1.Which seller did you purchase the product(s) from?
robotshop
2.The Model number of the product(s) you have purchased?
https://www.robotshop.com/eu/en/arducam-mini-camera-module-shield-5-mp-ov5642-arduino.html
3.Which Platform are you using the product(s) on?
arduino mini pro 3.3V 8Mhz, arduino mini pro 5V 16Mhz
4.Which instruction are you following?
your paper instruction manual,
5.Has your product ever worked properly?
yes, some times
6.What problems are you experiencing?
hello ArduGurus
we have a problem with ov5642 in our TROGLO project code were we run the camera with 3.3V power supply from a regulator but it seems that there is constantly errors when the system runs from a 3.3V Arduino 8Mhz. errors like there is no “Image save OK.” and there are not valid images stored in SD card.
is there a chance that the 8Mhz processor cant handle the right SPI bus speed ? or is it a problem with the voltage level ?
When a 5V pro mini 16Mhz runs the camera, things work correctly
bellow you see what serial monitor prints out running a sample code from examples “ArduCAM_Mini_5MP_Plus_4CAM_Capture2SD.ino”
Thank you very much in advance
Michail
Works with 5V Arduino MINI PRO (https://www.sparkfun.com/products/11113)
VCC (Camera, SD and Arduino) is on 5.0V
ArduCAM Start!
SPI1 interface OK.
SPI2 interface Error!
SPI3 interface Error!
SPI4 interface Error!
SD Card detected.
OV5642 detected.
start Capture
Capture Done.
The fifo length is :13880
Image save OK.
start Capture
Capture Done.
The fifo length is :13912
Image save OK.
start Capture
Capture Done.
The fifo length is :15464
Image save OK.
start Capture
Capture Done.
The fifo length is :13592
Image save OK.
==============================================
Does NOT work with 3.3V Arduino MINI PRO (https://www.sparkfun.com/products/11114)
VCC (Camera, SD and Arduino) is on 3.3V
ArduCAM Start!
SPI1 interface OK.
SPI2 interface Error!
SPI3 interface Error!
SPI4 interface Error!
SD Card detected.
OV5642 detected.
start Capture
Capture Done.
The fifo length is :7144
Image save OK.
start Capture
Capture Done.
The fifo length is :7352
Image save OK.
start Capture
Capture Done.
The fifo length is :7320
Image save OK.
start Capture
Capture Done.
The fifo length is :7016
start Capture
Capture Done.
The fifo length is :6872
start Capture
Capture Done.
The fifo length is :7032
start Capture
Capture Done.
The fifo length is :7112
7.What attempts at troubleshooting have you already made?
change arduino from OEM to Originals, tryed with different supply voltage levels, try different cameras OV5642 - OV5640,
8.How would you like us to help you?
suggest ways to ensure SPI reliable data transfer, advice on 3.3V operation, chip select issues that may cause problems, logic level issues with 3.3V operationg voltage