Circuit diagram and things you need: The HC-SR505 PIR sensor is affordable and small in size but it is very sensitive. I place it near
Author: AnthonyC
Android Java project — Receipt Generator using Android phone and Bluetooth thermal printer — Part 2 of 7 , Building the MainActivity
All applications(apps) consist of an Activity and a Layout. The different views or pages of an app is call Activity in Android development jargon. The
Using Arduino to interface with 16×2 LCD
Components used: Arduino Uno 16 x 2 LCD 10K potentiometer 330Ω resistor jumper wires breadboard type A / type B USB cable connected to PC
Communication Protocol — Serial Communication
Networking and electronic devices such as printer, mouse, surveillance camera, monitor or any electronics circuits need to have some kind of communication protocol to transfer
Android Java project — Receipt Generator using Android phone and Bluetooth thermal printer — Part 1 of 7 , Introduction to project
This project is using Android Java to build a bluetooth thermal printer receipt generator. Below are pics of the project. This project will be broken
Electronics links…
What is LED forward current What is LED forward voltage Working of transistor as a switch Introduction to Transistor by Sparkfun How schmitt trigger oscillator
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