Purpose: To have fun and show my grandson what can be accomplished with learning and a little effort.
What it Does: Using the remote control, it moves forward & backwards, right & left. It blinks its eyes, talks & can grasp and holds objects with its "hands".
Background: The robot was my 5 year old grandson Eliot's idea; “We should build a robot”. When I told him that I thought might be too difficult, he said that we just needed directions, so he sat down and made a set of directions showing, in his 5 year old mind, how to build a robot. (See Below). The ball was now in my court - how could I not follow through?
Project Challenges: According to Eliot it had to walk and talk. Eliot's directions included painting, adding a battery, building (and painting) a remote control and giving it a name. Can you guess what Eliot named it?
What We Did:
Eliot and I built the frame out of PVC pipe and painted it.
Eliot drew the face.
Blinking eyes add a touch of robot realism.
Added Two motors which can be operated individually for turning, or together to go straight.
A record/playback module supplies the voice.
Power is from 4 "D" cells and 1 9v battery.
I re-purposed an old VCR wired remote control that I found in my Dad's junk box.
History lesson kids: remote controls weren't always wireless.
How It Works:
Pressing "Start" causes the eyes to start blinking and provides power to the other circuits. Automatic timeout after 15 minutes to conserve the batteries.
The “Right” button causes the left motor to operate, turning the robot to the right.
The “Left” button causes the right motor to operate, turning the robot to the left.
Press “Left” & “Right” buttons together for straight ahead operation.
The “Reverse” button activates a reversing relay powering both motors with reverse polarity.
A "Hands" toggle switch on the remote opens and closes the "hands".
Pressing the “Speak” button causes the record/playback module to play the recorded message.
Press and hold the "Record" button on the "Start/Record" panel to record a new message.