Piezoelectric materials

We foresaw your answer in our Crystal Ball.

Color sensors

Digital Encoders for angle measuring

RFID technology , market and applications

Identifying and applying coax connectors - there seem to be a million speciality types now

I would like to see some modules on RC electronics like electronic speed controllers, battery eliminator circuits, radio transmitters, using IoT communication to remotely control machines, programming microcontrollers to manage motor drives, pulse width modulation, etc.

Sensor interfacing

Technicians and technologists may receive some training in how to build electronic systems, but engineers often don't get much training and the rest of the maker community gets zero.

Sensors and Connectors are great but seem like they're for people who already have some sort of idea what they're doing. I've never touched a board, let alone know what any of the parts are.

In my opinion you could start with simple things and, if you have fun you can move on to more and more complicated things. You could use an Arduino Nano and few sensors or, if you've never programmed, you could start with some NE555, CD40XX, LED, etc. to spend some pleasant hours. Explore this site and you will find hundreds of interesting, curious, funny projects!

Hi I have started with arduino a few months ago my knowledge off electronics is limited can you advice me on wear to start building more knowledge up and witch course to start .Thanks Nelson

nelson64 Hi, the First thing I would do is to scrap the Arduino's pitiful IDE and use Eclipse, I use just plain C with my Arduinos, but I still use the Arduino libraries for the most part. you can do this two ways:

first is to write using Arduino FrameWork ie. setup() and loop()  (which leaves a lot to be desired

The second is to write using C (you run into trouble with scoping rules with C++ ).

I normally keep one function on one page of code which is included  + its header file.

ie..

count.h

int counter;  // thsi could now be a Global but you will have to initialize it before you use it

file count_P.h

MaxCount = 8;

MinCount = 1;

#define UP 1

#define DOWN 0

file counter.c

#include counter_P.h

int counter.c ( int updown ) {

    switch (updown) {

        case UP: {  if( counter = MaxCount ) conter = MinCount;

                           else counter++;

        case DOWN:

~~ Cris

Try to go to the web page: https://www.element14.com/community/community/arduino/arduino-tutorials, you will find tutorials, simple projects with diagrams, codes, and videos of the final results. Maybe start by reproducing some simple project you like and then modify it, add features, etc. In this period, when we spend most of our time locked up at home for the pandemic, a hobby like electronics is what it takes to keep our brains active!

Element14 is an inexhaustible source of interesting and curious projects. Have a good time nelson64

Carlo

Im new. Read book about computer gates, buses, RAM, flip-flops, etc. Also searched high and low on internet to find out how/what causes a bit to get turned on (energized/5v). Hope I am not violating any forum rules by asking.

How do "1" bits get energized/volts? Assume a program has defined a constant named ONE that has an initial value of 1 (0000 0001). Does the right most bit get energized (5V) when the program gets loaded into memory? What component of the computer causes that to happen? Same question for how do bits in op codes and operands get energized?

harivney

Ok where to start? what do you what to set to (TRUE or 1)

• for a GATE just tie it to +5v via a 10k pull-up resistor.
• for an Arduino GPIO line.
  1. define you IO pin. use a name its easyer. ie.. #define MyBit0 23   which is the same as int MyBit0 23;
  2. pinMode(23, OUTPUT);    // sets the digital pin 23 as output
  3. digitalWrite(23, HIGH); // sets the digital pin 23 on
• the same question for how do bits in opcodes and operands get energized? why above your knowledge level, Let the compiler do it as this is a risk architure. And a mess.

~~Cris