The Little One Technic

05.02.2014

Here you can see the current state of the robot “The little one”.

the-liitle-one-aufbau

The battery:
In this state I use NiMh cells with 7,2 V together,

The drive train:
There are two gear motors, controled by the L293D circuit. Important is that you connect the 7.2 V directly to the L293D circuit (Vdrive). You need also 5 V to connect to the L293D circuit (Vcc).  Five pins are connected to the Arduino.

The servo:
There are three pins: Vcc, GND and the control pin (connected to the Arduino).

The ultra sonic sensor:
There are four pins: Vcc, GND, Trigger and Echo. Both, Trigger and Echo are connected to the Arduino.

The LM7805:
This is a voltage regulator. The Input voltage is 7.2 V (battery). For the most components we need only 5V. Currently I use this circuit to transfer 7.2 V to 5V.

The Arduino:
The Arduino is connected to the battery (7.2 V).


The scetch:
https://playground2014.wordpress.com/the-little-one-code/


The Video on YouTube:
http://www.youtube.com/watch?v=qFTJShisqRg

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