NEW Releasing: Grove AI HAT for Edge Computing and Look forward to your ideas!

[yokonav]

This looks amazing with a lot of possibilities! If we are using it with Raspberry Pi, we do not need wifi, bluetooth, sd card module but of course as a standalone unit we might need it. I was working on the “Recognition of Activities of Daily Lives (ADL)” and there was requirement for a 3-axis accelerometer. The problem is: if we use 3-axis accelerometer grove module, for better result it should be mounted parallel to the board. It would be very helpful to add a 3-axis accelerometer on the board itself which I think would not take much space. It will be beneficial for other use cases like auto-rotate lcd screen, free fall detection (to save data before it crashes!), almost all robotics projects (auto driving) needs it. I am eager to try it out soon!

[shunya.sato.310]

Awesome!



Would be nice to have some basic sensors on the board. Something most commonly used for Machine learning.

You already have camera. Nice.



Ideas to add:

• Motion sensors (3 axis accelerometer at minimum, additional 3 axis gyro would be good. 3 axis magnetometer is a nice plus)
  
• One microphone
  
• Connector for Sipeed 6+1 Microphone Array

[jeremy882]

@johnruciak post_id=52672 time=1552587869 user_id=103662

Make it a real edge device by including LoRaWAN.

It seems there isn’t enough space for LoRaWAN…a LoRaWAN HAT could be more handy.

[jeremy882]

@marioalemn post_id=52669 time=1552581505 user_id=18827

A microphone could be useful.

Thanks for the suggestion, will add a microphone in the next version~~

[jeremy882]

@bernard.vanhaecke671 post_id=52673 time=1552589206 user_id=32725

Awesome stuff! I suggest to put at least a couple more Grove connector sockets on the board, there seems to be enough room left. This would allow to connect several additional Grove sensors (there are many for about anything), which could be used as additional input to ML models and allow to do sensor fusion projects (because using AI for camera only is somewhat limiting). Grove actuators can be hooked up as well to sockets (relays, motor controller, etc.. there are a lot of Grove accessories) and can for example be controlled from the output of a ML model; this is easy to do. I suggest to put the additional Grove sockets vertically, just like on the Seeeduino Lotus board instead of lining them up at the edge of the PCB. You could probably have 4 analog and 4 digital ports, instead of 2.

Thanks for the suggestion. From the current layout, there isn’t much space for extra 4 grove ports…We need also try to make the look of the board more harmonious, maybe we can make those horizontal ports become vertical too, thus can make more room for extra Groves, will try~~

[jeremy882]

@ross728 post_id=52639 time=1552279225 user_id=101943

I reckon that this would make a pretty awesome platform for introducing students to RISC-V, JTAG, and debugging.
Several ideas;

Raspberry Pi as a JTAG tool - please layout the Grove AI HAT PCB to connect the JTAG pins of the SiPEED MAIX-1 to suitable GPIO pins on the HAT connector so that the Raspberry Pi can be used as a JTAG tool. eg [url]https://github.com/synthetos/PiOCD/wiki/Using-a-Raspberry-Pi-as-a-JTAG-Dongle[/url]

SPI comms with the Raspberry Pi - please layout the Grove AI HAT PCB so that a Raspberry Pi SPI master on the HAT connector (Raspberry Pi is only an SPI master) can talk to an SPI slave on the SiPEED MAIX-1 (SPI much faster than UART...). However, unlike the K210, the Raspberry Pi doesn't have a full FPIOA, so you will have to accommodate its limited choice of HAT pin functions when you layout the Grove AI HAT PCB - only some HAT pins can be used for SPI etc.


Power sharing - please tie the +5Vdc plane on the Grove AI Hat PCB to the +5Vdc pins on the Raspberry Pi HAT connector. Depending on current draw, this will allow both the Raspberry Pi and the HAT to be powered from a single power supply connection (one cable instead of two!)

Really appreciate your idea, in fact, we have already connected the power on the AI HAT on the Raspberry Pi HAT connector, in order to protect the circuit, we also add a switch to change the power mode.



For SPI connector and JTAG, we will evaluate and try to add them in the final version. Will get you updated~Thank you!

[yokonav]

An RTC can be useful.

[yokonav]

Is there any USER defined button?

[jeremy882]

@yokonav post_id=52675 time=1552605406 user_id=13948

This looks amazing with a lot of possibilities! If we are using it with Raspberry Pi, we do not need wifi, bluetooth, sd card module but of course as a standalone unit we might need it. I was working on the "Recognition of Activities of Daily Lives (ADL)" and there was requirement for a 3-axis accelerometer. The problem is: if we use 3-axis accelerometer grove module, for better result it should be mounted parallel to the board. It would be very helpful to add a 3-axis accelerometer on the board itself which I think would not take much space. It will be beneficial for other use cases like auto-rotate lcd screen, free fall detection (to save data before it crashes!), almost all robotics projects (auto driving) needs it. I am eager to try it out soon!

Thanks for the suggestion, a 3-axis accelerometer sensor integrated on the board is surely more convenient than using Grove. Will try to find a cost-effective one so that not adding too much cost for our users, do you have any recommendation for the 3-Axis accelerometer sensor?

[jeremy882]

@shunya.sato.310 post_id=52676 time=1552607718 user_id=25799

Awesome!

Would be nice to have some basic sensors on the board. Something most commonly used for Machine learning.
You already have camera. Nice.

Ideas to add:
* Motion sensors (3 axis accelerometer at minimum, additional 3 axis gyro would be good. 3 axis magnetometer is a nice plus)
* One microphone
* Connector for Sipeed 6+1 Microphone Array

Thanks for the suggestion. Seems microphone and motions sensors are very demanded. Will possibly adding a 3-axis accelerometer instead of 9-DOF because 9-DOF will cost a lot more. For 3-Axis gyro and 3-Axis magnetometer, a Grove module can be handy.

[jeremy882]

@yokonav post_id=52716 time=1552917610 user_id=13948

An RTC can be useful.

RTC requires space…we can also use Grove - RTChttps://www.seeedstudio.com/Grove-RTC-p-758.html, or Pi RTC HAThttps://www.seeedstudio.com/Pi-RTC-DS1307-p-3213.html.

[yokonav]

@jeremy882 post_id=52729 time=1552986862 user_id=22261

[quote=yokonav post_id=52675 time=1552605406 user_id=13948] This looks amazing with a lot of possibilities! If we are using it with Raspberry Pi, we do not need wifi, bluetooth, sd card module but of course as a standalone unit we might need it. I was working on the "Recognition of Activities of Daily Lives (ADL)" and there was requirement for a 3-axis accelerometer. The problem is: if we use 3-axis accelerometer grove module, for better result it should be mounted parallel to the board. It would be very helpful to add a 3-axis accelerometer on the board itself which I think would not take much space. It will be beneficial for other use cases like auto-rotate lcd screen, free fall detection (to save data before it crashes!), almost all robotics projects (auto driving) needs it. I am eager to try it out soon! [/quote] Thanks for the suggestion, a 3-axis accelerometer sensor integrated on the board is surely more convenient than using Grove. Will try to find a cost-effective one so that not adding too much cost for our users, do you have any recommendation for the 3-Axis accelerometer sensor?

I think ST LIS2DH12 is low-cost and ultra-low-power and also useful for gesture recognition, free fall and wake up detection and many other features.

[jeremy882]

@marioalemn post_id=52668 time=1552581110 user_id=18827

A connector for a battery pack would be great! So the battery pack could power both the HAT and the Pi itself.

For Raspbeery Pi + the AI HAT, the lithum battery would run out very rapidly :mrgreen:

[elaine.wu]

UPDATE: We just got the first look of this Grove AI HAT for Edge Computing and Raspberry Pi based on the Sipeed MAIX-I, including LCD and Camera Interfaces, connectors for Digital, I2C, UART and Analog.

Don’t hesitate to share your thoughts and ideas with us in this forum! Let us know what features you would like to see and have the chance of making it to the final product.

[yokonav]

Wow, looking cool! Hoping to see an accelerometer in the next revision and want to try it out soon.

[julie.weber]

@jeremy882 post_id=52740 time=1553073875 user_id=22261

[quote=marioalemn post_id=52668 time=1552581110 user_id=18827] A connector for a battery pack would be great! So the battery pack could power both the HAT and the Pi itself. [/quote] For Raspbeery Pi + the AI HAT, the lithum battery would run out very rapidly :mrgreen:

I think it’s a good idea to add a connector for a battery pack, not to power the board with the battery only but to have an UPS for short power failure. It could be very useful to prevent data corruption.

[baqwas]

Hello,



Is there a release schedule for the revisions posted (for easy lookup) and order placement?



Thanks.

[jeremy882]

Hi Guys,



Thanks for all the wonderful ideas! Here is an update about things we are going to add to the next version.

1. There AI HAT can power Raspberry Pi directly. Just use the onboard switch to switch power mode.
   
2. There will be a microphone on board, the same microphone as the Sipeed 6+1 micarray.
   
3. There will be an ADXL345, 3-Axis Accelerometer on board. We choose this one because there is already a Grove version of the sensor, the software is ready, easier to get a sample, and also lower cost.
   
4. There will be a user button, and the boot LED can be used as user LED.
   
5. The 40-Pin interface will be changed to SMT female header.
   
6. The JTAG package will be smaller.
   
   
   
   We will finish the layout in a week, and get samples of the second version in the week of 22-Apr. If everything goes well, we will do pre-order in early May.
   
   
   
   Welcome to more ideas about how to using Grove with this HAT~

[jeremy882]

@baqwas post_id=53098 time=1554383331 user_id=14923

Hello,

Is there a release schedule for the revisions posted (for easy lookup) and order placement?

Thanks.

Hi baqwas,



We will finish the layout in a week, and get samples of the second version in the week of 22-Apr. If everything goes well, we will do pre-order in early May. Thank you~

[seeed622]

This processor has an amazing APU ( audio processing unit ) that is capable of handling ( 8 ) 192 khz audio streams with hardware accelerated FWT processing. It would be a shame not to have a way to access those features via I2S. It would make an amazing engine for processing high-end audio, especially in combination with the Pi.