Māo Xióngmāo - The purrfect pet

3d print files:

Assembly Manual:

The Assembly Manual is also useful for disassembly (for example when changing battery). In this case just follow the steps in reverse.

FAQ

Q: Do I need to switch off Māo Xióngmāo to save on battery?
A: No that's not necessary. In fact Māo Xióngmāo is designed to be constantly powered on. He consumes just a tiny bit power as long as he's asleep (which is most of the time anyway). Assuming "normal use", a few minutes of human interaction per day, the battery should last for at least a year.

Q: What are the main components of Māo Xióngmāo?
A: Māo Xióngmāo is constructed from two custom PCB:s, five 3d-printed parts, two M2 screws, and a CR123A lithium battery. It uses an ATMega328 microcontroller as its "brain". A piezo speaker, two phototransistors and 17 LED:s are used for sensing and emoting. 

Q: What kind of animal is this? Is it a cat or a panda?
A: It's both. It's a cat-panda hybrid.

Q: I'm a grown adult. Is it ok for me to get a Māo Xióngmāo for myself?
A: Yes it's "purr-fectly" normal. Individuals of all ages naturally fall in love with Māo Xióngmāo. And he is very stylish accessory for most grown-up situations, such as formal dinners and business meetings. 

Q: I'm not into ASMR or fidget toys. Will I enjoy owning a Māo Xióngmāo?
A: Yes, most likely. Māo Xióngmāo's cuteness and calming presence is appreciated by regular people in all walks of life.

Q: Do I need to constantly interact with Māo Xióngmāo to keep him happy?
A: No. Unlike some other brands of virtual pet, Māo Xióngmāo is very self-sufficient and level minded. If you ignore him, he will quite happily default to low-power sleep mode. 

Q: Does Māo Xióngmāo actually do anything useful?
A: Not really. But he does all of these things, and more:

• Sleeps
• Wakes up
• Meows
• Purrs
• Goes back to sleep