BiComp - Arduino based bicycle computer

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