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Seeking feedback on UI design of Petoi Mobile App

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Carlos Ivan Jerez Gonzalez

10月01日

Understanding skills generated using serial communication with the key K

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若要查看作用方式，請前往您的即時網站。

Len

2020年5月07日

New sensors for the NyBoard

在 Hardware

As we known, the NyBoard V0 uses a MPU-6050 6-axis IMU motion sensor. This sensor is an 8-years old model and it's not recommend for new designs.

So we're going to develop a new model with the new IMU chip and other sensors.

New IMUs:

TDK (Invensense) :

ICM20600/ICM20602 : 6-Axis, No DMP, no Arduino library

ICM20948: 9-Axis with DMP, 1.8V not compatible to mainstream MCU (needs additional voltage transform circuit and individual1.8V LDO power supply ), sparkfun library without DMP support

ST:

LSM6DS3: 6 Axis, adafruit/sparkfun library

LSM9DS1: 9 Axis, adafruit/sparkfun library

We're not going to use an individual magnetic compass sensor as it will be interfered by strong magnetic field produced by servos.

A high performance MCU platform for NyBoard is under development too.

Any suggestions for IMU sensor or other sensors you want ? eg: temperature/humidity sensor? MP3 player module? Bluetooth or WiFi?

Everyone who gives good advice or joins discussion in this post will get a special present by Len.

23 則留言

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23 則留言

FuzzyFoyz

2020年8月15日

I'd like to see an improved frame to support the addition of a pinhole camera and IR sensors for eyes, allowing for night vision. Perhaps a second mount along with the ultrasonic frame would be possible?

USB-C battery compartment for cable charging or even to allow for a Qi wireless charging receiver to be plugged in would also be nice.

I second the addition of multiple touch, Lidar, temperature, mic and speaker sensors!

Dedicated WiFi and Bluetooth will be good, but what happens when you use Pi config, will the Pi connectivity take over?

I'll keep my thinking hat on and suggest more improvements if I think of any!

Finally, any update on the new board?

Thanks for all your hard work!

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Len

2020年6月01日

A funny small robot is under development by myself, maybe ugly ( @Rongzhong Li doesn't like it, but I like it...)

You can directly use an Arduino Nano, a GY-521 MPU-6050 , a 14500/18650 battery cell and cheap plastic servos that easy to buy and cheap.

You may try a 4-leg-without-knee robot, a car or other things you imagine. PCB is the chassis and tough enough! 6 PWMs by ATmega328P.

I will sell this kit for fun (without the brand of Petoi).

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Eric Fritz

2020年6月01日

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Fantastic! I am very interested!

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Len

2020年6月01日

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@Eric Fritz Haha, Thanks!

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Len

2020年6月01日

New version Nyboard V2 is under development

1. A WiFi & Bluetooth based SoC (ESP32)， dual core Xtensa 6 240MHz CPU， 500K SRAM and 16MB Flash with FAT/SPIFFS filesystem. You can directly save files through Arduino IDE.

2. On board USB download circuit and Type-C interface

3. Intergated DAC output with a small D-Class amplifier, you can play small MP3/WAV files instead of the beeper~

4. 2 Serials!

5. Super special offer for V0 users!

(*V1 is a simplified version for educational use, we removed some unused pins)

Snapshot:

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iamsetset

2020年6月01日

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Wow! - so exciting! Please excuse some newbie questions - Is this still an arduino-based board? Will the increased capability elimante the need/advantage of adding a Pi? Will it support the 4 more shoulder roll servos not presently included with Nybble and if so will those additional servos be part of future Nybble kits? Will the current software have to be rewritten to work on this board? Thanks.

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Len

2020年6月01日

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@iamsetset

It's an Arduino based board.
Raspberry Pi is supported through the secondary serial port. But there's no power (5V) for Raspberry Pi. The board is 3.3V.
All pins of ESP32 are used. There're totally 12 PWM pins for servos. Nybble needs 11 servos, but I think robot makers wants 12 servos(4 more shoulder). You can use the board make a 12-degree of freedom robot without head and tail for experiment.
New code, easier to program than Nybble V0. Also we are going to refactoring V0's code to make it easier to read and program.

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iamsetset

2020年6月01日

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@Len Thanks for the quick response. #3- As I understand it, 4 more servos for the shoulder roll would total 15, not 12 yes? - poor Nybble with no head or tail - haha. #4 - Wonderful news indeed. As a newbie I have been franticly cramming Arduino tutorials into my old brain for weeks but I still can't even begin to make sense of 99.99% of the code.

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Tom Swann

2020年5月29日

I found it very difficult to mount the board on top (NyBoard plus Pi style) and still get all the wires tucked and routed under the NyBoard (i.e. in the "belly" of Nybble). Please consider alternatives that would make this easier (perhaps stand-offs that raise the NyBoard up?)

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Rongzhong Li

2020年5月30日

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do you have a picture of your current configuration?

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Tom Swann

2020年5月30日

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@Rongzhong Li Sure thing!

These pictures below show the difficulty presented by the green power connector with power wires (hits the wood support) and the top PWM pins (inaccessible when mounting the NyBoard on top in the "with Pi" configuration). Thus, please consider alternative ways to mount the NyBoard on top of the wood support (like using stand-offs).

Top View of NyBoard on Nybble: Difficulty aligning NyBoard with holes of "NyBoard with Pi" support. This shows the problem of the green power connector. I have notched the support but apparently not enough and IMO, such notching should not be necessary.