Nintendo Switch Pro Controller & Joy-Con Diagnostic Suite
Test Nintendo Switch Pro Controllers and Joy-Con pairs online. Measure analog stick drift circularity error %, HD Rumble haptics, and button matrix.
Controller Visualizer
Analog Sticks
Triggers
Vibration Test
Frequently Asked Questions (Nintendo Switch Pro Controller & Joy-Con Diagnostic Suite)
10-Item Technical FAQ & W3C Gamepad API Troubleshooting
How do I test Nintendo Switch Pro Controllers and Joy-Cons online?
Pair via Bluetooth or USB-C connection to your PC, then press any button to start diagnostic polling.
Why are Nintendo Switch Joy-Cons infamous for Joy-Con drift?
Compact slider potentiometers in Joy-Cons suffer rapid wear, shedding conductive graphite dust that causes phantom stick movement.
What is Nintendo Switch HD Rumble technology?
HD Rumble uses Linear Resonant Actuators (LRA) producing precise frequency vibrations ranging from subtle clicks to intense rumbles.
Does the Switch Pro Controller have analog triggers?
No, Switch Pro Controllers use digital click switches for ZL and ZR buttons, outputting instant 0% or 100% values.
What is the polling rate of Nintendo Switch Pro Controllers on PC?
Switch Pro Controllers poll at ~60Hz over Bluetooth and up to 250Hz over USB wired connection.
How do I test Joy-Con motion controls (gyroscope/accelerometer)?
Standard Gamepad API audits buttons and sticks; WebHID API accesses raw 6-axis IMU motion data.
Can I replace Joy-Con potentiometers with Hall Effect magnetic sticks?
Yes, aftermarket Hall Effect Joy-Con modules eliminate drift permanently.
Does this test work on Nintendo Switch Lite?
Connect Switch Lite via USB-C or Bluetooth controller pairing mode to test.
Why are A/B and X/Y face buttons swapped compared to Xbox layout?
Nintendo uses the classic SNES layout (A on right, B on bottom), opposite of Xbox XInput mapping; our tool shows true physical button indices.
How do I export my Nintendo Switch controller health passport?
Click 'Export Passport' to download a JSON certificate logging stick circularity and button state health.