🛠️ Fix a problem
🔇 No calls, or fewer calls than expected
- Camera beyond ~15 ft? Move to 10–12 ft.
- Red-line framing off? Full pitch path must sit between both lines.
- White fence or light wall behind the pitcher? Move to the other side, or find a darker backdrop.
- Batter blocking the view? Not a problem at a ~45° angle—the camera still sees about 90% of the pitch path. Too tight an angle (close to head-on) and a batter can block 50% or more, causing missed calls.
📐 Calls consistently biased one direction — inside, outside, high, or low?
- Solved by shooting at a ~45° angle. Too tight (close to head-on) or too far to the side, and calls get biased or missed.
- Angle correct? Try Calibrate on one pitch.
- Still off? Close the app and start over — carefully follow each setup step.
⚾ Bad missed calls with a batter in the box?
Make sure you're using Live At Bats mode, not Bullpen mode, whenever a batter is at the plate.
📉 Calls got worse partway through the session?
Try Calibrate on a pitch. If that doesn't fix it, close the app and start fresh with a new scan. Phone hot? Let it cool off — bring a sun shade or a cooling towel next time. What to buy →
☀️ Can't see the screen well while scanning or mounting — glare
- Sun high overhead or over your shoulder? Set up on the opposite foul line (1st-base ↔ 3rd-base side)—glare eases when the sun hits the screen at an angle.
- Sun low and shining into the lens? Move to the opposite side of the plate so the camera faces away from the sun.
- Can't see the plate due to glare? Place a dark bucket, bat, or glove next to (or on top of) the plate so you know where to find it on screen.
- Use a matte/anti-glare screen protector — glossy or clear makes glare worse. What to buy →
🏠 Zone doesn't line up with the real plate after mounting
Drag the zone back onto the plate, or tap Adjust Plate and use the arrows to slide it into place.
📱 Pro iPhone: blue plate moved and shrank on the walk to the tripod
Expected. Enter exact camera-to-plate distance and lens height when prompted (measuring tape →), then use Adjust Plate to slide the blue plate back onto the real one.
🎯 Calibrate isn't fixing it, or Apply is grayed out
- Only calibrate on a pitch with no contact — Apply stays grayed out without clean data.
- One calibration on a clean pitch is usually enough. Repeating it usually means something else is wrong.
- Still broken? Close the app, clear the plate area, and start with a fresh scan.
📶 Second device won't connect
Use an Android hotspot or travel router — not every Wi‑Fi works. What to buy → Using an iPhone hotspot? The tracking phone needs Airplane Mode on, then Wi‑Fi back on, before it joins. Details below.
➕ Can't add another phone
Check the antenna icon (Share Game) on the tracking phone — 7/7 means you're at the max. Disconnect one, or toggle the antenna off and back on. See Multiple second screens.
MPH is approximate (±5). Strike zone ~within one ball width when setup is good. More detail: Help & FAQ → Troubleshooting.
✅ Setup checklist
- Tripod mounted, 10–15 ft from the plate, offset ~45° from the pitch line (not aimed at the pitcher).
- Camera height about mid-zone — real home plate and the highest pitch you expect both in frame.
- Ball path between the two red lines — zone on one line, mound on the other (don’t center the zone between them).
- Virtual plate lined up on the real plate before Play Ball. If it shifts after mounting, drag it back or use Adjust Plate.
- After Play Ball, throw a few test pitches and Calibrate as needed.
First time? Help & FAQ → First-time setup · tripod height: FAQ · red-line diagram: FAQ.
📡 Connect two devices
Follow Game and Command Center need a network both iPhones can join. Not every Wi‑Fi or hotspot works — iOS Personal Hotspot blocks device-to-device traffic by default. Single-phone tracking does not need Wi‑Fi.
What works (easiest first)
| Setup | Result |
|---|---|
| Android phone hotspot — both iPhones join (no SIM needed) | Recommended field setup |
| Travel router (~$20) — What to buy → | Best for 3+ phones — all join; no internet required |
| 3rd-party iPhone hotspot — tracking phone: Airplane Mode → Wi‑Fi on → join first | Works only with that Airplane Mode step on the tracking iPhone |
What does not work
| Tracking iPhone as its own hotspot | Does not work |
| Two iPhones on same iOS hotspot without Airplane Mode + Wi‑Fi on the tracking phone | Does not work |
Multiple second screens (experimental)
One tracking iPhone can share with up to 7 other devices (typical: 1 Command Center + up to 6 Follow Game). Follow Game and Command Center can connect at the same time.
- On the tracking phone: turn on Share Game (antenna icon) after every device joins Wi‑Fi. Badge shows connected/7.
- 1–2 second screens are field-tested. 3+ need a travel router — report issues to support@heyblu.ai.
- Use only one Command Center per session; extra slots are for Follow Game viewers.
On each iPhone: Settings → HeyBLU → Local Network On. Full walkthrough: Help & FAQ → Connect two devices.
🎒 Before the field
🎒 Before the field
- Volume up, or Bluetooth speaker / earbuds
- Tripod or fence clip (inside fence); measuring tape on Pro phones
- Sun shade and a matte/anti-glare screen protector — easier to read outdoors
- Charge phone; battery pack for long sessions
- Second device (iPad or another iPhone) makes calibration and control easier from Command Center. Wi‑Fi only — no cell service needed; an old “brick” iPhone works. Settings → HeyBLU → Local Network On.
- Two devices? Android hotspot or travel router (best for 3+ phones). iPhone hotspot: tracking phone needs Airplane Mode → Wi‑Fi on first
- Clean camera lens
- Game balls — slightly scuffed white tracks best
📏 Limits
Works best: outdoor · 10–15 ft · daylight · ~60 MPH and under.
Expect more hassle: indoor only · much past ~15 ft · 65+ MPH untested · battery under ~30% · heavy breaking stuff still in testing.