==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?===
*fitlet2 comes with a single RS232 ultra-mini com port (COM1)
*There is another COM ports inside the chassis (COM2) for the use of developing additional FACET cards.
*That The additional COM port is no not accessible externally whatsoever.
===What is the DC input voltage tolerance for the fitlet2?===
<br>This range can also be extended to 9V-36V if the model is configured with the P36 option.
==Software=What is the fitlet2's RTC backup battery accuracy?=== * RTC accuracy – less than 1 sec per day === How can I get S/PDIF to work on my fitlet2?===The fitlet2 3.5 Audio jack has a 4th pin that outputs digital audio.<br>In order for this to work, there's a need for a 4-pole 3.5mm to RCA cable.<br>This cable is sold in the set of cables package for the fitlet2 - [https://fit-iot.com/web/product/accenc-adflt2/ fitlet2 set of cables]
===Custom BIOS configurations for OPNsense=Software==
1. Download the FreeBSD release from https://www.freebsd.org===How Do I Enable Wake-On-Lan (WOL)?===
$ wget*Enter BIOS menu by hitting '''[ESC]''' on startup https*Navigate to://download.freebsd.org/ftp/releases/amd64/amd64/ISO Chipset Tab -IMAGES/11.1/FreeBSD-11.1> South Cluster Configuration -RELEASE-amd64-memstick.img> Miscellaneous Configuration * Wake on Lan should be there '''[Disabled]''' by default
2. Prepare bootable disk-*Enable Wake on-key (assuming /dev/sdX is your disk-on-key):Lan and Save&Exit by pressing '''[F4]'''
$ sudo dd if===FreeBSD-11.1-RELEASE-amd64-memstick.img ofis not working, what can I do?==/dev/sdX bs=1MB
3There are necessary configuration changes that should be made in order to have FreeBSD work on fitlet2. Necessary <br>Press '''[Del]''' during boot to enter BIOS settings changesand set the following to:
Press Chipset -> South Cluster Configuration -> SCC Configuration -> SCC SD Card Support '''[DelDisabled] during boot to enter BIOS settings:''' Chipset -> South Cluster Configuration -> SCC Configuration -> SCC eMMC Support '''[Disabled]''' Chipset -> South Cluster Configuration -> SCC Configuration -> SCC SDIO Support '''[Disabled]'''
Set Chipset -> OS Selection ===How to [Intel identify the COM port on Linux] Set Chipset -> SCC Configuration -> SCC SD Card Support (D27: F0) to [Disable] Set Chipset -> SCC Configuration -> SCC eMMC Support (D28: F0) to [Disable] Set Chipset -> SCC Configuration -> SCC UFS Support (D29: F0) to [Disable] Set Chipset -> SCC Configuration -> SCC SDIO Support (D30: F0) to [Disable]?===
4. Power on Please refer to the link- [[Linux Mint: Serial port on fitlet2, you will see boot process and "Welcome to FreBSD!" message.]]
=== Serial port on fitlet2 BIOS Legacy boot doesn't work, how to enable?===
Please refer to Legacy support is disabled by default in the below linkBIOS 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 : '''[Linux MintLegacy only]''' 3. Advanced -> CSM Configuration -> Network : Serial port on fitlet2'''[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'''
[[category:fitlet2]]
[[category:FAQ]]
