CalveClock

How it fits together

CalveClock, part by part

Scroll or tap a part. Press “See the 3D CAD design” to watch the model, built from our CAD, light each part up and show how it connects.

See the 3D CAD designShow the concept

Real-time 3D render · drag to rotate · final design may varySwipe sideways to rotate

1. 01

   The whole CalveClock

   A pen camera and barn hub watch for a cow calving. A house bell shows the pen and minutes, and the phone gets a clip.

2. 02Brain

   Edge Hub: Raspberry Pi 5 + Hailo-8

   The brain, in a separate hub box (not shown): it runs the Edge Hub calving service program

3. 

   03

   Wide NoIR camera

   Watches the pen day and night

   Raspberry Pi Zero 2 W · CSI-2 ribbon cable · 1080p video

4. 

   04

   850 nm IR lights

   Light the pen in the dark with invisible infrared

   Edge Hub: Raspberry Pi 5 + Hailo-8 · 1 A constant-current driver · Lamp power, on when dark

5. 

   05

   PenEye computer

   Streams the pen video to the hub

   Edge Hub: Raspberry Pi 5 + Hailo-8 · Network cable to hub · H.264 video stream

6. 06

   PoE splitter

   Powers the PenEye from the same network cable

   Edge Hub: Raspberry Pi 5 + Hailo-8 · Micro-USB 5 V lead · 5 V power

7. 

   07

   BarnBell controller

   Rings the house bell when the hub raises an alert

   XIAO ESP32-C3 · Wi-Fi (MQTT) · Pen state, accept

8. 

   08

   Bell light ring

   Shows pen colour and minutes in stage 2

   XIAO ESP32-C3 · GPIO data line · LED colour data

9. 09

   All connected

   7 key parts, one program, and your phone

How the parts connect

CalveClock, wired up

Every part, what links it to the brain, and how the data reaches your phone. A solid line is a cable; a dashed line is a radio link.

The program

What controls CalveClock

for pen in pens:
    for frame in pen.cameras.read(fps=2):         # RTSP streams
        cows = hailo.detect_pose(frame)          # YOLOv8s-pose
        sign = hailo.classify_stage2(crop_behind_tail(frame, cows))
        pen.update(cows, sign, now())            # QUIET / RESTLESS / STAGE 2 ...
    if pen.state_changed():
        clip = recorder.cut(pen, before=10, after=10)
        mqtt.publish(f'cc/{farm}/pen/{pen.n}/state', pen.json(), retain=True)
        phone.push(pen, clip)                     # when the internet is up
    if pen.rear_not_seen(minutes=20):
        pen.state = 'NO_VIEW'                     # says so when it cannot see

To your phone

How the data reaches CalveClock phone alerts and calving log

Farmer's phone, plus the house bell

1. PenEye
2. Network cable · video stream
3. Edge Hub
4. House Wi-Fi · MQTT
5. BarnBell
6. Internet push
7. Phone

Key specs

Targets for production units; they may change during development.

Pricing

Target pricing. $449 hub (reads up to 8 cameras), $129 per PenEye, $49 per BarnBell; $756 is a hub, 2 PenEyes and a bell. Estimated BOM at qty 1: about $327 hub, $100 PenEye, $39 BarnBell. The farm's own cameras and PoE switch are not included.

Indicative launch pricing in USD, excluding taxes and shipping. Final pricing is confirmed before any balance is charged.

1. 28 Oct 2026, 11:27LatestA grazing farm needs one thing at each water point that calls a cut supply, a stuck float or ice before the stock go without, and watches the mob that comes to drink: calvings, an animal down, a dog at the water. Water rules keep the float valve and its air gap (Northumbrian Water Guidance Note 9, BS 3445), the welfare rules ask for fresh, clean, unfrozen water every day, and farmers pay about A$749 for a trough monitor (Farmbot) before a flow sensor, a calving camera and a gateway.

   • Now part of FarmOne: https://iemilabs.com/products/farmone/

   See it in 3DFull research and design

2. 27 Oct 2026, 12:39A calving farmer needs the pens watched at night and the water in each pen kept running for the cow that has just calved. Calving-pen advice is a self-filling bowl in every pen, not buckets (Irish Farmers Journal), winter checklists say to check heated waterers and their cords (Penn State Extension), and advisers say a cow should be offered water as soon as possible after calving (TheCattleSite). Our own two products for a 4-pen barn cost $2,455 and $243 a year.

   • Combined into CalvingPen (https://iemilabs.com/products/calvingpen/); CalveClock itself is unchanged

   See it in 3DFull research and design

3. 25 Oct 2026, 21:28Every camera kit shows the cow but nobody times the labour → a clock per pen from the first water bag or feet, against the extension rule (30 min cows, 60 min heifers)

   • New design: 5 printed parts in code CAD, bought parts fit-checked
   • Market research, hardware list and use case written up
   • Design page and kit render published
   • Product page added

   See it in 3DFull research and design