Search found 735 matches

by bill.yu
Fri Sep 28, 2018 5:29 pm
Forum: DSO
Topic: Generate AC Sine Signal
Replies: 1
Views: 1233

Re: Generate AC Sine Signal

Hi there,

the dso quad can generate the ac sine waveout. please help provide your current setting and take a picture about the screen. thanks.

cheers
Bill
by bill.yu
Fri Sep 28, 2018 5:04 pm
Forum: Arduino & Seeeduino
Topic: LoRa RF95 home network. What to expect?
Replies: 1
Views: 1254

Re: LoRa RF95 home network. What to expect?

Hi there, it is RFM98 module inside of Lora radio 433Mhz. Please refer to 4.1.1.3. Coding Rate ** To further improve the robustness of the link the LoRaTM modem employs cyclic error coding to perform forward error detection and correction**. For more info, please refer to http://www.hoperf.com/uploa...
by bill.yu
Fri Sep 28, 2018 4:58 pm
Forum: Arduino & Seeeduino
Topic: Power on Can-Bus Shield.
Replies: 1
Views: 876

Re: Power on Can-Bus Shield.

Hi there,

I checked my boards and it is green. It is only power indicator. So the color shall not impact the board performance. please try and let us know if any issue. thanks.

cheers
Bill
by bill.yu
Fri Sep 28, 2018 4:16 pm
Forum: ReSpeaker
Topic: Wi-Fi Transfer Speeds
Replies: 2
Views: 798

Re: Wi-Fi Transfer Speeds

Hi there,

I talked with hardware engineer that we do not have a good answer for it. it may be limited by the rk3229. thanks.

cheers
Bill
by bill.yu
Fri Sep 28, 2018 3:33 pm
Forum: ReSpeaker
Topic: Is it possible to connect Mic Array v2.0 to a Raspberry Pi via the pins at the bottom?
Replies: 5
Views: 1306

Re: Is it possible to connect Mic Array v2.0 to a Raspberry Pi via the pins at the bottom?

HI Ning

Yes, you can. please follow below connection. thanks.

Image

Image

cheers
Bill
by bill.yu
Wed Sep 26, 2018 5:41 pm
Forum: ReSpeaker
Topic: I2S Slave mode
Replies: 1
Views: 686

Re: I2S Slave mode

Hi there,

respeaker 2-mic array hat sets as slave, https://github.com/respeaker/seeed-voic ... ay.dts#L71. so you can use it directly. thanks.

cheers
Bill
by bill.yu
Wed Sep 26, 2018 5:26 pm
Forum: ReSpeaker
Topic: Start Virtual Env and Alexa at Startup.
Replies: 1
Views: 884

Re: Start Virtual Env and Alexa at Startup.

Hi David,

please refer to https://www.raspberrypi.org/documentati ... c-local.md thanks.

cheers
Bill
by bill.yu
Wed Sep 26, 2018 5:19 pm
Forum: ReSpeaker
Topic: 2-mic and 4-mic linear array GPIO pins
Replies: 3
Views: 1483

Re: 2-mic and 4-mic linear array GPIO pins

Hi there,

For 2 mic, please refer to https://github.com/SeeedDocument/MIC_HA ... AT_SCH.pdf

For 4-mic linear array hats, please refer to below.

Image

cheers
Bill
by bill.yu
Wed Sep 26, 2018 4:50 pm
Forum: ReSpeaker
Topic: LED control on Mic Array v2
Replies: 2
Views: 867

Re: LED control on Mic Array v2

HI Ning please try below code and modify the 0x01 to [set brightness, range: 0x00~0x1F]. thanks. import time from pixel_ring import pixel_ring if __name__ == '__main__': pixel_ring.change_pattern('echo') while True: try: pixel_ring.set_brightness(0x01) pixel_ring.think() except KeyboardInterrupt: br...
by bill.yu
Wed Sep 26, 2018 4:40 pm
Forum: ReSpeaker
Topic: Respeaker Array v2.0 Device Not Recognised
Replies: 1
Views: 776

Re: Respeaker Array v2.0 Device Not Recognised

Hi there,

For the linux and mac, we do not need any driver. So it maybe hardware issue. Please take a picture about the mic array v2.0 and send it techsupport@seeed.cc . we will process it. thanks.

best rgds
Bill