The circuit in question is designed to control a peristaltic pump using an ESP32 microcontroller, which also interfaces with an ultrasonic sensor (HC-SR04), an infrared sensor, and an LED indicator. The power supply for the circuit is a 12V source, which is stepped down to 5V using an LM2596 step-down module to power the ESP32 and other 5V components. The L298N motor driver module is used to drive the peristaltic pump and is also powered by the 12V supply. The ESP32 controls the motor driver inputs and reads signals from the sensors to perform its intended functions.
+
, -
OUT-
, OUT+
, IN-
, IN+
+
, -
, EN
, VP
, VN
, D34
, D32
, D33
, D25
, D26
, D27
, D14
, D12
, D13
, D23
, D22
, TX0
, RX0
, D21
, D19
, D18
, D5
, D17
, D16
, D4
, D2
, D15
, VCC
, G
, 5V
, 3.3V
, V
OUT1
, OUT2
, 12V
, GND
, 5V
, OUT3
, OUT4
, 5V-ENA-JMP-I
, 5V-ENA-JMP-O
, +5V-J1
, +5V-J2
, ENA
, IN1
, IN2
, IN3
, IN4
, ENB
VCC
, TRIG
, ECHO
, GND
out
, gnd
, vcc
Coil1
, Coil2
cathode
, anode
+
connected to LM2596 IN+
and L298N 12V
-
connected to LM2596 IN-
and L298N GND
OUT-
connected to ESP32 G
OUT+
connected to ESP32 5V
D32
connected to L298N IN2
D33
connected to L298N IN1
D27
connected to HC-SR04 ECHO
D14
connected to HC-SR04 TRIG
D12
connected to IR Sensor out
D2
connected to LED cathode
3.3V
connected to HC-SR04 VCC
and IR Sensor vcc
G
connected to HC-SR04 GND
, IR Sensor gnd
, and LED anode
OUT1
connected to Peristaltic Pump Coil1
OUT2
connected to Peristaltic Pump Coil2
VCC
connected to ESP32 3.3V
TRIG
connected to ESP32 D14
ECHO
connected to ESP32 D27
GND
connected to ESP32 G
out
connected to ESP32 D12
vcc
connected to ESP32 3.3V
gnd
connected to ESP32 G
Coil1
connected to L298N OUT1
Coil2
connected to L298N OUT2
cathode
connected to ESP32 D2
anode
connected to ESP32 G
No code was provided for the microcontrollers in the circuit. The documentation of the code would typically include a description of the functionality, setup, and loop sections, along with any functions or libraries used to control the components and manage the logic of the circuit. Since no code is available, this section cannot be completed.