Wireless notification

Projects General Guidance
1

Im currently working on a project which requires electronics but i have no knowledge on electronics as im only expertise in mechanical. My project requires wireless notification from one end to another, i was informed that Arduino could do the following task. When a push to on button is pressed from one end, it will notify LCD display a specific number indicating that the button has been pressed. Everything has to be done wirelessly but i have very limited amount of knowledge on electronics and even worst programming. The parts i have are,

  • Arduino nano
  • Arduino uno
  • Wireless transmitter and receiver
  • Liquid crystal display
  • Push to on switch

If anyone is able to help, i truly appreciate it.
Thank you.

2

Hi welcome to the forum.
What kind of transmitter and receiver ?

3

315mhz rf transmitter and receiver. =)

4

There are maybe between 20 and 100 different 315MHz transmitters/receivers.
Can you give a link to it ?
Scroll through the Sparkfun buying guide to find it: Wireless Buying Guide - SparkFun Electronics
It is probably one of these : RF Link Receiver - 4800bps (315MHz) - WRL-10533 - SparkFun Electronics
Those are used with the VirtialWire or RadioHead library : VirtualWire: VirtualWire library for Arduino and other boards
What distance do you want ?

Meanwhile, you can start to make the lcd work.
The LiquidCrystal library is already included in the Arduino IDE (the Arduino software and development environment).

Click on the "Hello World" example.

5

The project will be much easier to manage if you compartmentalize the different parts of the program - wireless stuff, button stuff, LCD stuff etc. See the demo planning and implementing a program.

Also start by testing each piece in a short program on its own while you learn how it works. Only start to combine them after each piece works on its own.

...R

6

Here is the link of the transmitter and receiver. http://ecx.images-amazon.com/images/I/41gTguZ1pXL._SY300_.jpg . The range isnt a concern actually, my project dosent require tip top performance

7

Wow you actually read my mind. I was hoping to copy and paste codes from different places hoping it would work.

8

Use VirtualWire or RadioHead with those.
And connect a wire to the antenna pin. About 17 cm is best, but just about any wire will do.

Do you have a breadboard ? That makes it easier to test the LCD display and the RF modules.

9

Yes i do have a breadboard, i've recently tried wiring the parts up but the LCD still dosent lights up. Is a potentiometer really necessary?

10

I am trying to do something similar. I have two arduino uno's, a WiFi shield, and a Ethernet Shield. My intentions are for Arduino1 to have the WiFi shield, and have (push button1) on pin 2, and (led1) on pin 3.

Arduino2 will have the Ethernet shield, and (push button2) on pin 2, and (led2) on pin 3.

When arduino1 (push button1) is pressed I would like for led1 and led2 light up.

I have been able to set this up using the Server program, so that the led1 can be cut on/off via push button one, or by clicking an option using an ip address, but have not yet figured out how to make the led2 (arduino2) cut on when button1 (from Arduino1) is pressed.

I would like to follow this and maybe we can help each other figure this out.
I am trying to figure out how to modify the Client program, but because the ("get/ ") doesn't change when button1 is pressed, I have not yet figured out how to accomplish this.