Welcome to my next blog post, today a very short piece about cable colors. In electronics, it is crucial to always check the polarization of cables, especially when dealing with power connections. The color coding can often be misleading, leading to potential issues if not verified correctly. I want to write about why standard assumptions do not always hold true in practical applications. This post covers a specific case involving drone camera power supplies where battery depletion during long flights necessitates external power sources. Through micro USB connections on flight controllers, we supply five volts and ground. However, relying solely on color labels can be dangerous. I will demonstrate how unusual configurations exist compared to standard red and black pairings. Always verifying polarity is essential to prevent equipment damage.