> For the complete documentation index, see [llms.txt](https://bananapi.gitbook.io/bpi-m3/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bananapi.gitbook.io/bpi-m3/zh/bpim3irinterface.md).

# BPI-M3 IR interface

BPI-M3 support IR interface on board. you can use it as remote control.

**How to enable IR in BPI-M3 (Linux OS)**

Step 1: Insmod IR lib

```
$ sudo insmod /lib/modules/3.4.39-BPI-M3-Kernel/kernel/drivers/input/keyboard/sunxi-ir-rx.ko
```

Step 2: Turn on (IR debug mode)

```
$ cd /sys/module/sunxi_ir_rx/parameters
$ sudo su
$ echo 0xff > debug_mask
```

Step 3: Input IR keycode and check log

`$ dmesg`

```
[ 2797.200733] dcnt = 70 
[ 2797.200753] 351 active_delay = 128 
[ 2797.200772] 366 len = 153 
[ 2797.200795] IR code = 0x609ff708 
[ 2797.200821] IR RAW CODE : 159 
[ 2797.200903] IR CODE : 159 
[ 2797.201020] IR KEY VALE 159 
[ 2797.201047] ir_rx_irq_service: Rx Packet End, code=0x609ff708, ir_code=0x609
```

Ex: Open Browser (IR keycode=150)

![](/files/-M2HXHXufLTzU0BRrXGd)

demo to open Browser:

![](/files/-M2HXHXwNDLxKlQZ_puX)

Reference Key\_Map:

<https://www.redhat.com/archives/libvir-list/2011-May/msg01609.html>

**How to enable IR in BPI-M3 (Android)**

how to do check IR address on Android.

```
echo 0xff > /sys/module/sunxi_ir_rx/parameters

<7>[  625.998452] IR code = 0xf20d4040
<7>[  625.998473] IR RAW CODE : 13
<7>[  625.998542] IR CODE : 13
<7>[  625.998629] IR KEY VALE 13
<7>[  625.998653] ir_rx_irq_service: Rx Packet End, code=0xf20d4040, ir_code=0x 
<6>[  625.998717] cpus_wakeup_config_handler: address: 0x4040, powerkey: 0x0a
<6>[  626.002717] cpus_wakeup_config_handler: ok
```

BPI IR remoter control accessoires:

<https://bananapi.gitbooks.io/bpi-accessories/content/irremotecontrol.html>