Internet of Things

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

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

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