Max number of connected modules?

Is there a maximum number of modules that can be powered by Arduino Uno simultaneously? Cause I have a Voice Recognition Module (1 +5, 1 GND), MQ2 Sensor (3 +5, 1 GND), 4 LEDs (4 GND), and an LCD (2 +5, 4 GND). When I powered it, the LCD stopped working so I change the order so that the LCD would be the first in line and then the Voice Recogniton and the MQ2 refused to work.

Without links to the datasheets for the modules and the LCD it is impossible to answer your question.

And, quite apart from the question of the power required, it is possible that the libraries for the different devices are incompatible with each other. So you also need to post your program.

...R

I just solved it thanks!

godsuave:
I just solved it thanks!

Glad to hear you have fixed it.

Please describe how you solved the problem for the benefit of other readers.

...R

godsuave:
first in line

What does that mean?