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Table of Contents
ODROID-C2
ODROID-C2 can be supplied its power through USB OTG port, which is a H/W hack for ODROID-C2. Since ODROID-C2 can consume current more than 500mA by itself while playing a video file or with some peripherals - keyboard/mouse/WiFi dongle - are attached to USB port, we strongly recommend to use 5V USB charger with minimal 700mA+ can be supplied.
Please note that still DC jack works with the same specification of ODROID-C2 apart from USB OTG for power supplying.
ODROID-C2
ODROID-C2 power can be provided through Micro USB instead of DC jack by connecting jumper J8.
Since MicroUSB connector have high contact resistance relatively than DC jack, there would be much more power loss.
If there is a USB device attached on USB host connector and consumes power a lot, the board might not be booted because the CPU can not be provided enough current. In order to prevent boot failure in such case, especially a USB device consumes a current more than 1A, we strongly recommend to keep providing power through DC jack.
Power On/Off switch
You can control power supplying to ODROID-C2 while DC adaptor is connected with external switch, Sliding or Toggle Switch for example, if you connect such switch to J4 on the board. J4 is connected to NCP372 (Protection IC). There is an ENABLE pin on the NCP372 and it is a low-active and have an internal pull-down resistor for default on.
| Switch status | Output of NCP372 | |
| ON(short) | OFF | |
| OFF(open) | ON (+5V) | |
With this hacking, we strongly recommend to shutdown the O/S completely before turn-off. Otherwise the file system could be damaged very easily. In Linux, for example, please make sure to execute shutdown -r now or poweroff.
IR Remote Controller (Android)
Manufacturer Code: 0x4DB2
| Button | IR code | Scancode | Android |
|---|---|---|---|
| Power | 0xDC | 116 | KEYCODE_POWER |
| Mute | 0x88 | 113 | KEYCODE_VOLUME_MUTE |
| Home | 0x82 | 102 | KEYCODE_HOME |
| OK | 0xCE | 97 | KEYCODE_DPAD_CENTER |
| Up | 0xCA | 103 | KEYCODE_DPAD_UP |
| Left | 0x99 | 105 | KEYCODE_DPAD_LEFT |
| Right | 0xC1 | 106 | KEYCODE_DPAD_RIGHT |
| Down | 0xD2 | 108 | KEYCODE_DPAD_DOWN |
| Menu | 0xC5 | 139 | KEYCODE_MENU |
| Back | 0x9A | 158 | KEYCODE_BACK |
| Volume Down | 0x81 | 109 | KEYCODE_VOLUME_DOWN |
| Volume Up | 0x80 | 104 | KEYCODE_VOLUME_UP |
