Super Debug Private Limited

The ESP32-CAM is a very small camera module with the ESP32-S. Besides the OV2640 camera, and several GPIOs to connect peripherals, it also features a microSD card slot that can be useful to store images taken with the camera or to store files to serve to clients

The ESP32-CAM doesn’t come with a USB connector, so you need an FTDI programmer to upload code through the U0R and U0T pins (serial pins).

Here is a list with the ESP32-CAM features:

• The smallest 802.11b/g/n Wi-Fi BT SoC module
• Low power 32-bit CPU,can also serve the application processor
• Up to 160MHz clock speed, summary computing power up to 600 DMIPS
• Built-in 520 KB SRAM, external 4MPSRAM
• Supports UART/SPI/I2C/PWM/ADC/DAC
• Support OV2640 and OV7670 cameras, built-in flash lamp
• Support image WiFI upload
• Support TF card
• Supports multiple sleep modes
• Embedded Lwip and FreeRTOS
• Supports STA/AP/STA+AP operation mode
• Support Smart Config/AirKiss technology
• Support for serial port local and remote firmware upgrades (FOTA)

In this example, we use Arduino IDE to program the ESP32-CAM board. So, you need to have Arduino IDE installed as well as the ESP32 add-on. Follow one of the next tutorials to install the ESP32 add-on, if you haven’t already.

If you’re getting any of the following errors, read our ESP32-CAM Troubleshooting Guide: Most Common Problems Fixed

• Failed to connect to ESP32: Timed out waiting for packet header
• Camera init failed with error 0x20001 or similar
• Brownout detector or Guru meditation error
• Sketch too big error – Wrong partition scheme selected
• Board at COMX is not available – COM Port Not Selected
• Psram error: GPIO isr service is not installed
• Weak Wi-Fi Signal
• No IP Address in Arduino IDE Serial Monitor
• Can’t open web server
• The image lags/shows lots of latency

The ESP32-CAM provides an inexpensive way to build more advanced home automation projects that feature video, taking photos, and face recognition.

• Microprocessor: 32-bit ARM Cortex M0 CPU,Micro-USB controller: This is controlled by a separate processor and presents the micro:bit to a computer as a memory stick
• A 5x5 LED matrix with 25 red LEDs to light up and can display animiated patterns, scrolling text and alphanumeric characters, Bluetooth Smart Technology.
• Two programmable buttons. Use them as a games controller, or control music on a smart phone, 20 pin edge connector
• On-board motion detector or 3-AXIS digital accelerometer that can detect movement e.g. shake, tilt or free-fall
• A built-in compass, 3D magnetometer to sense which direction you're facing and your movement in degrees and detect the presence of certain metals and magnets

This is a plug and play module based on Max3232 IC to convert RS232 level to TTL level easily. The board has got 2 LEDs which blinks during data receiving and transmitting process respectively.

Max3232 is a faster and pin compatible alternative of Max232. Max3232 also works on broader voltage range than Max232, starting from 3V to 5.5V making it suitable for projects involving either 3.3V or 5V logic.

• This module can be used to program STC microcontroller, STM32 microcontroller, NXP microcontroller, Renesas MCU, NEC microcontroller.

• Max3232 is a faster and pin compatible alternative of Max232

• Communication chip: MAX3232

• Working voltage: 3.3V - 5.5V

• This product is widely used in radio modification, mobile phone brushing, XBOX360 brushing machine, GPS, car detection, DVD brushing, hard disk repair, set-top box upgrade.

• It can be used to program STC microcontroller, STM32 microcontroller, NXP microcontroller, Renesas MCU, NEC microcontroller.

• Vcc - 3.3v - 5.5V

• Gnd - Gnd

• Tx - Transmit Pin

• Rx - Receive Pin

ESP32 is already integrated antenna and rf balun, power amplifier, low-noise amplifiers, filters, and power management module. The entire solution takes up the least amount of printed circuit board area. This board is used with 2. 4 ghz dual-mode wi-fi and bluetooth chips by tsmc 40nm low power technology, power and rf properties best, which is safe, reliable, and scalable to a variety of applications. Features: High performance-price ratio small volume, easily embeded to other products strong function with support lwip protocol, freertos supporting three modes: Ap, sta, and ap+sta supporting lua program, easily to develop.