Mini4WDLaptimerV2 byNSDev vs RC Pit Spec

**App Overview** This app uses your smartphone's camera to measure lap times for Mini 4WD cars, RC cars, Kyosho Mini-Z, and similar vehicles. It offers detailed settings to ensure accurate measurements. By entering the course length, speed can also be displayed. **Main Features** **- Font Size**: Adjust the font size for lap times and statistics. Choose the optimal size for visibility and layout. **- Decimal Places**: Specify up to 9 decimal places for speed and time values. Choose between high precision or simplified display. **- Screen Rotation**: Configure the display for easy viewing in both portrait and landscape orientations. **- Sound Effects**: Enable sounds for lap detection and start events. Useful for notifications or silent operation depending on your needs. **- Light**: Turns on the LED light during camera use to improve detection accuracy in dark environments. **- Detection, Measurement, and Camera Settings**: Fine-tune camera FPS, detection sensitivity, focus, and zoom. Customize detection conditions based on your environment and course. **- Detection Point Settings**: Specify which points on the screen trigger lap detection. Choose freely from 81 selectable detection points. **- Course Length Settings**: Automatically calculate accurate lap distances based on course type (2-lane/3-lane) and selected parts. Used to compute lap speed. **- Manual Measurement**: You can measure manually when the camera is unavailable or permission is not granted. **How to Use** 1. Place your smartphone on the course (ensure it is stable and vibration-free). 2. Tap Start. 3. When the car passes, measurement begins. 4. Tap Stop after the desired number of laps. 5. Review lap and split times. 6. Share lap time data from the menu. **Q&A** **Q. Menu operations are slow to respond. ** A. When the camera is active, overall responsiveness may decrease. You can tap the camera image to stop the camera. Tap it again to restart the camera. **Q. The Mini 4WD doesn't trigger detection when passing.** A. If detection fails, try lowering the sensitivity value to improve responsiveness. The default is 100, but around 80 may work better. Detection may be difficult if the car and course colors are similar. **Q. Speed is not displayed.** A. Speed information will not appear unless the course length is set. Please enter the course length from the menu. **Q. I set the course length, but where is the speed shown?** A. Scroll the lap list to the left to reveal the speed on the right side. **Q. Can I set a lap count for automatic stop?** A. Yes. You can specify the auto-stop lap count from the settings menu. The default is infinite. **Q. Does lap time accuracy vary by device?** A. Yes. Accuracy depends on your device's camera frame rate. **Q. Can I mute the sound?** A. Yes. You can disable sound from the options menu. **Caution** Lap time accuracy depends on your smartphone's camera performance. At 240 FPS, there may be an error of 0.0042 seconds. Higher FPS may cause the device to heat up. Be cautious of thermal shutdown. Continuous use of the light may also cause overheating. Due to device protection, the light may stop functioning when hot. Please wait until the device cools down. **Disclaimer** The developer shall not be held responsible for any damages or issues resulting from the use of this app. Please use it at your own discretion. **Other** [ミニ四駆] is a registered trademark of Tamiya, Inc. [MINI-Z] is a registered trademark of KYOSHO CORPORATION. [ラジコン] is a registered trademark of Masudaya Corporation. This app is not affiliated with Tamiya Co., Ltd., Kyosho Co., Ltd., or Masudaya Corporation.

Your whole RC pit, in one app. RC Pit Spec brings your setups, lap times, AI analysis, parts, and sharing together in one place — the pit box in your pocket. Whatever you do at the track, just open the app and it's all there. And the standout: your phone becomes a lap timer. No transponder, no timing loop. Point the camera for a single car — or print the app's paper markers to time several at once. Then let AI analyze your runs and tell you what to tune next. ■ Lap timing with your phone Point the camera at your finish line and it detects each pass automatically. Print ArUco markers from the app onto plain paper, stick them on, and time multiple cars at once, scored by number. Mount it on a tripod and run pack after pack with no re-setup. Everything runs on-device — works even with no signal at the track. ■ AI causal analysis Tap "analyze" and the AI compares this run to your last session at the same track: "Toe-in up front gave you better turn-in." Cause and effect, not guesswork. Apply a suggested change in one tap, then confirm on your next run whether it actually made you faster. ■ AI pit crew chat Chat directly with a virtual veteran RC mechanic. Ask follow-ups, dig deeper, and get real coaching that respects your chassis' specific constraints. ■ Run log Record date, track, surface, temperature, installed parts, and notes. See your progress in numbers and charts — the lap-trend graph drops as you get faster. ■ Garage Manage all your cars and settings in one place, with a fast, low-typing UI built for the pit lane. ■ Parts management Track your inventory, what's installed on which car, and maintenance reminders. ■ Pit Lane Browse, compare, and import other drivers' setups. Learn from the fast guys and share your own. ■ PDF export (every chassis) Export a setup sheet as a PDF for any chassis. TT-02, MB-01, TRF421, TA08R and other main Tamiya chassis use an official-style sheet; the rest use an item-list sheet. Print it and keep it in your pit box. ■ Supported chassis 40+ chassis across touring, off-road, drift, and Mini-Z — including Tamiya, Kyosho, YOKOMO, XRAY, Team Associated, Mugen, Infinity, Schumacher, and more. New chassis added regularly. Not in the list? Add your machine under a name you choose. ■ Pricing Free to start. Optional Basic / Pro plans for AI usage and premium features. ■ Disclaimer All product and brand names are trademarks of their respective owners. RC Pit Spec is an independent third-party tool and is not affiliated with or endorsed by any manufacturer.