DoraemonStepper

A feather M0 step counter with SSD1331 oled RGB display and MPU6050 gyroscope with Doraemon face. Code is coming from hell and very terrible. The Feel and Flair of the user experience is a bit buggy but okay :-D

New features v0.5

Display dims after 15sec
Display sleeps after 45sec
clock is bigger
fix a powerbar bug

New features v0.4

Display sleeps after 15sec
Display switchs on if there is an incoming message
UART message is shown as a scrolling text like a terminal
Send 12:34:56 or x12:34:56 via bluetooth to set the Time/clock
small threshold button press fix

New features v0.3

Send 12:34:56 via bluetooth to set the Time/clock
lipo runtime unclear, because bluetooth on my faether is now on

New features v0.2

Button (short): display on for 10sec
180mAh Lipo: 7.5 h
Button to set a step desensity (level 1 to 10) works now a bit better
a clock via Timer (precise: runns 1min behind after 7.5h)
desensity bar better readable

features v0.1

180mAh Lipo (display always on): 2h
Button to set a step desensity (level 1 to 15)
a kind of clock (not very precise)
power bar
step counter
every step: red LED on feather M0 board blinks
rolling eyes to the deepest edge
blinking eyes (every 4sec)
if you tilt it to you: mouth gets more frindly
if you tilt it rearward: mouth gets unfrindly

Code

The code is realy ugly, but it has to work in a very short time.

Picture

Circuit

It is very simple: connect 3.3V and GND to MPU6050 board and SSD1331 display. Add Lipo 3,7V (+red) to BAT (for USB chariging) and Ground (-black) to GND. Add a power switch to the lipo, if you want. Add SCL (clock) and SDA (data) to the I2C clock and data pins of your MPU6050 board. Add a button to 11 and ground. Connect the SSD1331 Display to the SPI bus (and use my modified adafruit lib) like this:

OLED_DC       D5
OLED_CS      D12
OLED_RESET    D6
DIN         MOSI
CLK          SCK

no-go/DoraemonStepper