure Oracle Java ME Embedded on a Raspberry Pi. What is

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Abhijit Ghosh

17 Mar 2015 · 6 min read