This circuit appears to be designed for controlling a set of traffic lights and driving multiple DC motors, possibly for a model intersection with moving parts. The ESP32 microcontroller is used as the central processing unit to control the traffic lights and the motors through the L298N motor drivers. The MT3608 modules are used to step up the voltage from the 4 x AAA battery mount to the required levels for the motor drivers and other components. The MG996R is a servo motor that is likely used for an additional movement mechanism within the system.
D32
connected to L298N DC motor driver (5V)D25
connected to Traffic Light (Green)D26
connected to Traffic Light (Yellow)D27
connected to Traffic Light (Red)D14
, D23
, D22
, D21
, D19
, D18
, D5
, D4
, D2
, D15
connected to various pins on L298N DC motor drivers and MG996R servo motor for control signalsGND
connected to Traffic Light (GND), L298N DC motor driver (GND), and MG996R (GND)VOUT+
and VOUT-
connected to L298N DC motor drivers and MG996R for providing stepped-up voltageVIN+
and VIN-
connected to 4 x AAA Battery Mount for input voltage5V
, 12V
, ENA
, ENB
, IN1
, IN2
, IN3
, IN4
connected to ESP32 for motor controlOUT1
, OUT2
, OUT3
, OUT4
connected to DC Motors for driving the motorsGND
connected to common groundSignal Line
connected to ESP32 (D18) for control signalVcc
connected to L298N DC motor driver (5V)GND
connected to common ground+
and -
connected to MT3608 modules for power supplypin 1
and pin 2
connected to L298N DC motor driver outputsGreen
, Yellow
, Red
connected to ESP32 for control signalsGND
connected to common groundThere is no code provided for the microcontrollers in the circuit. The code would typically include the initialization of the GPIO pins on the ESP32, the control logic for the traffic lights, and the PWM signals for the motor drivers and servo motor. Without the code, we cannot document the specific functionality or provide examples of how the ESP32 is programmed to interact with the other components in the circuit.