==Hardware==
===How to control fitlet2 front LEDsin Linux?===
==== <ins>For Linux</ins> ====See [[Application note - fitlet2 has 2 controlling front LEDs, LED1 and LED2. Each of them has GREEN and YELLOW parts that can be controlled separately. In on Linux kernel there are 4 related GPIOs: GPIO435, GPIO436, GPIO437, GPIO438.*GPIO435 - LED1 GREEN*GPIO436 - LED1 YELLOW*GPIO437 - LED2 GREEN*GPIO438 - LED2 YELLOW To control the GPIOs need to login as root (root password required): $ su Password: To control for example LED1 GREEN part: $ echo 435 > /sys/class/gpio/export $ echo out > /sys/class/gpio/gpio435/direction $ echo 1 > /sys/class/gpio/gpio435/value # LED1 should be GREEN now $ echo 0 > /sys/class/gpio/gpio435/value # LED1 should be OFF now $ echo 435 > /sys/class/gpio/unexport The GPIO framework and GPIO sysfs interface are documented inhttps://www.kernel.org/doc/Documentation/gpio/gpio.txt]]
===How do you I configure my cellular modem on Linux?===
<br>This range can also be extended to 9V-36V if the model is configured with the P36 option.
=== What is the fitlet2's RTC backup battery accuracy and lifetime?===
* RTC accuracy – less than 1 sec per day
* === How can I get S/PDIF to work on my fitlet2?===The lifetime of the RTC backup battery is fitlet2 3.5 yearsAudio jack has a 4th pin that outputs digital audio.<br>In order for this to work, depending on there's a need for a 4-pole 3.5mm to RCA cable.<br>This cable is sold in the use case set of cables package for the customerfitlet2 - [https://fit-iot.com/web/product/accenc-adflt2/ fitlet2 set of cables]
==Software==
=== FreeBSD is not working, what can I How doI Enable PXE boot?===
There are necessary configuration changes that should be made in order to have FreeBSD work * Enter BIOS menu by pressing "ESC" on fitlet2startup* Navigate to '''Advanced''' --> '''Network Stack Configuration'''* Set Network stack to '''[Enabled]'''* Configure boot option #1 to '''[Network]''' at Boot tab* Save changes and exit by pressing '''[F4]''' and accepting.
===How Do I Enable Wake-On-Lan (WOL)?===
Press *Enter BIOS menu by hitting '''[DelESC] during boot ''' on startup*Navigate to enter BIOS settings: Chipset Tab --> South Cluster Configuration --> Miscellaneous Configuration * Wake on Lan should be there '''[Disabled]''' by default
Set Chipset -*Enable Wake on Lan and Save&Exit by pressing '''[F4]''' === FreeBSD is not working, what can I do?=== There are necessary configuration changes that should be made in order to have FreeBSD work on fitlet2.<br> OS Selection to Press '''[Intel LinuxDel]''' during boot to enter BIOS settings and set the following to: Set Chipset -> South Cluster Configuration -> SCC Configuration -> SCC SD Card Support (D27: F0) to '''[DisableDisabled]''' Set Chipset -> South Cluster Configuration -> SCC Configuration -> SCC eMMC Support (D28: F0) to '''[DisableDisabled]''' Set Chipset -> SCC South Cluster Configuration -> SCC UFS Support (D29: F0) to [Disable] Set Chipset -> SCC Configuration -> SCC SDIO Support (D30: F0) to '''[DisableDisabled]'''
===How to identify the COM port on Linux ?===
Please refer to the link- [[Linux Mint: Serial port on fitlet2]]
===fitlet2 BIOS Legacy boot doesn't work, how to enable?===
Legacy support is disabled by default in the BIOS menu.<br>
To enable it, please, set the following BIOS menu settings:
1. Advanced -> CSM Configuration -> CSM Support : '''[Enabled]'''
2. Advanced -> CSM Configuration -> Boot option filter : '''[Legacy only]'''
3. Advanced -> CSM Configuration -> Network : '''[Legacy]'''
4. Advanced -> CSM Configuration -> Storage : '''[Legacy]'''
5. Advanced -> CSM Configuration -> Video : '''[Legacy]'''
6. Advanced -> CSM Configuration -> Other PCI devices : '''[Legacy]'''
7. Boot -> Boot Mode Selection : '''[Legacy]'''
8. Press the '''F4''' key to '''Save & Exit'''
=== Linux mint audio codecs do not load properly ===
* The BIOS configuration called "OS selection" at the main menu reflects on how the system loads the audio codecs.
* Changing the OS selection may result with strange sound card behavior, even when returning manually to previously selected option.
* Restoring the machine to its default values may fix this issue:
# Press [Del] during boot to enter BIOS setting
# Press F3 (Optimized Defaults) In the BIOS setting
# Keep the OS selection to Windows - Do not change.
## '''Note''': For Mint Box mini 2 machines, the default is set to "Linux" - Do not change.
# Press F4 (Save & Exit).
* At this point the machine should turn on with BIOS set to defaults and OS selection should be set to "Windows".
* This configuration can be kept for both Linux and Windows.
[[category:fitlet2]]
[[category:FAQ]]
