MX5-Arduino-Speed

Target Hardware: Arduino ATMega328p 2.42 Inch SS1309 128x64 Monocrhome OLED 5v Beeper 5v Speed sensor (#DSSA from www.carbuildersolutions.com)

Pinout: OLED_MOSI 9 OLED_CLK 10 OLED_DC 11 OLED_CS 12 OLED_RESET 13 Beeper 2 (and to GND) Speed sesor 4 (and 5v, GND)

Configuration via USB, 115200. Commands are:

ODO - Press return and then enter new odometer reading PPM - Press return and enter pulses per half mile (use CAL mode in preference) CAL - Enter calibration mode (see below) RUN - Exit calibration mode

Calibration mode:

In calibration mode it starts counting pulses immediately. Calibration should be done over a measured half a mile. Press enter when starting the half mile, and again at the end. The number of pulses will be displayed on the screen. To write this to EEPROM and return to normal mode type 'RUN'. If the data is not suitable (missed marker etc) then just repeat the measurement.