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Controlling an Arduino with a standard RC transmitter/receiver

 

 

Controlling an Arduino with a standard RC transmitter/receiver

There are many ways to remote control an Arduino, Xbee, RF link, IR…

I decided to try and use something I had laying around and that is common among large group of hobbyist : RC transmitter and receiver pair

 

Bluetooth module worth keeping?

 


Well here is the problem, I have a Bluetooth module and I did use it on a previous bot, but it had a library specifically for that module so I was only copying a pasting code to get it working.

Looking for a cheap long range distance sensor.

 

Would anybody know of a cheap long range distance sensor? 

Something with a max distance of 2.5 to 3 meters. It would be for my nitro rc car, I dont totally trust my radio system so a distance activated fail safe would be really reassuring!  

Accuracy isn't ran issue, but price is. 

 

Thank you in advance! 

Update,

Controllable battery charger based on max712


18/02/2010

Well here it is!! My attemps at building my own battery charger using a sample of the max712, here is the original post that inspired me, http://letsmakerobots.com/node/9272 and special thanks to ezekiel181 !!! 

Can these displays be controlled by a Picaxe?


I found these 2 displays in an old cd/casete/radio combo and was wondering if they were worth keeping, 
and if they could be controlled using a Picaxe.
I know that a picaxe can control a display buy using a serial interface but these ones dont have that,
they have about 30 pins, not including the ones for the back lite. 
 
100_0580.jpg   

Polymorph's new friend, sugru.


Think this might interest a few LMR users, specialy those used to polymorph ! 
 
Here is the info about it http://sugru.com/about/, sounds like a mix between blue tack, polymorph and modeling clay. 
 
Hope somebody finds a good bot related project with this stuff!  
 
Video taken from their site.  

A IC form of NPN transistor ?


Is there  such thing as a DIP package of transistors ? (not sure if that is the right way to put it) 
 
I need to control 12 digital connections and putting 12 transistors on a PCB will take up a decent amount of space 
so I was wondering if there is a chip like version.
 
If possible a high voltage ~40V and high amperage trnasistor would be perfect it it exists. 

Salvaging an old motion triggered light

The other day I found this in our local garbage dump:

2009_001.jpg

 

 

I have been trying to figure out its wiring diagram using a multimeter.

 

Encoders for servo mounted wheels

Picture_004.jpg
 
 
I have 2 questions, 
 
- First, when using a C-stamp (programmed using MPlab) is it possible to track the movement of a continus rotating servo so that I dont need to add encoders to know how  much the wheel has turned?  
 
This is an example of coding that makes 2 servos turn(if it helps):
 
void goforth(BYTE lp, BYTE rp, WORD t)
{
  WORD i;