Previously we talked about Oscilloscope. Any DIY oscilloscope kit is quite challenging and also fun to build. Question is whether they worth buying & what types of kits are available. The other way of building DIY oscilloscope is avoiding these ready to use kits and assemble ownself. Second type is not discussed in this article. DIY Oscilloscope Kit : Basics Most of these … [Read more...]
Oscilloscope : Functions & Basics
Electrical engineering and electronics has two classic instruments since the beginning of history of the two engineering sciences - oscilloscope and function generator. Oscilloscope is an electronic visualization instrument for graphic representation of the electrical signals which can vary over time. Oscilloscope presents the values of the electrical signals in the form of coordinates in a … [Read more...]
Nokia 5110 Arduino Snake Game
Previously, we talked about Nokia 5110 wiring details. Here is circuit diagram and code to play Nokia 5110 Arduino Snake Game. This Snake is like original Nokia Mobile's famous Snake II game. Nokia 5110 is a versatile LCD display and capable to perform almost everything. The basic problem is inconsistent quality of these Nokia 5110 LCDs - these are refurbished from 2 decade old thrown away mobile … [Read more...]
Raspberry Pi Car PC System : List of Needed Hardwares
Previously we talked about DIN slot in Raspberry Pi Car Starter Guide and OBD II. Here is a list of hardwares needed to build Raspberry Pi Car PC System on ordinary old cars & a budget within $200 or so. You can use Orange Pi instead of Raspberry Pi, we talked about the single board computers in a separate article. The old illustration is possibly helpful : Raspberry Pi Car PC … [Read more...]
Rotary Encoder For Dummies : For Arduino, Raspberry Pi
Some theory better to know before buying rotary encoders. Here is rotary encoder for dummies guide intended for Arduino, Raspberry Pi users. Rotary encoders are like potentiometers but potentiometers do not have full rotation without limits unlike encoders. Rotary encoders output reflected binary code (RBC) (also known as Gray code) to inform how much, in which direction the encoder has been … [Read more...]
Arduino Multifunction Shield (HCARDU0085) : Features
This is kind of review out of marketing research as ex-willing consumer. Initially I thought that it is Made in China and has lot of sensors. Arduino Multifunction Shield has 4 digit 7 segment led display, 4 SMD led, 10k potentiometer, 3 push buttons, buzzer and lot of interfaces. It is not Made in China, it is just a costly thing with very less features. $2 would be correct price for it. This is … [Read more...]
China Bicycle Speedometer Review
Possibly most families except the misfortunate have a bicycle. The "premium" China bicycle speedometers sells at $5 to $7 on Ebay, Amazon. Initial plan to develop a DIY speedometer with Arduino and TM1637 LED display dismissed as the unit costs lesser than half than DIY. Here is China bicycle speedometer review with infographics explaining functioning parts, pdf manual and how it really performs … [Read more...]
Raspberry Pi Cardboard Robot TJBot With IBM Watson API
In another article we have shown easy example of using IBM Watson's power of machine learning as a WordPress Plugin which can analyse the emotion or tone of post's text. Instead of server, if we use a hardware, the thing becomes as smart object and basic example of Internet of Things (IoT). In this guide we point how to use Raspberry Pi like single board computer & IBM Watson API to create … [Read more...]
Securing Jumper Wire Connections : Prototyping Daugterboard
There are many ways which we can use to secure the electrical wiring between a development board, basic electronic components and various modules, sensors to prevent loose connection, short circuit or wrong interpretation. Securing jumper wire connections is an important part of breadboard wiring. Prototyping daugterboard (prototyping shield) can help you securing the connections. In previous … [Read more...]
Jumper Wire & Solid Wire For Breadboard Wiring
Previously we discussed about breadboard, breadboard power supply, breadboard style prototyping boards, wire wrapping. In this article we will briefly discussed the commonly use gauge, types, numbers of jumper wire & solid wire for breadboard wiring. They are needed for hobby to serious electronics works. This will complete a part on basic matters around electronics works. Children also can … [Read more...]
Nokia 5110 Arduino Wiring, Technical Details : Basic Arduino LCD
Previously we talked about choosing displays for Arduino. At that time we had no idea that Nokia 5110 Arduino modules are made out of used Nokia 5110 like thrown away phones. After knowing the background story, we really can not suggest this thing to buy. Buying a color LCD, TFT display for Arduino is correct option. Raspberry like single board computers supports high resolution displays and we … [Read more...]