Frequently Asked Questions (FAQ)

Please note: Sending SET_PIN PIN=_probe_ready VALUE=0 will, regardless of the situation, not cause the light on the sensor end to turn on. If the light is on or flashing, it indicates an issue with the wiring or configuration of the EN pin.

If the USB is connected to the computer and the light on the sensor end is constantly on or flashing, it means you have not connected the EN pin to the mainboard control, or there is a configuration issue.

If the USB is connected to the computer and the pressure value output by pressing the sensor sometimes increases and sometimes decreases: This is normal because the sensor can detect both positive and negative pressure values.

If the USB is connected to the computer, the displayed current pressure value has no relationship with the threshold. If the trigger pressure is too high, simply reduce the threshold setting.

Serial Debug Commands

After connecting to the FLY-Alps via serial port, you can use the following commands for debugging and configuration:

Common Commands

Command	Description	Example
set <value>	Set the trigger sensitivity threshold	set 20000 (lower values are more sensitive)
v	View the current ADC value	Outputs the ADC values before filtering (a) and after filtering (b)
uv	Stop continuous ADC value output	Halt real-time data refresh
rt	View the current sensitivity setting	Returns the currently configured threshold

Usage Instructions

1. Setting Sensitivity:

   • Use the set command followed by a numerical value, for example, set 20000
   • A lower value makes the sensor more sensitive and easier to trigger
   • A higher value requires more pressure to trigger

2. Real-time ADC Value Monitoring:

   • After sending the v command, the device will continuously output ADC values
   • The output format includes data before filtering (a) and after filtering (b)
   • Send the uv command to stop continuous output

3. Viewing Current Configuration:

   • Use the rt command to view the currently set sensitivity threshold

Tip

It is recommended to test different sensitivity settings using a serial tool before actual use to find the threshold that best suits your application scenario.