Velveeta Recipe In Commercial

C1-P8

Hi, sorry if I left to spend much time since the last article, but I was a bit 'busy.

The project I'm working now it's really interesting, in fact I'm trying to automate a C1-P8 (widely known as R2-D2) found in a Happy Meal.

This robot will have essentially two ways:

1. Remotely controlled using the built-RX-TX-2C and 2C which are in the cars R / C for 2 pounds of the coop.

2. Goes around and avoiding objects.

In these two modes, however, the range sensor will measure the distances that will be translated as a change in color.

could also implement the demo mode in which the robot stands still and do a show with colors. But we'll see, it is still early

IR-RANGE SENSOR

I created the IR-Range Sensor with 2 leds a receiver and a transmitter according to this scheme:

doing some tests I realized that it works quite well, thanks to NetWorm (Arduino user forum), I suggested how to isolate the receiver from the sunlight, I managed to improve it. In fact, the receiver then the shell is white does not filter the sun's rays, if it is close to a very light sensitivity decreases. By covering the receiver with the negative blacks are unable to filter out extraneous light.

And here are some results using my Arduino Board as an oscilloscope.

removing the hand from the sensor voltage increases, while if the approach will reduce the voltage.

Movements

thanks especially goes to my cousin who gave me the remote-controlled helicopters that threw away. In fact I was able to recover the DC motors in perfect for my project as we see from these photos.

• To drive the two DC motors have built two bridges very small H following this pattern.

I used 4 BC33725 PNP transistor, 4 resistors and 4 diodes 1N4148 1K. Everything works fine except the fact that the USB port provides little power to start in the engine, however, is not important because everything will feed through a more powerful battery. I did not use gates in my circuit because they are practically useless and will not let me drive the speed with PWM!

And here's a video of the first result.

I finished the second H-bridge and I inserted the second "leg". Right now I have to write the functions in the arrivals waiting for me and the various AVR microcontroller programmer that I ordered.

Power

This is the "incredible" that I will use the battery, I pulled out of a elicotterino telecomandato e i vantaggi grossi sono che, oltre a erogare 7.5V, ha un circuito esterno per la carica risparimando così spazio nel case del robottino.

Ora come ora sto scrivendo qualche funzione per gestire i motori e il sensore. Successivamente verranno il controllo remoto e la gestione del led RGB.