I'm working on a small soil analyzer project using an Arduino Mini Pro, but I'm facing a limitation with the number of GND and VCC pins available. Ideally, I need an extra 2-3 pairs of these pins to complete my project. What are my options for extending these connections?
1 Answer
You can easily add more GND and VCC by pigtailing off the existing pins. Just connect multiple wires to each pin so they all tie together. This works great as long as everything can be powered on and off together. If you're using motors or other components that might cause interference, then consider some isolation, but otherwise, this method should suit your needs just fine!

Thank you! I'll solder them all together when I have a final working product.