You just connect the ground wire to Arduino ground, power to Arduino power, and the data wire to one of pins 9-13. Controlling a single servo with an Arduino is simple. As previously mentioned, the microcontroller of choice is Arduino. With new servo's, I'm also going to add a new Microcontroller to the Teddy. Then I ran them through to the body (making sure they were all labeled so that I knew which motor each set of wires controlled), and then I put the Teddy Ruxpin back together. The wires for the new servos needed to run from the head, through neck into the body, so I had to solder some extra wire to make the wires from each servo longer. It worked perfectly! So after doing the same thing for the remaining servos, I put them all back inside the head. Before continuing I tested out the servo by connecting it to an Arduino and then loading up the Servo Sweep sample code. Then I just hot glued everything in place. Then I used a Dremel to shape the plastic casing so that the new servo would fit. I then positioned this new servo and gear so that it turned the wheel. What I ended up doing was removing the motor and most of the gears, salvaging the last gear to mount atop a new servo. I wanted to retain the rubber wheel and gear fixture, however, because this is what keeps the servo mounted inside the head and turns the facial expressions. So I decided to just replace them with newer servos. Once I was able to get to the servos, I tested them again and found that they were completely dead. That means we're going to have to dig deeper and replace the servos all together. Finding that the red and blue wires on each motor were for power, I stripped them and connected them to a 9v battery to see if there was any movement in the motors. With this knowledge, I found schematics online showing how the motors that move the eyes and mouth were connected. So unscrewing the tape player on the back of the teddy, it revealed that I had a plastic tape player with a green circuit board i.e. Version 1 had a metal tape player and a green circuit board, version 2 had a plastic tape player and a green circuit board, and version 3 had a plastic tape player and a beige circuit board. The chart below shows how you can tell which version of the teddy you have. ![]() I found out that there were three versions of the original teddy, so before I could troubleshoot it, I needed to find out which version I had. After all, one person's trash is another person's treasure.With absolutely zero knowledge of how the Teddy Ruxpin works, I turned to my external brain drive (the internet) for answers on where to start. ![]() But even if your toy is slightly used, there may still be a market for it. ![]() Of course, the older the toy and the better condition it's in (new and with its original packaging seems to be preferred), the higher it could sell for. Based on that data, these old toys could sell for a lot of money if you still have them hanging around your home. So we looked at eBay price trends for new and used toys that sold at auction. Resale site eBay is known for its wide array of collectibles for sale, and toys make up a large part of what's offered in that marketplace. But, just as '90s fashion is coming back, so, too, are '90s and early '00s toys in the resale market. Of course, it stands to reason that toys from the '60s, '70s, and '80s can turn a profit, since many of them haven't been sold in decades. Whether you have your own toys stashed away in a storage unit or you're housing your children's toys, there are many old toys worth money. Everything old is in again, and that means your vintage toys may be worth money.
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