This is my DIY bicycle computer. It based on Arduino Pro mini with Nokia 5110 LCD and powered by Lithium battery BL-5C.
There are features:
- Speedometer (analog and digital)
- Resetable trip distance meter + average velocity + trip time
- Odometer + all roadtime
- Resetable maximum velocity
- Cadence meter
- Thermometer
- Clock + Date
- Auto backlight with light sensor
- Auto standby and poweroff
- Battery measuring
Partlist:
- Arduino Pro Mini (3.3 V 8 Mhz)
- Nokia 5110 LCD
- DS1302 with quartz and battery
- TP4056 and micro USB input board
- NTC thermistor and photoresistor
- some resistors, capacitors, diodes, buttons
This project use Garmin mount from here: https://www.thingiverse.com/thing:2123857