Mark Bolton asked 4 years ago
Ref : Complete project details at https://RandomNerdTutorials.com/esp32-cam-video-streaming-web-server-camera-home-assistant/
Can anyone cast some light on the problem I am getting uploading the sketch to my ESP32 Cam? I have tried all the options since it is not clear what precise CAM it is.
The board I have selected in the ArduinoIDE is the AI Thinker CAM.
I also installed esptools via the command line.
Thanks in Advance.
……………………………………………………………………………………………………………………………………………………
Sketch uses 849333 bytes (26%) of program storage space. Maximum is 3145728 bytes.
Global variables use 44852 bytes (13%) of dynamic memory, leaving 282828 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.1
Serial port /dev/ttyUSB0
Connecting….
Chip is ESP32-D0WD (revision 1)
Features: WiFi, BT, Dual Core, 240MHz, VRef calibration in efuse, Coding Scheme None
Crystal is 40MHz
MAC: f4:cf:a2:98:0e:2c
Uploading stub…
A fatal error occurred: Invalid head of packet (0x65)
A fatal error occurred: Invalid head of packet (0x65)
Sara Santos Staff answered 4 years ago
Hi Mark.
How are you powering your ESP32-CAM board?
How are you connecting it to your computer?
Does it print a lot of dots on the debugging window before throwing out the error?
Regards,
Sara
Mark Bolton answered 4 years ago
I was using a short USB cable to my NUC , a usb to serial board , then some header leads onto the ESP 32 Cams.
I shelved the project and a new package of boards arrived the otherday with a USB to serial “shield” style interface board. They both just worked straight out of the tin.
Unresolved so far.
Thank you for your help.
M
Sara Santos Staff answered 4 years ago
Great!
I’m glad everything is working now.
I’ll mark this issue as resolved.
If you need further help, you just need to open a new question in our forum.
Regards,
Sara
Mark Bolton answered 4 years ago
Hi Sara,
My gut feel is that there is some power sag / brownout / type issue. I tried two cams and a few USB cables as well as another serial board. At some point you need to cut your losses. The sunk cost fallacy isnt really an issue here where the dollar cost is so hilariously inexpensive. If you had sent an ESP 32 CAM back in time to me in the 80s and asked me to suggest the cost of the component I would be out by a factor of a cuppla hundred. It is time that is the precious resource.
Cheers
M
Sara Santos Staff answered 4 years ago
Yes, you are right.
Time is the most precious resource.
Regards,
Sara