A low effort .1-2.5 GHz dBm power meter

摘要

This is a very low-effort project when you use a transparent acrylic enclosure (from say The Container Store) since you merely glue the LCD panel to the inside front wall with four tiny dabs of Loctite super glue. Drilling the acrylic for the SMA and on-off switch is a matter of seconds. The 9-V battery and Arduino Nano are secured with hook-and-loop strips, and all connections are made with 4-inch breadboard jumper wires. See Figures 2 and 3.