Wifi ESP Robot with 4 motor driver

NodeMCU ESP8266 to Adafruit Motor Shield V1. This is an old motor driver. I couldn’t find any esp8266 connection with this motor driver anywhere. I made a connection in this way. I hope I could help. I would be very happy if you help me develop the robot.

• Designed a tool by connecting NodeMCU ESP8266 to Adafruit Motor Shield V1.
• Thank you Jan Lipovský http://blog.janlipovsky.cz/2016/03/

• Thank you Muhammad Ansar https://github.com/embeddedlab786/Wifi_Robot

• You can connect to the IP address of the device with any TCP Client application. TCP xxx.xxx.xxx.xxx : 5006 -After connecting, the robot moves according to the commands you send:

command	movement	–	command	movement
F	forward		B	back
L	left		R	right
S	Stop

We give the motion with the dataArray string.

dataArray[0] = 39; //Forward

dataArray[1] = 216; //Back

dataArray[2] = 149; //Left

dataArray[3] = 106 ;//Right

You can construct the contents of this string using the table below.

74HC595 Out	Bits	number	motor	direction
QC	2	4	M1	clockwise
QD	3	8	M1	counterclockwise
QB	1	2	M2	clockwise
QE	4	16	M2	counterclockwise
QF	5	32	M3	clockwise
QH	7	128	M3	counterclockwise
QA	0	1	M4	clockwise
QG	6	64	M4	counterclockwise

Example: We add the numbers of clockwise rotations so that all engines go forward.

Motor 1	+	Motor 2	+	Motor 3	+	Motor 4	=	Calculate
4	+	2	+	32	+	1	=	39

We send the calculated data to the 74HC595 with the following command.

shiftOut(dataPin, clockPin, MSBFIRST, b);

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The connection diagram is as follows.

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L293D Motor Driver Pin Outs

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Adafruit Motor Shield v1 Schematic

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74HC595 Pin Outs

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Final Robot

https://mahirgul.github.io/wifi-nodemcu-robot-esp8266/