Let's Make Robots!

receiver

Arduino Code Troubleshooting - VEX Transmitter / Receiver

I'm trying to read the signals sent from the VEX transmitter to the VEX receiver through my Arduino Mega. I started with this code and then made some modifications to visualize the outputs.

IR RC code problems...

 

 

#include <IRremote.h>

#define m1F 6

#define m1R 7

#define m2F 5

#define m2R 8

 

long F = 1979994096;

long L = 1979994056;

long R = 1979994048;

long B = 1979994076;

long S = 1979994080;

int RECV_PIN = 4;

 

IRrecv irrecv(RECV_PIN);

 

decode_results results;

 

void setup()

{

  pinMode(13, OUTPUT);

  pinMode(m1F, OUTPUT);

  pinMode(m1R, OUTPUT);

  pinMode(m2F, OUTPUT);

Radio Link for your robot to your computer (Cheaply).

          Some of you have noticed the small, low-priced transmitter-receiver pairs available, which seem quite nice for robotic links, robot to robot, or robot to controller or controlling computer.

Signals when mail is delivered
Last winter my father asked me if I could make a mailbox sensor for him. That winter was long and cold with lots of snow and he found it frustrating to make his way … Read more

Video Goggles

Presented here is a video goggle system assembled from commercial, off-the-shelf (COTS) components.  The system can be made from recycled materials for under $100.

Bad things happen

 

Now that i got my new battery(8.4v 1000mah, down below), my bluetooth receiver for my "controller" died. Now i have to get another one.

 

GPS receiver board $9.95 with free shipping

I just bought a bunch of these units and thought I would let you know I have them available at a great price.

LMR won't allow me to paste the link here. Go to Ebay and search on Ublox GPS Receiver Board.

 

Super Capacitor in solar power supply - a few queries

I intend to build a remote 'weather station'

The station will:

  • Be completley independant of any external power, ie, it will produce its own power via solar cell(s)
  • Measure temperature only
  • Transmit its finding over an RF link to an indoors reciever

Instead of using a rechargeable battery supply with charger circuit, i have decided to use a 35F, 2.7V super capacitor to smooth and store power.