Signal Boy — WiFi survey tool
npx signalboyWalk your house and watch the WiFi move
Signal Boy is a local WiFi survey tool. Run one command, carry your laptop or phone around, and see exactly where the signal drops — on a retro Game Boy-style screen.
Fig. 01 — What it does
Signal Boy, in four lines
01
One command
npx signalboy — zero dependencies, nothing to install.
02
Steady readings
A Kalman filter settles the dBm reading and an EWMA keeps the sparkline live.
03
Every OS
Native backends for macOS, Windows and Linux.
04
Android app
A native Android app reads the phone's own radio for surveys on foot.
Fig. 02 — Also by Suryansh