IoT Hacks

Introduction - As compared to NodeMCU,  ESP8266 does not have components like on board 3.3V voltage regulator,  UART (USB to TTL converter) interface,  reset and flash buttons. So its difficult to program or flash the esp8266 e12 model easily using Arduino IDE as SPI.  So the solution is to make either breadboard connections or design own PCB and mount the various components manually as DYI project (Believe me it is not that easy person like me who is beginner​ and less knowledge of electronics). OR Get a ready made and ready to use breakout board.I started searching on ebay and amazon india web sites and local shops. Luckily I found this one in ebay.in. Its very cheap and coat is around 200 rupees only including shipping. It has following built-in features that helps to give a quick start.  1. On board 3.3v voltages regulator.  2. On board logic level shifter to convert 5v logic to 3.3v logic.  3. Dedicated Reset and Boot switches.  4. Led conne

DigiSpark ATtiny85is small but very effective breakout board. This board is very popular because of its size and easy to use offerings. If you want to know about DigiSpark visit  digistump.com  for more products information. In this blog post I will show how to connect the ATtiny85 module with HC-05 Bluetooth module and blink an LED using Android phone. For this project you would need the following components. DigiSpark ATtiny85 breakout module (1x) HC 05 Bluetooth module (1x) LED any color (1x) 220 Ohms register (1x) Breadboard  Some jumper wires  Schematics: Connections: HC-05 Tx           =>        DigiSpark  ATtiny85 P1 HC-05 Rx           =>        DigiSpark  ATtiny85 P2 LED Anode        =>        DigiSpark ATtiny85 P4 LED cathode      = >       GND via 220 Ohms register HC-05 Vcc         =>        +5 Volts Supply HC-05 GND       =>        GND Before making the connection, you must configure your HC05 Bluetooth module t