Electrical Layout Connection Guide

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ESP32-CAM1
Below is a suggested wiring update with explicit component names and the required connections. You can use the "Apply changes" button to incorporate these updates into your schematic.
Component List and Connections:

Table

ComponentPart Name & LinkFunction / Connection
12V Battery(Use a net label called Battery_12V)Supplies 12V to both motor driver and buck converter
L298N Motor DriverL298N Motor Driver- Motor supply connected to Battery_12V - Logic supply (if required) connected to 5V net
Buck ConverterAMS1117-5.0    Steps down 12V from Battery_12V to 5V
ESP32-CAM ModuleESP32-CAMReceives 5V from the buck converter output and interfaces with L298N through its GPIOs
Common Groundc2e41937-4268-256c-7ae9-cb8cfb60aed3All GND pins from ESP32-CAM, L298N, and battery negative → common ground net
Wiring Details:
  1. Power Connections:
    • Battery 12V Supply:
      • Label the battery’s positive terminal with Battery_12V.
      • Connect Battery_12V directly to the motor supply input of the L298N Motor Driver.
      • Also connect Battery_12V to the input of the AMS1117-5.0 buck converter.
    • Buck Converter (AMS1117-5.0):
      • The output of the AMS1117-5.0 should be labeled as 5V.
      • Connect this 5V net to the power input (VCC) of the ESP32-CAM.
      • If the L298N’s logic also requires 5V, connect the 5V net to its logic supply as well.
  2. Signal Connections between ESP32-CAM and L298N:
    • ESP32-CAM → L298N:
      • GPIO12 (ESP32-CAM) → IN1 on L298N.
      • GPIO13 (ESP32-CAM) → IN2 on L298N.
      • GPIO14 (ESP32-CAM) → IN3 on L298N.
      • GPIO15 (ESP32-CAM) → IN4 on L298N.
  3. Ground Connections:
Additional Notes:
  • Ensure that any required decoupling capacitors are added per the datasheet recommendations for the buck converter and both the L298N and ESP32-CAM modules.
  • Double-check that the L298N used matches the connection points for motor supply (12V) and logic (5V), as some variants could use separate feeds.
  • The above schematic changes assume you add or update these components into your project. You can modify the designators if needed.
Use the "Apply changes" button to update your schematic with these wiring and component connections.
Apply wiring changes
Integrate labeled components
Verify connection names
Review component connection list
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U1
ESP32-CAM1
IO16
+3V3
IO2
R5
Resistance
0 Ω
BOOT
ESP_EN
IO4
IO16
VBUS
IO2
R2
Resistance
1k Ω
ESP_RX
IO12
+5V
ESP_EN
VBUS
IO12
ESP_TX
R1
Resistance
Resistance
Resistance
5.1k Ω
CC2
IO13
USBDN
+5V
R4
Resistance
0 Ω
IO12
IO12
+5V
IO4
ESP_RX
IO4
ESP_EN
IO14
USBDN
+5V
USBDP
+3V3
+5V
BOOT
IO13
IO2
ESP_EN
IO15
+3V3
ESP_EN
IO15
BOOT
GND
CC1
IO15
USBDP
ESP_TX
IO15
+3V3
BOOT
IO13
+3V3
+3V3
ESP_RX
+3V3
+3V3
USBDP
IO16
IO14
ESP_RX
+5V
ESP_RX
USBDN
ESP_TX
IO2
ESP_TX
R3
Resistance
Resistance
Resistance
5.1k Ω
CC2
IO14
GND
IO13
+3V3
IO14
ESP_TX
BOOT
IO4
IO16
ESP_EN
D2
IC1
D4
C2
Capacitance
10u F
RST
C4
Capacitance
10u F
J3
J4
D3
LED1
C5
Capacitance
10u F
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ESP-CAM Motherboard Modules thumbnail
This project is a motherboard for the ESP32-CAM module, which enables easy and flexible WiFi camera applications. The motherboard provides power supply, programming interface, and GPIO expansion for the ESP32-CAM. It also supports external sensors for more functionality. #motherboard #WiFi #MCU #ReferenceDesign #project #ESP32 #camera #reusable #module #edgeComputing #espressif #template

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Distributor

Qty 1

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$0.03–$0.08

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$1.11–$2.40

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$1.53–$2.19

Mouser

$1.67

TME

$0.58

Verical

$0.39–$0.71

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