TrapTop

How it fits together

TrapTop, 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

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1. 01

   The whole TrapTop

   A camera head on a moth trap photographs the sticky liner twice a day, counts new moths and sends the count by LoRaWAN.

2. 02Brain

   XIAO ESP32S3 Sense

   The brain: it runs the traptop head firmware program

3. 03

   OV5640 wide camera

   Photographs the whole liner at 5 MP from above

   XIAO ESP32S3 Sense · Camera flex cable · 2592×1944 photos

4. 04

   Two warm-white LEDs

   Light the liner from the side, so it does not glare

   XIAO ESP32S3 Sense · GPIO pin · LED on for 0.3 s

5. 05

   SHT40 climate sensor

   Reads temperature at the trap for degree-day counts

   XIAO ESP32S3 Sense · I²C (4 wires) · Temperature and humidity

6. 

   06

   Bucket-trap beam gate

   Counts moths falling past two infrared beam planes

   RAK3172 · 6-core cable · Beam breaks, in or out

7. 

   07

   RAK3272S LoRa radio

   Wakes the camera on schedule and sends counts by LoRaWAN

   XIAO ESP32S3 Sense · UART + wake switch · Counts and thumbnails

8. 

   08

   Two AA lithium cells

   Run the head for a season on under 1 mAh a day

   XIAO ESP32S3 Sense · Power lead via TPS63802 · 3.3 V power

9. 09

   All connected

   7 key parts, one program, and your phone

The idea

A camera head on the grower's own delta trap counts the new moths each day and texts each block's count

How the parts connect

TrapTop, 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 TrapTop

void loop() {
  digitalWrite(LED_PIN, HIGH); delay(300);
  camera_fb_t *fb = esp_camera_fb_get();     // 2592 x 1944 JPEG in PSRAM
  digitalWrite(LED_PIN, LOW);
  Image now = decode(fb);
  register_to(now, lastPhoto);               // liner corners + printed grid
  for (Blob &b : moth_sized_changes(now, lastPhoto)) {
    Label l = classify(crop(now, b));        // int8 model
    if (l != NOT_A_MOTH) report.add(l, b.conf);
  }
  report.temp_c = sht40.readTemperature();
  radio.send(report.pack11());               // port 10, 11 bytes
  goToSleep();                               // radio chip wakes us later
}

To your phone

How the data reaches TrapTop scout app

Scout's phone and text messages

1. Trap head
2. LoRaWAN
3. Co-op gateway
4. Network server · MQTT
5. IEMI cloud and app

Key specs

Targets for production units; they may change during development.

Pricing

Target pricing: $129 per head, $49 Gate add-on. Estimated BOM about $59 per head and $27 per Gate at qty 1 (about $30 per head at qty 1,000). The grower's own trap, lures, liners and a shared LoRaWAN gateway are not included.

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

1. 29 Oct 2026, 15:10LatestOrchard scouts read codling moth traps weekly and act at 5 or more moths per trap per week, while camera traps sell as their own trap at about $2,400 each (TrapTop DESIGN.md market check: extension guidance, Trapview, FarmSense).

   • Drawn idea plan (idea.json): an apple orchard from above, with four blocks of tree rows, the farm track, the packing shed and a maize field next door; pins for TrapTop heads on the delta traps in blocks 1 and 4, the beam gate in the bucket trap by the maize, the co-op gateway on the shed and the grower's and scout's phones
   • The product picture is now this drawn plan instead of the plain fallback card; drawn from the design notes, not the CAD
   • What the plan keeps from the market work: the trap, lure and liner stay the grower's own, and each block gets its own count against the spray threshold
   • Next: close-out C9 (recommend the first product to the owner) from 30 Oct 00:00; until then more drawn idea plans for catalogue products

   See it in 3DFull research and design

2. 27 Oct 2026, 05:10A mixed farm with an orchard next to its stock paddock pays for a frost alarm, a trough monitor, a crop-raid flasher and a pest-trap camera, each with its own pole, power and app. Commercial versions cost about $389–1,252 for a frost alarm (Onset, fruitweb), A$749–1,290 for a trough monitor (Farmbot) and about $2,700 for a trap camera (iScout, Perennia).

   • Combined into FarmMast (https://iemilabs.com/products/farmmast/); TrapTop itself is unchanged

   See it in 3DFull research and design

3. 25 Oct 2026, 20:24Camera traps sell as their own trap at about $2,400 (Trapview) → TrapTop uses the $7 delta trap the grower already owns: one slot cut at the ridge, 4 zip ties, and the trap hangs from the head

   • New design: 3 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