Society of Robots - Robot Forum

Electronics => Electronics => Topic started by: praveen_khm on November 05, 2009, 04:20:56 AM

Title: Build own RF remote control
Post by: praveen_khm on November 05, 2009, 04:20:56 AM

Hi,

I need to build my own remote control for a car. I know we can easily by using a cheap circuit from a remote car. However, I need to do it on my own using TX/Rx circuit.

Searched the forum, google. but did not get enough results. Request anybody here to help me in this. This is my first request and sure you guys would help me on this.

Also if someone can guide me like the 50$ robot, it would be very helpful as it can take me step by step in building the same.

Thanks,
Praveen

Title: Re: Build own RF remote control
Post by: blackbeard on November 07, 2009, 07:26:05 PM

bump for another interested viewer

Title: Re: Build own RF remote control
Post by: praveen_khm on November 08, 2009, 11:44:47 PM

Hey friends,

Anybody to help me on this please?
I need your help to progress on this...

Thanks,
Praveen

Title: Re: Build own RF remote control
Post by: gaurav.p on November 10, 2009, 07:27:31 AM

http://www.thinklabs.in/resources/?p=50 (http://www.thinklabs.in/resources/?p=50)
this may help

Title: Re: Build own RF remote control
Post by: blackbeard on November 10, 2009, 11:28:36 AM

would i be able to use a max323 on the transmitter and an arduino on the receiver?

Title: Re: Build own RF remote control
Post by: hopslink on November 10, 2009, 12:19:27 PM

MAX323 is an analogue switch. Were you thinking of a MAX232 or MAX3232?

The Tx/Rx pair linked above almost certainly has logic level serial inputs/outputs so you could connect directly to an Arduino. To connect the Tx to a PC or other true RS232 input you would typically use a line driver like the MAX232 to convert down to logic levels.

Title: Re: Build own RF remote control
Post by: blackbeard on November 10, 2009, 12:35:05 PM

Quote from: hopslink on November 10, 2009, 12:19:27 PM

MAX323 is an analogue switch. Were you thinking of a MAX232 or MAX3232?

The Tx/Rx pair linked above almost certainly has logic level serial inputs/outputs so you could connect directly to an Arduino. To connect the Tx to a PC or other true RS232 input you would typically use a line driver like the MAX232 to convert down to logic levels.

oops i meant to type max 232 as in serial to ttl