ESP32-CAM WiFi + Bluetooth Development Board IoT ESP ESP32 CAM With Camera Module OV2640 OV3660 for Arduino NODEMCU

**Basic troubleshooting**
1) Not able upload coding.
Solution :
A) Double check board manager and comport (Read more tutorial).
B) Must connect Cam IO0 to Cam GND ( Read tutorial. )

2) After done uploading, not able to get IP address.
Solution : 
A) Read more reference link, read all tutorial, and understand how esp32-cam work 1st.
B) Double check coding (the Camera Model choose CAMERA_MODEL_AI_THINKER)
C) Double check wifi name/ssid and password (Case sensitive , or use hotspot with short name and simple password). 
D) Connect with jumper wire from module to cam ( connect 4 PIN only).
a1) 5V to 5V on the board (or 3.3V to 3.3V).
b1) GND to GND.
c1) TXD orange cable to UOT on the board.
d1) RXD yellow cable to UOR on the board.

3) If you have ESP32 Libraries Errors : Downgrade to 1.0.5+- versions

https://randomnerdtutorials.com/esp32-cam-troubleshooting-guide/
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1. ESP32-CAM is a WIFI+ bluetooth dual-mode development board that uses PCB on-board antennas and cores based on ESP32 chips. It can work independently as a minimum system.
2. ESP integrates WiFi, traditional bluetooth and BLE Beacon, with 2 high-performance 32-bit LX6 CPUs, 7-stage pipeline architecture, main frequency adjustment range 80MHz to 240MHz, on-chip sensor, etc.
3. Fully compliant with WiFi 802.11b/g/n/e/i and bluetooth 4.2 standards, it can be used as a master mode to build an independent network controller, or as a slave to other host MCUs to add networking capabilities to existing devices.
4. ESP32-CAM can be widely used in various IoT applications. It is suitable for home smart devices, industrial wireless control, wireless monitoring, QR wireless identification, wireless positioning system signals and other IoT applications. It is an ideal solution for IoT applications.

Features:
- Ultra-small 802.11b/g/n Wi-Fi + BT/BLE SoC module
- Low-power dual-core 32-bit CPU for application processors
- Up to 240MHz, up to 600 DMIPS
- Built-in 520 KB SRAM, external 2M PSRAM
- Supports interfaces such as UART/SPI/I2C/PWM/ADC/DAC
- Support OV2640 /OV3660 and OV7670 cameras with built-in flash
- Support for images WiFI upload
- Support TF card
- Support multiple sleep modes
- Embedded Lwip and FreeRTOS
- Support STA/AP/STA+AP working mode
- Support Smart Config/AirKiss One-click distribution network
- Support for serial local upgrade and remote firmware upgrade (FOTA)

Package Included:
1 x ESP32-CAM Module
1 x Camera Module OV****(Random)
Optional Add On : USB Programmer Base (+RM10) 

Reference link:
https://randomnerdtutorials.com/esp32-cam-video-streaming-face-recognition-arduino-ide/
https://dronebotworkshop.com/esp32-cam-intro/
https://create.arduino.cc/projecthub/noah_arduino/using-esp32-cam-with-arduino-b4f12c
https://all3dp.com/2/esp32-cam-arduino-tutorial/#:~:text=Restart%20Arduino%20IDE%20and%20connect,AI%20Thinker%20ESP32%2DCAM%E2%80%9D.

ESP32-CAM + Board Reference Link : 
https://randomnerdtutorials.com/upload-code-esp32-cam-mb-usb/