https://github.com/fu5ha/luluu

A cute and smart arm warmer sleeve ^_^
https://github.com/fu5ha/luluu

Last synced: about 2 months ago
JSON representation

A cute and smart arm warmer sleeve ^_^

• Host: GitHub
• URL: https://github.com/fu5ha/luluu
• Owner: fu5ha
• Created: 2023-10-11T23:29:39.000Z (about 1 year ago)
• Default Branch: main
• Last Pushed: 2023-11-28T17:05:49.000Z (about 1 year ago)
• Last Synced: 2024-10-16T05:57:17.103Z (about 2 months ago)
• Language: Rust
• Size: 4.03 MB
• Stars: 6
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: licenses/APACHE2.0

Awesome Lists containing this project

• rust-embedded - LuLuu - based display controller that streams animated images from a microSD card to a small LCD display. (Firmware projects / WIP)
• awesome-embedded-rust - LuLuu - based display controller that streams animated images from a microSD card to a small LCD display. (Firmware projects / WIP)

README

        
# LuLuu!

A cute and smart arm-warmer sleeve with a 1.3" full color TFT display built into the back of the

hand ^_^

![PCB drawing](img/board_drawing.png)

![PCB render](img/board_render.png)

## Hardware

Runs on a RaspberryPi RP2040 microcontroller. The small 30x75mm PCB has built-in battery management for a single-cell

LiPo, microSD card storage, and direct connection via SPI to an Adafruit 4520 1.3" TFT (ST7789VW controller). It's

also designed to be expanded via SparkFun Qwiic/Adafruit STEMMA QT compatible (3.3v only) I2C sensor modules. Finallly,

it implements the RaspberryPi 3-wire debug connector spec for ARM SWD serial-wire debugging and RS232-style

UART communication.

The hardware design files all live in the [`hardware/`](hardware/) folder. See the [`README`](hardware/README.md) in

that folder for more.

## Software

The firmware that the LuLuu runs is contained in the [`software/`](software/) folder.

It is written in Rust using some of the amazing Rust embedded tooling.

See the [`README`](software/README.md) in that folder for more.

### Installing

You can either install the firmware using the pre-built binary firmware or you can

build it yourself.

#### Pre-built firmware

You can install a pre-built firmware easily via USB by connecting the LuLuu PCB to

your computer via USB, holding the `USBBOOT` button and then pressing the `RESET`

button. This will put the LuLuu into "USB Bootloader mode," causing a "USB storage" 

device to appear on your computer, into which you can drop the compiled `luluu.uf2`

(TODO: link built firmware).

#### Building yourself

To build yourself, see the [`README`](software/README.md) in the

[`software/`](software/) folder.

## Licenses

Hardware is provided under the CERN Open Hardware License 2.0 Permissive variant.

Software is provided under MIT or Apache-2.0 at your choice.

License texts available in the [`licences/`](licenses/) folder.