siegmund asked 2 years ago
i have just acquire the esp32 cam ebook. I am working on the first project. Everything went seemly good. I got an ipadres but i do not get streaming images. in the serial monitor i am reading: “E(495) esp_core_dump_flash: no core dump partition found. What to do. Can someone help. thank you
Sara Santos Staff answered 2 years ago
Hi.
What board are you using and what board are you selecting in Tools > Board?
Regards,
Sara
siegmund answered 2 years ago
hi Sara, thank you for replying.I am using an esp32 S Cam Model nr: MH-RT LIVE ESP32. The TYPE : logic IC. and brandname: ANteersi. I am using an esp32 cam MB programmer. The module have an IPUS psram. For compiling and uploading i select AI THINKER. In the default setting of the CameraWebServer.ino script i had problem getting any picture. I am getting also the notification:”E(495) : esp_core_dump_flash: incorrect size of core dump image: 0″
and “E(332) psram: PSRAM ID read error : 0xffffffff.
So i have changed the config.jpeg_quality to 4; and
config.fb_count to 1 and FRAMESIZE to CIF.
Now i have streaming images (not so smooth, but…) i can take pictures and save them, the quality can be better.
But i still getting the error notifications.
I hope this will help to solve the problem
regards
siegmund
Sara Santos Staff answered 2 years ago
Hi.
Check the flash size options in Tools > Flash Size. It should be Huge App (No OTA).
Regards,
Sara
siegmund answered 2 years ago
Hi Sara, thank you for replying. The settings i have are:
flash frequencie: 80MHz
flash Mode: QIO
flash Scheme: Huge App(3 MB No OTA / 1 MB SPIFFS
regards
siegmund
Sara Santos Staff answered 2 years ago
Hi.
I’m not sure of it’s some difference in the PSRAM configuration of those boards…
Can you take a look at the following discussion and see if there is something the might help with the issue?
https://github.com/espressif/arduino-esp32/issues/6209
~See this suggestion: https://github.com/espressif/arduino-esp32/issues/6209#issuecomment-1211662491
Let me know if this helps.
Regards,
Sara
siegmund answered 2 years ago
Hi Sara, i am getting streaming images with other resolutions. jpeg=10, fb=2, screen: CIF.
But what i am still wondering is why the PSRAM is not found.
This is the technical specifications:
Overview
Reported item
ESP32-CAM-MB
Parameters:
Utilizes a dual-core 32-bit low-power CPU that can be used as an application processor.
The main frequency goes up to 240MHz, and the computing power can reach a maximum of 600 DMIPS.
Built-in 520KB SRAM, external 8MB PSRAM.
Supports UART/SPI/I2C/PWM/ADC/DAC and other interfaces.
Supports OV2640 and OV7670 cameras with a built-in flash.
Supports photo Wi-Fi uploading.
Supports TF card.
Supports multiple sleep modes.
Embedded LwIP and FreeRTOS.
Supports STA/AP/STA+AP work modes.
Supports Smart Config/AirKiss network configuration with one-click.
Supports secondary development.
Specifications:
Operating Voltage: 4.75-5.25V.
SPIFlash: Standard 32Mbit.
Internal RAM: 520KB + external 8MB PSRAM.
Wi-Fi: 802.11b/g/n/e/i.
Bluetooth: Bluetooth 4.2 BR/EDR and BLE standard.
Supported Interfaces (2Mbps): UART, SPI, I2C, PWM.
Supports TF card, maximum support 4G.
IO Ports: 9.
Standard Port Speed: 115200bps.
Spectrum Range: 2400 ~ 2483.5 MHz.
Antenna Shape: On-board PCB antenna, gain 2dBi.
Image Output Format: JPEG (OV2640 only), BMP, GRAYSCALE.
Package Method: DIP-16.
Transmission Power:
802.11b: 17 ± 2dBm (@ 11Mbps).
802.11g: 14 ± 2dBm (@ 54Mbps).
802.11n: 13 ± 2dBm (@ MCS7).
Receiving Sensitivity:
CCK, 1Mbps: -90dBm.
CCK, 11Mbps: -85dBm.
6Mbps (1/2BPSK): -88dBm.
54Mbps (3/4/64-QAM): -70dBm.
MCS7 (65Mbps, 72.2Mbps): -67dBm.
Power Consumption:
Turn off the flash: 180mA @ 5V.
Turn on the flash and adjust the brightness to the maximum: 310mA @ 5V.
Deep sleep: the lowest power consumption can reach 6mA @ 5V.
Modem-sleep: the lowest can reach 20mA @ 5V.
Light sleep: the lowest can reach 6.7mA @ 5V.
Security: WPA/WPA2/WPA2-Enterprise/WPS.
Operating Temperature: -20°C ~ 70°C.
Storage Environment: -40°C ~ 125°C, <90% RH.
Application:
Home smart device image transfer.
Wireless monitoring.
Smart agriculture.
QR wireless recognition.
Signal wireless positioning system.
And other IoT applications.
Specifications:
Package: DIP.
Customized: Yes.
Model Number: ESP32-CAM-MB.
Operating Temperature: -20°C ~ 70°C.
Dissipation Power: 1.
Supply Voltage: 4.75-5.25V.
Application: Computer.
Condition: New.
Type: Voltage Regulator.
Brand Name: Bolantedz.
Origin: Cn (Origin).g
The CameraWebServer example is the only script that i can run. The other scripts of the esp32 Cam ebook are unable to run
regards