SportsDesign rev O, 28 Oct 2026: the backboard is its own official (calls, lights, signed log, impact and security); the whole product inside the backboard, ring plate and shot clock box at FIBA 2026 size; CAD, fit checks, camera view checks and assembled 3D court done; not built

CourtOne

IEMI's one basketball product: a smart backboard pair whose boards count makes, map shots, run the shot clock and light their edges, with replays and a ring check

IEMI's one basketball product is the backstop front itself (rev S). The backboard, padding, ring and shot clock display at both ends are built to the FIBA 2026 equipment rules and carry everything: an AI camera and a Pi Zero 2 W in the top rail of each board, red and yellow LED edge lights in the frame, a rim sensor on the ring plate and a double-sided LED shot clock above the board. The boards count makes and map shots, run the 24/14 (or 35) shot clock from the scorer's tablet, light the board edges, keep 30-second replays, log coaching reps and warn when the ring is hung on or works loose. There is no detachable part.

Who buys it: Rec centres, YMCAs, sportsplexes and school gyms (US, UK, Europe) that buy backboards and a shot clock and run open gym, games and lessons on the same court.
Why it pays: $4,990 for a pair instead of about $6,350 for plain glass boards, rings, padding and a two-clock shot clock set (est.), or $9,174 + $257/month for our separate CourtCall, SmartHoop with ShotClock, CornholeCam and CoachVision products.
Target price: $4,990 CourtOne (two smart backboards with rings, padding and shot clocks) + $29/month Gym Clips optional (target)
First-minute wow: Open gym, no referee: a shot from the right corner drops in, both board edges flash green three times with a tone, and the score on the tablet reads 42-39. A rebound off the ring and the shot clock is back at 14 before anyone looks. Nothing on the court but the two backboards.

See the CAD design Concept page

CourtOne concept: the idea and where each part goes — The concept. The CAD design is below, under Printable CAD.

What the research found

And how this design answers it

Rev O (28 Oct 2026): the backboard is its own official. A corner camera in each side rail and the tilted top-rail camera call each basket and its value; the rim sensor resets the shot clock; the board calls goaltending, basket interference and a lodged ball; the edges and a tone show each call in club play; a secure element signs every call; unsure calls go to the captains; in league games it only assists
Rev S (27 Oct 2026): the ceiling head, far-half head, CourtKey, RimPods, wall shot clock faces and ShotKey → one smart backboard pair; every job runs inside the backboard, the ring plate and the shot clock box
Pi 5 + Hailo head on the ceiling → a Pi Zero 2 W and an AI camera (the model runs on the sensor) in the top rail of each board, looking down at the ring
RimPod clip-on accelerometer → a rim sensor in a box on the ring plate, which also warns of hanging and a loose ring
Wall-mounted shot clock faces → a double-sided LED shot clock 320 mm above and behind each board (FIBA 5.6), with 24/14 and 35-second modes
New: FIBA red end-of-period and yellow shot-clock light strips in the frame border
ShotKey and CourtKey → the CourtOne app on the scorer's tablet; cornhole scoring listed as a gap
Price $2,970 + $69/month per full court → $4,990 for a pair of smart backboards + $29/month optional

Use case

Tuesday open gym, then a school league game

ScorerCoachFacility manager

01Trigger: the shot clock is running in the third quarter
02Detection: the home board camera follows the shot, the rim sensor feels the ball hit the ring
03Alert: RIM shows on the scorer's tablet; the scorer resets to 14
04Action: at zero both board tops glow yellow; later a player hangs on the away ring and the manager gets a warning

Outcome: One product, the backboards the gym already hangs, and one app; $4,990 instead of about $6,350 (est.)

How it works

Architecture

01
Sense: AI camera in each top rail, rim sensor on each ring plate, the scorer's tablet keys
02
Decide: the home board Pi Zero 2 W runs shot, make/miss, shot clock, light, replay and ring-care rules
03
Send: gym Wi-Fi and MQTT to the tablet, the phone and the away board; HUB75 to the clock panels
04
Tell: shot clock digits, red and yellow edge lights, the CourtOne app

Hardware

Real parts, buyable today

Bill of materials: about $3,330 per CourtOne pair (rev O adds about $100) at qty 1 (both backboards, rings, padding, shot clocks and electronics, est.).

Block	Part	Why this part
Brain	Raspberry Pi Zero 2 W in the top rail of each board (home board leads)	Fits inside the 44 x 54 frame cavity and runs the rules
Camera	Raspberry Pi AI Camera (Sony IMX500) behind a flush window	Runs the ball and pose model on the sensor, so a small Pi is enough
Rim	Seeed XIAO nRF52840 Sense in a box on the ring plate	Feels rim hits, hanging and a loose ring through the plate
Shot clock	2 x Adafruit 64x32 RGB LED matrix per end + RGB Matrix Bonnet	Double-sided digits with tenths, driven by the brain
Lights	Adafruit NeoPixel strip in the frame border	FIBA red end-of-period and yellow shot-clock lights
Power	Mean Well LRS-50-5 in the shot clock box	5 V 10 A from the gym's shot-clock mains feed
Equipment	1,829 x 1,067 tempered glass board, 50 x 60 aluminium frame, Ø457 steel ring, padding	The legal backstop itself: FIBA 2026 sizes, US 72 x 42 in board

Mechanical

Printable CAD

12 parts, generated from code and checked as closed solids. Pick a part to inspect it, or download the STL files to print.

Loading the CAD…

Real CAD · drag to rotate · scroll to zoomReal CAD · swipe sideways

Open risks we are working on

The shot clock is for Level 2 play: FIBA Level 1 needs 230 mm digits, a game clock link and a pressure-release ring; state associations decide what US schools may use
Ball impacts on the shot clock box (FIBA 5.4 durability test) and on the camera window are untested
Make/miss and shot spots from a camera above the ring (est.) are untested; the rim sensor backs up close shots
Wi-Fi delay between the scorer's tablet and both clocks (target under 100 ms, est.) is untested; a wired back-up may be needed
The glass and ring set weigh about 65 kg per end: fitted by the venue's contractor on the existing support frame
Clips of juniors need the venue's safeguarding sign-off before sharing; no face recognition
Cornhole, gym pickleball replay and full-game film are gaps of a backboard-only product

Design stage only: nothing on this page is for sale. Specifications and prices are targets.