Compiler error: 'HardWire' does not name a type about liveov7670_stm32

[kozuch]

Fixed by changing HardWire mWire(2); to TwoWire mWire(2);

Now I get error 4 (other error) at mWire.endTransmission() in setRegister function. mWire.write reports 1 byte written for both addr and val.

[stevstrong]

Please post the complete error messages.

[kozuch]

It now compiles without error, I get the error 4 value at runtime by printing it to serial - I put logging in CameraOV7670Registers.cpp in bool CameraOV7670Registers::setRegister(uint8_t addr, uint8_t val) function. mWire.endTransmission() simply returns 4 instead of 0. I guess this is an I2C problem. I am not sure if my camera is not dead, but I have 2 of them and both giving the same error. I think I connected everything correctly, additionally tried on camera the RESET pin to 3.3V and PWDN to ground, did not help.

I have a little different camera module than is usual - my camera is similar to the image on the left here, while the camera from the various videos is usually the one on the right: https://forum.arduino.cc/index.php?topic=535819.0

Exact photos of my camera:
https://photos.app.goo.gl/vUySrQZJQJDwMZvx5

[stevstrong]

I will check this soon.

[kozuch]

Thanks, but you don't have to any more. The problem was you used i2c bus #2 in code but your pin wiring uses bus #1. This code change fixes it:

TwoWire mWire(1);

Now the camera inits already.

[stevstrong]

9829eaf should fix it.