Best friend? Once.

He was my best "new" friend, once. We met two year ago, and he was like a "big" brother to me, and we talked about anything, which I thought this condition or fate was endless, before I decided not to be that "nice" with him.

I still cannot figure out, the more the efforts i tried to help, the more he blamed on me. Seems like everything I did before go in vain. I taught, spent my time, and even my interest, finally he thought or showed me that, "you are my good friends if and only if you stand by my side, make or treat my defects as my strengths, do everything I ask you to do without any grumble....".

The saddest thing in one's life is, the one you care is not care for you, the one you help does not think or thank for your help, the one you love showing off his/her happiness with partner. Yet, I knew that every problem arises because of one self. You were betrayed because you choose to believe in someone, you fall in love because you give yourself the chance or persuade yourself to give in......

To me, I do not have a best friend, and I do not wish to be a best friend of someone, as I do not want to betray anyone. This is the life I knew earlier, and I decided to be indifferent to everything around me and anyone I met, except my family.

RF 315/433 MHz Transmitter-receiver Module without Arduino? Sure!!

4 Channel RF transmitter + receiver

How to connect this wireless RF module and operate without Arduino? It is POSSIBLE??  I found this way out of sudden, you could say that I am to bore to try everything I bought from China as all stuff just too cheap, made me dare to try without second thought. Yet, the shortcoming was that, since it is non-programmable, it is actually works like sending a "HIGH" and "LOW" through radio wave, that means no analog control!!

Schematic

The most important thing you need is encoder and decoder. For my case, I used RX-2B and TX-2B IC.Just follow this schematic and everything will work. You can also use RX-5B and TX-5B if you want more than 5 channels. Consumed about half an hour to finish this. It can be seen that 2 IC on the receiver side. the left side is RX-2B, right one is L293D, I made this purposely so that I could use on rc car, where forward and backward can be done by connect the motor to L293N directly. MultiPURPOSE!! Lastly, remember to adjust the trimmer on receiver side so that it receives signal from transmitter!  

Receiver tonel board

Receiver and transmitter

Shoud I make an Instructable?