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Breakout for LinkIt Smart 7688 v2.0, succeeding the first version (check here), now can better support the audio recording function. As it reserves the original pins of LinkIt Smart 7688, the board also integrates several frequently-used ports such as an Ethernet port, a 3.5mm audio port, and a Host port (USB Type-A Connector) for more peripherals, and along with 3 Grove ports to provide 2 UART and 1 I2C interfaces for the Grove-based electronics, it saves you a lot of work doing wirings in your smart IoT projects, makes your rapid prototyping even faster.
LinkIt Smart 7688 (a compact controller board) is an open development board, based on the OpenWrt Linux distribution, MT7688. The board is designed especially to enable the prototyping of Rich Application IoT devices for smart house.
Smart multimedia devices
Teaching and learning
3.5mm headphone Jack(with Mic) which support OMTP and CTIA
1 x Ethernet to connect internet
1 x USB 2.0 for more peripherals
Grove interface: 2 x UART, 1 x I2C
Stereo and AUX are supported
Audio Recording supported
1W output for each stereo port
Tracking vendor sales so that effectively manage what inventory needs to buy to fill machines before it gets out of stock.
Make your own Wi-Fi Speaker.
Breakout for LinkIt Smart 7688 v2.0 is a Grove port integrated expansion board for LinkItTM Smart 7688 development board. This breakout board will help beginners to get started fast because it can save a lot of work and make prototyping easier through sim
I have the same problem. https://forum.seeedstudio.com/viewtopic.php?f=42&t=7608&sid=77a1dad21e1e92c2b930a8cab31c8adf
Have you installed alsa packeges in openWRT? in serial console try to do aplay -L to see if interface is recognized from OS. Dario
Dear Customer, The Pin numbers are different. So we can't use it. thanks. Bill
The Duo module has the I2S interface mapped on Arduino (MCU) core not at MPU then is not possible use audio interface in openWRT. But you can use them in arduino. (https://forum.seeedstudio.com/viewtopic.php?f=42&t=7608&sid=77a1dad21e1e92c2b930a8cab31c8adf )