April 20, 2018 at 12:27WALL-E based on Arduino UNO with Bluetooth control
After the next viewing of the WALL-E cartoon, the idea came up to collect such a robot for my son. Of course, such a robot is sold, you say, and is called "WALL-E U-Command Remote Control", but it costs a lot. I did not want to buy another toy, I wanted to collect something with my son, with my own elements and functions. What happened, see below.
The search for a donor has begun. In the vast expanses of the well-known auction, a suitable lot “WALL-E U-Command Remote Control” was found for a nominal price. From the seller’s description, the following followed: the IR remote control was lost, one eye does not burn, the left caterpillar does not move. I bought a lot, after a while the package arrived, our joy knew no bounds. WALL-E is large, weighty in size, outwardly all the details are in place and not broken, the insides did not bother me much, because I wanted to change everything and redo it. They inserted the batteries, turned them on - hurray, even something is working, it makes sounds and one eye burns. Dismantled WALL-E to see what is inside and evaluate the amount of work.
It turned out: the diode burned out in one eye - replaced in both with new ones; the left caterpillar does not move due to a bursting sprocket (turned), which is worn on the shaft, which drives the wheel - they drilled the sprocket together with the shaft, inserted a pin and greased with epoxy glue.
The process of modernization and assembly has begun
. Components used:
Sketch Link
The search for a donor has begun. In the vast expanses of the well-known auction, a suitable lot “WALL-E U-Command Remote Control” was found for a nominal price. From the seller’s description, the following followed: the IR remote control was lost, one eye does not burn, the left caterpillar does not move. I bought a lot, after a while the package arrived, our joy knew no bounds. WALL-E is large, weighty in size, outwardly all the details are in place and not broken, the insides did not bother me much, because I wanted to change everything and redo it. They inserted the batteries, turned them on - hurray, even something is working, it makes sounds and one eye burns. Dismantled WALL-E to see what is inside and evaluate the amount of work.
Original WALL-E
It turned out: the diode burned out in one eye - replaced in both with new ones; the left caterpillar does not move due to a bursting sprocket (turned), which is worn on the shaft, which drives the wheel - they drilled the sprocket together with the shaft, inserted a pin and greased with epoxy glue.
The process of modernization and assembly has begun
. Components used:
Arduino UNOI will not fully describe the assembly and connection, below will be a diagram and a photo, I will describe a few points. In the original version, there are only two motors: one stands in the central module and drives the arms, head and eyes - I removed it, the module was modified to install servos to control the arms, head and eyes; the second motor stands in the lower left compartment and drives the tracks - it was controlled through the L293D engine driver. When the motor is reversed, a circular movement is performed back to rotate, as in the original version. I connected the button for playing embedded sounds directly to the corresponding contacts on the original board. WALL-E is controlled via Bluetooth from an Android smartphone through the BlueTooth Serial Controller app .
Bluetooth module HC-05 JY-MCU
Motor driver L293D
Servo SG90 - 4 pcs.
Toggle switch - 2 pcs.
Mini Voltmeter DC 4.5-30V
Solderless Development Board
Wire
Wiring diagram
Assembly photo
Sketch Link
