Ssh and "sudo shutdown -h now" just reboots the Raspberry Pi attached to Bittle Nyboard using 2x5 socket

To see this working, head to your live site.

Chris Rogers

Dec 03, 2019

My DIY 3D Printable version of Nybble on Thingiverse

in Showcase

Just wanted to share my 3D printable version of the original Nybble as seen in Volume 70 of Make Magazine.

This is such a great little design and my daughter is loving her new pet kitten!

https://www.thingiverse.com/thing:4015171

14 comments

14 Comments

Shimizu Ogawa

Hi Chris,

Thank you very much for the models! My daughter printed them out and now trying to assemble the cat, however, she needs more information. Could you please advise if there are more detailed diagrams anywhere? For example, it's unclear how to connect EPROM and why it's needed at all. Or to what exact port connect motors from each exact joint? And is RaspheryPi a must or can the cat be programmed using just Arduino to some extent?

Chris Rogers

Replying to

Springs are nice, but not necessary.

Jason

Replying to

EEPROM and Flash is used to store skill data: The erasing and writing times of EEPROM are limited (1,000,000 times). To minimize write operations, two skills are defined: Instinct and Newbility. Their addresses are stored in the built-in EEPROM (1KB) of the chip (ATmega328P) as a lookup table, but the data of the main body exists in different storage units:

I2C EEPROM (8KB) memory Instincts. Instincts are fixed skills (or occasional fine-tuning), which can be compared to "muscle memory".
Flash (shares 32KB storage space with Arduino program code) Storage Newbilities. Newbilities refer to user-defined skills (possibly modified, added, or deleted). They will not be written into the static EERPOM but uploaded to the flash memory (Flash) together with the Arduino program code. Their addresses are assigned in real-time when the code is executed, and this value rarely changes as long as the total number of skills (including all instincts and newbilities) remains the same.

More detaills please refer to : https://docs.petoi.com/applications/skill-creation#skill-storage-type

Shimizu Ogawa

Replying to

Thank you Jason. It's clear now. It doesn't specify how exactly connect the chip to the Arduino, but I think it's pretty standard, so we will be able to find the diagram somewhere on the Internet.