Hi,

I've been working with interfacing a beaglebone green with an LVDS transceiver chip where I needed to use a GPIO pin to select either READ_ENABLE or WRITE_ENABLE for half duplex communication. I had decided to use P9_28. It wouldn't function at all when I looked up the documentation for the beaglebone green regarding which GPIO pin P9_28 was. Your documentation claims it to be GPIO_123. To be clear, I'm referencing the wiki page found at http://wiki.seeed.cc/BeagleBone_Green/ under the section labelled "Pin Map". The beaglebone black documentation claims P9_28 is GPIO_113. I thought perhaps the pins were named differently from green to black, but when I tried setting it up as GPIO_113 it worked perfectly.

No support for mega/arduino uno!

I'm using the Loudness sensor to detect environmental volume.
I've started using it with the groovepi, via python from the raspii to monitor the environment continually. I've noticed that it doesn't reliably deliver a good signal so I started digging deeper.

I found that the Lotus is really compareable to the grovepi, so I wanted to retry with it, put a usual level converter to attach it to the Raspi I2C, and it worked with the grovepi firmware. However, the values delivered from the loudness sensor were even less reliable.

I've retried using the lotus alone with usb attached to a host and the values output would be reliable. But, even once I would connect the i2c (without even using it) the values would become unreliable again.

When I simply attach a pot to the analog in to the lotus or the grovepi it will give reliable values..

So, my assumption is, that the digital i2c couples into the loudness sensor and voids its values. Please advise whether there is an easy way to fix the sensor.

http://wiki.seeed.cc/Grove-Serial_Bluetooth/ has tables that don't format properly, e.g. "Set working MODE". None of the four Resources files are available, all are 404. http://wiki.seeed.cc/Grove-Serial_Bluetooth/#resources

Hi,

I need help in programming the sensor. The ISR section of the example code for Grove_Air_Quality_Sensor_v1.3 does not compile. Any idea?

Thanks!

They are updating Bihar Land Recods day by day.

http://wiki.seeed.cc/Xadow_M0/

This link is missing

I'm curious to know what exactly is the value that the sensor is giving out(Since we don't know the GSR circuit that is used in the sensor)

The PINMAP_SPI.png for the BeagleBone green documentation lists both P9.19 and P9.42 as SPI1_CS1. Presumably one of these is SPI0_CS1 actually, since that doesn't otherwise appear.

i get acceX value: 23(16int)

how value convert to g

Hi,

could you please provide an example how the TinyGPSPlus library (described at https://learn.sparkfun.com/tutorials/gps-shield-hookup-guide ) can be used with the GPS output of the Seeeduino LoRaWan w/GPS? ( http://wiki.seeed.cc/Seeeduino_LoRAWAN/ )

--> since I want to get readable GPS output, but didn't get it to work.

Kind regards,

Daniel

I followed the sets of commands given in following article
http://wiki.seeed.cc/ReSpeaker_4_Mic_Array_for_Raspberry_Pi/

But after being done with the commands. No Status code 204 is received after running
"python ns_kws_doa_alexa_with_light.py"

Please help me to find the issue.

Following is the log file.........

ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.front
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.rear
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.center_lfe
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.side
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround21
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround40
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround41
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround50
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround51
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.surround71
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.iec958
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.hdmi
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.modem
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM cards.pcm.phoneline
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4996:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM bluealsa
ALSA lib confmisc.c:1281:(snd_func_refer) Unable to find definition 'defaults.bluealsa.device'
ALSA lib conf.c:4528:(_snd_config_evaluate) function snd_func_refer returned error: No such file or directory
ALSA lib conf.c:4996:(snd_config_expand) Args evaluate error: No such file or directory
ALSA lib pcm.c:2495:(snd_pcm_open_noupdate) Unknown PCM bluealsa
ALSA lib pcm_dmix.c:990:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_dmix.c:990:(snd_pcm_dmix_open) The dmix plugin supports only playback stream
ALSA lib pcm_ac108.c:469:(_snd_pcm_ac108_open) a108 is only for capture
connect(2) call to /tmp/jack-1000/default/jack_0 failed (err=No such file or directory)
attempt to connect to server failed
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:0:bcm2835 ALSA: - (hw:0,0) with 0 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:1:bcm2835 ALSA: IEC958/HDMI (hw:0,1) with 0 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:2:seeed-4mic-voicecard: - (hw:1,0) with 2 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:3:sysdefault with 0 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:4:playback with 0 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:5:dmixed with 0 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:6:ac108 with 4 input channels
INFO:/home/pi/env/local/lib/python2.7/site-packages/voice_engine-0.0.3-py2.7.egg/voice_engine/source.pyc:Use ac108
INFO:avs.alexa:Refreshing access_token
DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1): api.amazon.com
DEBUG:urllib3.connectionpool:https://api.amazon.com:443 "POST /auth/o2/token HTTP/1.1" 200 977
DEBUG:avs.alexa:{
"product_id": "ReSpeaker",
"access_token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"refresh_url": "https://api.amazon.com/auth/o2/token",
"expiry": "Thu Dec 07 12:49:45 2017",
"api": "v20160207",
"client_id": "amzn1.application-oa2-client.xxxxxxxxxxxxxxxxxxxxxxxxxx",
"host_url": "avs-alexa-na.amazon.com",
"client_secret": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"refresh_token": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}
DEBUG:hyper.http20.connection:Selected NPN protocol: h2
DEBUG:hyper.http20.connection:recv for stream 0 with set([]) already present
INFO:hyper.http20.connection:Received unhandled event <RemoteSettingsChanged changed_settings:{ChangedSetting(setting=SettingCodes.MAX_CONCURRENT_STREAMS, original_value=None, new_value=100), ChangedSetting(setting=SettingCodes.INITIAL_WINDOW_SIZE, original_value=65535, new_value=2147483647), ChangedSetting(setting=SettingCodes.max_header_list_size, original_value=None, new_value=40960)}>
INFO:hyper.http20.connection:Received unhandled event <WindowUpdated stream_id:0, delta:2147418112>
DEBUG:hpack.hpack:HPACK encoding <generator object inner at 0x73e4ac88>
DEBUG:hpack.hpack:Adding (':method', 'GET') to the header table
ALSA lib pcm.c:8306:(snd_pcm_recover) overrun occurred
DEBUG:hpack.hpack:Encoding 2 with 7 bits
DEBUG:hpack.hpack:Adding (':scheme', 'https') to the header table
DEBUG:hpack.hpack:Encoding 7 with 7 bits
DEBUG:hpack.hpack:Adding (':authority', 'avs-alexa-na.amazon.com') to the header table
DEBUG:hpack.hpack:Encoding 1 with 6 bits
DEBUG:hpack.hpack:Encoding 17 with 7 bits
DEBUG:hpack.hpack:Adding (':path', '/v20160207/directives') to the header table
DEBUG:hpack.hpack:Encoding 4 with 6 bits
DEBUG:hpack.hpack:Encoding 15 with 7 bits
DEBUG:hpack.hpack:Adding ('authorization', 'Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx') to the header table
DEBUG:hpack.hpack:Encoding 23 with 4 bits
DEBUG:hpack.hpack:Encoding 474 with 7 bits
DEBUG:hpack.hpack:Encoded header block to ��A��t,:
�kT5�H����z�D��� :Ć��I�������Q�[��>��2x�w&Z��RpŲ�d����gl2{�����(���{6���Vtلz����U������ii̋%�I�ʍ���q��{/���إg6�l����~���1�k�����������͎Д�?W������&�ut{�5�
�O��n��o�f�sg)|���g纟ވl�;4���tMژ�F�y��E�s�ڰ����˶O�:ͨ�|���^�mr^"�
Y����lכVP6���ǫ$��-��p�O#~�߽�������[����zeoe����������ѥ�)ܣ�����+����W�o��ڒ���vJ{���}E�??�1X�+vF�<�,�ͺb� �;gf��ӣV����;�;����g��çk �)EӮH�����O>|;��T��E�0mK;,)�{A�U���߿Q�FyÛoK�۵���;��e����P�WNhݮ�f DEBUG:hyper.http20.connection:recv for stream 1 with set([]) already present INFO:hyper.http20.connection:Received unhandled event <SettingsAcknowledged changed_settings:{ChangedSetting(setting=SettingCodes.ENABLE_PUSH, original_value=1, new_value=0)}> INFO:hyper.http20.connection:Received unhandled event <SettingsAcknowledged changed_settings:{}> DEBUG:hyper.http20.connection:recv for stream 1 with set([]) already present DEBUG:hpack.hpack:Decoding �T�*@�����R����BM'���tOK,�fBH�K�DrE�����.1���"��k9#/F%��H�mR�P,��,��$��Q>�,��� A�ǩ= DEBUG:hpack.hpack:Decoded 8, consumed 1 bytes DEBUG:hpack.hpack:Decoded (':status', '200'), consumed 1 DEBUG:hpack.hpack:Decoded 20, consumed 1 bytes DEBUG:hpack.hpack:Decoded 1, consumed 1 bytes DEBUG:hpack.hpack:Decoded ('access-control-allow-origin', <memory at 0x73eb4f80>), total consumed 3 bytes, indexed True DEBUG:hpack.hpack:Decoded 12, consumed 1 bytes DEBUG:hpack.hpack:Decoded 44, consumed 1 bytes DEBUG:hpack.hpack:Decoded ('x-amzn-requestid', '06c728fffe3dcd94-00004c6d-0000c350-3d16aba23a82e67b-6d39ad0b-1'), total consumed 59 bytes, indexed True DEBUG:hpack.hpack:Decoded 31, consumed 1 bytes DEBUG:hpack.hpack:Decoded 47, consumed 1 bytes DEBUG:hpack.hpack:Decoded ('content-type', 'multipart/related; boundary=------abcde123; type=application/json'), total consumed 49 bytes, indexed True INFO:hyper.http20.connection:Received unhandled event <PriorityUpdated stream_id:1, weight:16, depends_on:0, exclusive:False> DEBUG:hpack.hpack:HPACK encoding <generator object inner at 0x73e5c210> DEBUG:hpack.hpack:Adding (':method', 'POST') to the header table DEBUG:hpack.hpack:Encoding 3 with 7 bits DEBUG:hpack.hpack:Adding (':scheme', 'https') to the header table DEBUG:hpack.hpack:Encoding 7 with 7 bits DEBUG:hpack.hpack:Adding (':authority', 'avs-alexa-na.amazon.com') to the header table DEBUG:hpack.hpack:Encoding 63 with 7 bits DEBUG:hpack.hpack:Adding (':path', '/v20160207/events') to the header table DEBUG:hpack.hpack:Encoding 4 with 6 bits DEBUG:hpack.hpack:Encoding 12 with 7 bits DEBUG:hpack.hpack:Adding ('content-type', 'multipart/form-data; boundary=seeed-voice-engine') to the header table DEBUG:hpack.hpack:Encoding 31 with 6 bits DEBUG:hpack.hpack:Encoding 34 with 7 bits DEBUG:hpack.hpack:Adding ('authorization', 'Bearer xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx') to the header table DEBUG:hpack.hpack:Encoding 23 with 4 bits DEBUG:hpack.hpack:Encoding 474 with 7 bits DEBUG:hpack.hpack:Encoded header block to ���D�c��� :�{���_����j�bX��R��H�Ԍ�� ��� Rȷs��X�Lj�����Q�[��>��2x�w&Z��RpŲ�d����gl2{�����(���{6���Vtلz����U������ii̋%�I�ʍ���q��{/���إg6�l����~���1�k�����������͎Д�?W������&�ut{�5� �O��n��o�f�sg)|���g纟ވl�;4���tMژ�F�y��E�s�ڰ����˶O�:ͨ�|���^�mr^"���u���������6 Y����lכVP6���ǫ$��-��p�O#~�߽�������[����zeoe����������ѥ�)ܣ�����+����W�o��ڒ���vJ{���}E�??�1X�+vF�<�,�ͺb� �;gf��ӣV����;�;����g��çk �)EӮH�����O>|;��T��E�0mK;,)�{A�U���߿Q�FyÛoK�۵���;��e����P�WNhݮ�f
DEBUG:avs.alexa:metadata: {
"event": {
"header": {
"namespace": "System",
"name": "SynchronizeState",
"messageId": "65a2d68cece747bd8b4f0fa40936e073"
},
"payload": {}
},
"context": [
{
"header": {
"namespace": "SpeechSynthesizer",
"name": "SpeechState"
},
"payload": {
"token": "",
"playerActivity": "FINISHED",
"offsetInMilliseconds": 0
}
},
{
"header": {
"namespace": "Speaker",
"name": "VolumeState"
},
"payload": {
"volume": 50,
"muted": false
}
},
{
"header": {
"namespace": "AudioPlayer",
"name": "PlaybackState"
},
"payload": {
"token": "",
"playerActivity": "IDLE",
"offsetInMilliseconds": 0
}
},
{
"header": {
"namespace": "Alerts",
"name": "AlertsState"
},
"payload": {
"allAlerts": [],
"activeAlerts": []
}
}
]
}
INFO:avs.alexa:wait for response
DEBUG:hyper.http20.connection:recv for stream 3 with set([1]) already present
%��3�T���ck.hpack:Decoding ������tOK,�fBH�K�DrE�����.1���"��k9#/F�?_Ħ��j�bX��
&=LtA��� ,��,8�!B&~Бؘ)*G �5��D��p/��}��e���u�b
DEBUG:hpack.hpack:Decoded 8, consumed 1 bytes
DEBUG:hpack.hpack:Decoded (':status', '200'), consumed 1
DEBUG:hpack.hpack:Decoded 64, consumed 1 bytes
DEBUG:hpack.hpack:Decoded ('access-control-allow-origin', <memory at 0x73eb4f80>), consumed 1
DEBUG:hpack.hpack:Decoded 63, consumed 2 bytes
DEBUG:hpack.hpack:Decoded 44, consumed 1 bytes
DEBUG:hpack.hpack:Decoded ('x-amzn-requestid', '06c728fffe3dcd94-00004c6d-0000c350-3d16aba23a82e67b-6d39ad0b-3'), total consumed 47 bytes, indexed True
DEBUG:hpack.hpack:Decoded 31, consumed 1 bytes
DEBUG:hpack.hpack:Decoded 68, consumed 1 bytes
DEBUG:hpack.hpack:Decoded ('content-type', 'multipart/related;boundary=------abcde123;start=metadata.1512627619030;type="application/json"'), total consumed 70 bytes, indexed True
INFO:hyper.http20.connection:Received unhandled event <PriorityUpdated stream_id:3, weight:16, depends_on:0, exclusive:False>
INFO:avs.alexa:status code: 200
INFO:avs.alexa:Found 176 bytes of None application/json, first_payload_block=True
INFO:avs.alexa:Finished downloading JSON
DEBUG:avs.alexa:{u'directive': {u'header': {u'namespace': u'System', u'name': u'SetEndpoint', u'messageId': u'cc59261c-59ef-4629-8650-2816e28a37f7'}, u'payload': {u'endpoint': u'https://avs-alexa-eu.amazon.com'}}}
DEBUG:avs.alexa:{
"header": {
"namespace": "System",
"name": "SetEndpoint",
"messageId": "cc59261c-59ef-4629-8650-2816e28a37f7"
},
"payload": {
"endpoint": "https://avs-alexa-eu.amazon.com"
}
}
DEBUG:avs.alexa:ping at Thu Dec 07 11:53:48 2017
INFO:hyper.http20.connection:Received unhandled event
DEBUG:avs.alexa:ping at Thu Dec 07 11:57:48 2017
DEBUG:avs.alexa:ping at Thu Dec 07 12:01:49 2017