Description of ServoTimer ServoTimer is an Android app for all fans of old analog car racing trac7up 7 Down Pokerks. With the ServoTimer app and easy-to-install connection hardware you can connect your analog racetrack with the Android device of your choice. Currently ServoTimer offers the following features: - lap timekeeping (best time, average and last lap time) - Voice output of the lap times - Turbo function The connection to the racetrack is made with the help of an IOIO USB controller (https://github.com/ytai/ioio/wiki) cost about 30-40 USD. In addition, a contactor for lap timing and 2 switching relays for the turbo function is required. The publication is based on the GPL

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