Code for esp8266 to build a Wifi controlled car using BTS7960B Motor Driver

Requirements

• NodeMCU ( esp8266 ) - 1pcs
• BTS7960B Motor Driver - 2pcs
• 12-24v DC Motors - 2/4 pcs
• Jumper wires
• Powersupply according to Motors
• 5v Power supply for Nodemcu and BTS7960B

Additional Board Manager URL for NodeMCU:

http://arduino.esp8266.com/stable/package_esp8266com_index.json

Default Wifi Station credentials of NodeMCU:

SSID:

RC_PowerCAR

Password:

connect_me

Android app to control the car

Pin Diagram

NodeMCU	BTS7960B	Details
D3 (Optional)	R_IS & L_IS (Both Drivers)	Side Current Output (Active Low)
D4 (Required)	R_EN & L_EN (Both Drivers)	Rotation Enable Pins (Active High)
D5 (Required)	LPWM (1st BTS7960B)	1st BTS7960B Forward Rotation PWM
D6 (Required)	RPWM (1st BTS7960B)	1st BTS7960B Reverse Rotation PWM
D7 (Required)	LPWM (2nd BTS7960B)	2nd BTS7960B Forward Rotation PWM
D8 (Required)	RPWM (2nd BTS7960B)	2nd BTS7960B Reverse Rotation PWM