I have a simple question, and I want to ensure that nothing unexpected happens. I'm currently working on a Raspberry Pi-based robot project with a Pi camera, and I plan to power it with a battery, even if the battery only lasts for around 0.5 hours. For this, I intend to use two 18650 batteries connected in series along with a buck converter (LM2596) to step down the voltage to 5V.
While conducting my research, I came across two potential issues related to the buck converter:
Output Ripple: I initially considered using a 10uF capacitor to address this concern. However, I discovered that a 220uF capacitor is already included in the module, as shown in the picture, so I won't be adding any additional capacitor.
Electromagnetic Interference (EMI): To address this issue, I plan to enclose the entire buck converter in a box, as depicted in the image. This step is particularly important because the buck converter will be situated very close to the Raspberry Pi, and since I'll be using WiFi for communication, I want to avoid any potential interference with the communication signals.
I would like to confirm if everything seems in order, or if I may have missed something or if there's a better way to handle these concerns. Any insights or recommendations would be greatly appreciated.