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                                            BillyBee123

"SPI Interface Error"/"ACK CMD SPI interface Error! END" using Uno, Mini 2MP Plus, standard wiring, ArduCAM_Mini_2MP_Plus_functions

I've had this error before while working with ArduCAM example code for my NodeMCU ESP8266 board. I had to unplug the USB cable to fully power down the MCU, then...

"SPI Interface Error"/"ACK CMD SPI interface Error! END" using Uno, Mini 2MP Plus, standard wiring, ArduCAM_Mini_2MP_Plus_functions

The i2c_scanner tests the I2C bus, rather than the SPI bus, but ArduCAM uses both. If you can't read the I2C address of the ArduCAM, there's a problem with either...