✎ odroid-c2:application_note:application_note [ODROID Wiki]

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======= Application note ======
====== Connector Side ======
===== HDMI =====
  * [[http://forum.odroid.com/viewtopic.php?f=112&t=17774#p118897| HDMI Overscan setup]]
  * [[.software:auto_detect_display|Display Auto detection]]
  * [[hdmi_autosetting| HDMI PHY Manual Setting using modeline information]]
===== Adding External Connector =====
==== CVBS ====
[[.external_connector:cvbs|CVBS]]

==== S/PDIF ====
[[.external_connector:spdif|S/PDIF]]

==== Power Switch (J4) ====
[[.external_connector:power_switch|Power Switch]]

==== Alternative Power Input (J8) ====
[[.external_connector:alternative_power|Alternative Power Input]]

==== Alternative heartbeat LED ====
If you want to remap the blue heartbeat LED to other GPIO, refer this great instruction.

[[odroid-c2:application_note:external_connector:alternative_heartbeat_led|Alternative Heartbeat LED]]
====== Using Internal Peripherals ======
===== GPIO =====
  * [[.gpio:gpio_default_check_program|GPIO default check program]]
  * [[.gpio:enhancement_40pins|Access the 40pin GPIO on Linux/Ubuntu]]
  * [[.gpio:enhancement_40pins_on_android|Access the 40pin GPIO on Android]]
  * [[odroid-c2:application_note:app_launch_via_gpio_on_android|App launch via GPIO on Android]]
  * [[odroid-c2:application_note:gpio:gpio_key_wakeup|Power Off and Wake Up using GPIO Key Button]]
  * [[odroid-c2:application_note:app_launch_via_gpio_on_android|Android application launching with a GPIO trigger]]
  * [[odroid-c2:application_note:rotary-encoder_on_android|Rotary Encoder example on Android]]
  * [[odroid-c2:application_note:gpio:wiringpi|Wiring PI]]

Behind peripherals examples are controlled via the GPIO.
  * [[odroid-c2:application_note:gpio:i2c|I2C]]
  * [[odroid-c2:application_note:gpio:pwm|PWM]]
  * [[odroid-c2:application_note:gpio:uart|UART]]
  * [[odroid-c2:application_note:gpio:1wire|1-Wire]]
  * [[odroid-c2:application_note:gpio:adc|ADC]]
  * [[odroid-c2:application_note:gpio:irq|IRQ]]
  * [[odroid-c2:application_note:gpio:spi|SPI]]
  * [[.gpio:pps|PPS]]
  * [[.gpio:ir|IR]]
===== IR Remote =====
  * [[accessory:connectivity:ir_remote_controller|IR Remote Controller (Android)]]
  * [[odroid-c2:application_note:lirc| Support Custom Remote Controller with LIRC (IR RX) ]]
  * [[odroid-c2:application_note:gpio:ir| Support GPIO based IR Receiver (IR RX) ]]
  * [[odroid-c2:application_note:gpio:lirc_gpio_blaster| Support GPIO based IR Blaster (IR TX) ]]
  * [[odroid-c2:application_note:ir_wake_up| Wake Up after Power off using IR remote and HDMI CEC ]]
====== Software Side ======
  * [[odroid-c2:application_note:software:nfsboot| How-to boot Linux over NFS ]] 
  * [[odroid-c2:application_note:software:tftp| How-to boot Linux over TFTP (W.I.P.) ]] 
  * [[odroid-c2:application_note:software:board_identification|Board Identification]]
  * [[odroid-c2:application_note:software:ubuntu_cloud_virtualization| Running Ubuntu 16.04 Cloud image using KVM/ARM]] 
  * [[odroid-c2:application_note:software:bootlogo| Tips for Custom Boot Logo ]]
  * [[http://forum.odroid.com/viewtopic.php?f=139&t=19897#p131027| Blue LED off]]
  * [[https://codewalkerster.blogspot.kr/2016/09/how-to-use-odroid-like-bt-speaker.html|Make the ODROID Android as Bluetooth Audio receiver(Speaker)]]
  * [[odroid-c2:application_note:software:adjust_dram_clock| DDR clock adjustment by updating boot ]]
  * [[.software:set_cpu_freq| How to set max cpu frequency and cores]]
  * [[odroid-c2:application_note:software:watchdog_timer| Watchdog on Linux/Ubuntu]]
  * [[.software:persistent_bootini|boot.ini Configuration on Linux/Ubuntu]]
  * [[.software:turn_off_monitor| How to turn off your monitor]]
  * [[odroid-c2:application_note:software:android_auto|Android Auto]]
  * [[https://forum.odroid.com/viewtopic.php?f=137&t=29193|Building an Android TV box on a C2]]
===== kodi =====
  * [[.software:adjust_display_refresh_rate|Adjust Display refresh rate (Kodi)]]
  * [[.software:hdmi_passthrough| HDMI Passthrough (Kodi)]]