Hi All. I have been using Arduino since long. I am right now working on ESP32-CAM to capture image and store in the memory card. The steps I have taken are :
I am using an FTDI USB to TTL Converter to let communicate PC with ESP32-CAM through Arduino IDE, the connections are as per below : USB to TTLESP32-CAM
Vcc Vcc
Gnd Gnd
Tx Rx
Rx Tx
Note : I have connected the IO0 pin of ESP32-CAM to Gnd to let it get flashed.
I have opened the File->Examples->ESP32->Camera->CameraWebServer code and set the Board to ESP32 Wrover Module with Partition Scheme Huge App (3 MB No OTA/1 MB SPIFFS) (Every other Partition scheme setting was throwing compilation errors) with setting camera in the code as CAMERA_MODEL_WROVER_KIT
When I compile the code with my ssid and password, the code gets compiled successfully, but when I upload it, following happens :
Using library WiFi at version 1.0 in folder: C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6\libraries\WiFi
"C:\\Users\\Shaunak\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\xtensa-esp32-elf-gcc\\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-size" -A "C:\\Users\\Shaunak\\AppData\\Local\\Temp\\arduino_build_833798/CameraWebServer.ino.elf"
Sketch uses 2594790 bytes (82%) of program storage space. Maximum is 3145728 bytes.
Global variables use 56256 bytes (17%) of dynamic memory, leaving 271424 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.0-dev
Serial port COM4
Connecting........_____....._____....._____....._____....._____....._____....._____
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
When I open the press the "Reset" Pin, I get the following data :
The first two of the last three lines of this output show the memory that the memory card that I have plugged has, and the PSRAM Failure in initializing.
4. The same errors retain when I set the board selection to AI Thinker ESP-32 CAM and camera as CAMERA_MODEL_AI_THINKER
The ESP32 CAM (WROOM) already has the 4MB of PSRAM RAM it needs to run. I'm sure you do not need to plug in a memory card if you are using the proper ESP32CAM.
I did not see the normal message sequence of upload a program to the ESP32 CAM.
After the jumper is in place, then press the button, the ESP32CAM will give a message that it is ready for upload. Then start the upload.
That tells me your program tried to read a memory address that is not there.
Install the ESP Exception decoder and use it, look it up on the internet.
Post a pick of your setup. Especially how you've plugged in a memory card.
I did not see the normal message sequence of upload a program to the ESP32 CAM.
After the jumper is in place, then press the button, the ESP32CAM will give a message that it is ready for upload. Then start the upload.
I do not get after pressing the reset button before uploading. There is only one button (Reset Button) on my ESP32 CAM.
Install the ESP Exception decoder and use it, look it up on the internet.
Can you please provide the link as I am completely new to it? I do not want to get misdirected.
The booting sequence goes like this (assuming VCC, GND, RX and TX are all connected):
Connect IO0 to GND while unplugged from computer
Plug programmer in to computer
Press the RST button on the ESP (you should get a "ready for upload" print on the serial monitor)
Upload program
If the waiting for upload message does not appear then no work. In other words the ESP32CAM must indicate it is ready for upload before selecting to upload the program in the IDE.
I see that the flash LED is on in your photo. The default is off.
Could you post an image of the pin side of the connection points?
On another note, I have tried several FTDI modules to find they do not all work the same. I went through several FTDI's modules till I got one to work.
Remove the SD card
Connect the Vcc from the FTDI to the 5 V pin on the ESP CAM (not the Vcc pin)
Try a simple blink sketch
//Led is on the reset button side of the board
void setup() {
pinMode(33, OUTPUT);
}
void loop() {
digitalWrite(33, LOW);//on
delay (1000);
digitalWrite(33, HIGH);//off
delay (1000);
}
The ESP seems defective. I will try to arrange a new one. Also, I am planning to buy CP2102 instead of FTDI. I will update you when I will get and test with them.
Connections USB to TTLESP32-CAM
Vcc Vcc
Gnd Gnd
Tx Rx
Rx Tx
Green wire is for Vcc (5V)
Black wire is for Ground
Yellow and Blue wires are for communication
White wire connects IO0 to Ground
Note : I have connected the IO0 pin of ESP32-CAM to Gnd to let it get flashed.
Then I took the following steps :
Opened the serial monitor and pressed the RESET button
The output is as below :
ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download
2. Then I minimize the serial monitor and press the **Upload** button. The Arduino informs **Done Uploading**.
Here is the output of Error Console (I am sharing what is important to me as I can not share entire due to forum character limit) :
-> candidates: [WiFi@2.0.0 WiFi@1.0]
"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10816 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD="ESP32_DEV"" "-DARDUINO_VARIANT="esp32"" -DESP32 -DCORE_DEBUG_LEVEL=0 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue "-IC:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10816 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD="ESP32_DEV"" "-DARDUINO_VARIANT="esp32"" -DESP32 -DCORE_DEBUG_LEVEL=0 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue "-"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/include/config" "-"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-IC:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10816 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD="ESP32_DEV"" "-DARDUINO_VARIANT="esp32"" -DESP32 -DCORE_DEBUG_LEVEL=0 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue "-IC:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-32\1.0.6\libraries\WiFi\src\WiFiSTA.cpp" -o nul
"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-32\1.0.6/tools/sdk/include/fb_gfx" -std=gnu++11 -Os -g3 -Wpointer-arith -fexceptions -fstack-protector -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -mlongcalls -nostdlib -w -Wno-error=maybe-uninitialized -Wno-error=unused-function -Wno-error=unused-but-set-variable -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wno-unused-parameter -Wno-unused-but-set-parameter -Wno-missing-field-initializers -Wno-sign-compare -fno-rtti -c -w -x c++ -E -CC -DF_CPU=240000000L -DARDUINO=10816 -DARDUINO_ESP32_DEV -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD="ESP32_DEV"" "-DARDUINO_VARIANT="esp32"" -DESP32 -DCORE_DEBUG_LEVEL=0 -DBOARD_HAS_PSRAM -mfix-esp32-psram-cache-issue "-"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-g++" -DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-Generating function prototypes...
DESP_PLATFORM "-DMBEDTLS_CONFIG_FILE="mbedtls/esp_config.h"" -DHAVE_CONFIG_H -DGCC_NOT_5_2_0=0 -DWITH_POSIX "-"C:\Users\Shaunak\AppData\Local\Temp\arduino_build_315154/CameraWebServer.ino.elf"
esptool.py v3.0-dev
"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6/tools/gen_esp32part.exe" -q "C:\Users\Shaunak\AppData\Local\Temp\arduino_build_315154/partitions.csv" "C:\Users\Shaunak\AppData\Local\Temp\arduino_build_315154/CameraWebServer.ino.partitions.bin"
Multiple libraries were found for "WiFi.h"
Used: C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
Using library WiFi at version 1.0 in folder: C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6\libraries\WiFi
"C:\Users\Shaunak\AppData\Local\Arduino15\packages\esp32\tools\xtensa-esp32-elf-gcc\1.22.0-97-gc752ad5-5.2.0/bin/xtensa-esp32-elf-size" -A "C:\Users\Shaunak\AppData\Local\Temp\arduino_build_315154/CameraWebServer.ino.elf"
Sketch uses 2594790 bytes (82%) of program storage space. Maximum is 3145728 bytes.
Global variables use 56256 bytes (17%) of dynamic memory, leaving 271424 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.0-dev
Serial port COM8
Connecting....
Chip is ESP32-D0WDQ6 (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: 3c:61:05:17:8f:e0
Uploading stub...
Running stub...
Stub running...
Changing baud rate to 460800
Changed.
Configuring flash size...
Auto-detected Flash size: 4MB
Compressed 8192 bytes to 47...
Writing at 0x0000e000... (100 %)
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.0 seconds (effective 4096.0 kbit/s)...
Hash of data verified.
Compressed 18656 bytes to 12053...
Writing at 0x00001000... (100 %)
Wrote 18656 bytes (12053 compressed) at 0x00001000 in 0.3 seconds (effective 502.5 kbit/s)...
Hash of data verified.
Compressed 2594912 bytes to 2073527...
Writing at 0x00010000... (0 %)
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Wrote 2594912 bytes (2073527 compressed) at 0x00010000 in 50.1 seconds (effective 414.6 kbit/s)...
Hash of data verified.
Compressed 3072 bytes to 119...
Writing at 0x00008000... (100 %)
Wrote 3072 bytes (119 compressed) at 0x00008000 in 0.0 seconds (effective 1638.4 kbit/s)...
Hash of data verified.
I resolved the issue that was challenging my patience.
Here is what I did :
I removed the connection between IO0 pin and Gnd
I opened the serial monitor of Arduino IDE.
I pressed the on-board RESET button that gave the following output :
ets Jun 8 2016 00:22:57
rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371
ets Jun 8 2016 00:22:57
rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:10944
load:0x40080400,len:6388
entry 0x400806b4
.....
WiFi connected
Starting web server on port: '80'
Starting stream server on port: '81'
Camera Ready! Use 'http://192.168.43.40' to connect
I entered the URL 'http://192.168.43.40' and saw the default webpage of ESP32 CAM. I kept settings as they were and clicked the "Get Still" button. Here is the screenshot :
