I am connecting Raspberry pi3 model B to MAX7219 to display 8x8 leds. The connection does not seem difficult when everyone agrees that: VCC -> Pin 2 GND -> Pin 6 DIN -> Pin 19 CS -> Pin 24 CLK -> Pin 23 I also installed the library and enabled SPI on raspberry. However, when only VCC and GND are con...

Thanks for your help! I have solved the problem using a power switching circuit. Everything works pretty well.

I use arduino to control the hardware in my Raspberry project. Now I want to add a 2x3W 5V audio amplifier circuit to the project. But when I power the circuit with arduino nano, the arduino does not light the lamp anymore. The Arduino nano is currently powered from the Raspberry using usb uart. Is ...

I installed the SpeechRecognition as instructed at https://github.com/Uberi/speech_recognition 'pip install SpeechRecognition' Currently I use python 3.5 on my Raspberry Pi 3. The installation has no errors. The next part of the tutorial says that: "To quickly try it out, run 'python -m speech_recog...