Switch bouncing reference traces for a variety of different switches

Summary

Switch bouncing traces This repository contains a collection of example traces showing switch bouncing behaviour. This may be useful if you want some quick reference data for implementing robust debouncing systems in your circuits and firmware. Devices tested Test conditions The switches were configured as pull-downs, i.e. opening the switch leaves the voltage a +5.0V, and closing the switch pulls the output voltage to ground. All traces were collected using the same procedure and equipment: Connect 5.0V to one terminal of the switch through a 10kΩ resistor. Connect 0.0V to the other terminal of the switch, directly. Measure voltage across the switch. 250MHz probe (x1) PicoScope 3206B recording at 8.93MSa/s 2V trigger, 1.5% hysteresis, 20% pre-trigger, both edges Press the button 32 times, resulting in 64 total traces (rising/falling edges) Approximately 8 presses in 1 second spacings (holding for momentary). Approximately 8 presses in rapid succession. Approximately 8 presses with light or glancing actuation. Approximately 8 presses with heavy force. If the switch is double-throw, record measurements for both the NO and NC contacts. Plots These plots show 32 opening and 32 closing actions on top of each other for each device. Remember that the switches were configured as pulldowns, so high voltage = open, low voltage = closed. Multicomp MC3813-011-01 Falling edge (switch closing) Rising edge (switch opening) Schurter 1301.9206 Falling edge (switch closing) Rising edge (switch opening) Schneider XB2-BW31B1C Falling edge (switch closing) Rising edge (switch opening) XKB Connection TC-1103-B-A Falling edge (switch closing) Rising edge (switch opening) Dailywell MPS22-A03FP-3-JR-3V Falling edge (switch closing) Rising edge (switch opening) Dailywell KPB22-8000-F10-324-JQ N/O falling edge (switch closing) N/O rising edge (switch opening) N/C falling edge (switch closing) N/C rising edge (switch opening) Lorin IRL-5-M-D-2 Falling edge (switch closing) Falling edge (switc...