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2 layers74 × 77.5 mmMAAP-1, the printed circuit board in 3D

the dimensioning machine that does not requires you to sell your soul amount of money.

Size
74 × 77.5 mm
Copper layers
2
Thickness
1.6 mm
Parts
22
Nets
40
Pads
123
Tracks, vias
157, 9
Pours
1
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
19 Sep 2026
Updated
1 Oct 2026

Overview

MAAP-1 is an open-source printed circuit board by anshsinghcoder, from the anshsinghcoder/dimensioner-v1 repository on GitHub. It is a 2-layer board of 74 × 77.5 mm with 22 parts on 40 nets, routed with 157 tracks and 9 vias.

It is built around the ESP32-WROOM-32 and AMS1117-3.3. Its parts include 4 capacitors, 3 resistors, 3 connectors, 2 ICs and 2 switches. It belongs with the ESP32 boards of this library.

Main components

2

README

README.md

dimensioner v1

MAAP 1 is a automated DIM system that costs 10 times less compared to the current options . it is aluminum blasted but u can completely use fibre 3d printing for this . i have removed the wieging scale from research that most users dont need it.

Overview: MAAP-1 Utilizes a custom ESP32-based PCB, 3 LiDAR sensors to instantly calculate the length , height and width of any parcel . Designed for logistics, warehouses . i have included electronics components make sure u add it in your cad library. sorry though not much room for customisation many pins are used , feel free to play around with the scematics if u wish

  • it also features a camera system which snaps images along side the dim . how ever please make sure the camera module u use comes with a sd slot or just add a pin.

Hardware Architecture

  1. Custom PCB (KiCad) The brains of the operation is a custom PCB designed to be attached anywhere in the frame it has a 2 hole enclosure that is also included .

Microcontroller: ESP32-WROOM Power: 5V input, regulated to 3.3V via AMS1117 for logic.

  1. Mechanical Structure
  • T-slot aluminum extrusion holding the overhead LiDAR .
  • Dual forward-facing structural arms housing inward-facing LiDARs
  • control box housing the custom PCB, screen, buttons, and thermal printer.

Repository Structure

MAAP-1:

  • Firmware # PLEASE CALIBRATE AS PER NEEDS
  • Hardware # KiCad PCB design files, Schematics, and Gerbers
  • Mechanical # 3D files for the enclosure and arms PLEASE ADD THE PCB ENCLOSURE AND SCREEN WHERE YOU NEED .
  • README.md # Project documentation

Here is the complete Bill of Materials (BOM) to build your own. IF U WANT AMOUNTS IN DOLLARS PLEASE REFER TO BOM.CSV

ComponentQtyEst. PriceLink / Source
ESP32 WROOM-32 Dev Board1₹1850Robu.in
ESP32-CAM Module1₹2499Robu.in
VL53L0X ToF LiDAR Sensor3₹4500 (₹1499 each)Robu.in
1.3" I2C OLED Display (White)1₹299Robu.in
Mechanical Switch / Arcade Button1₹150Local Electronics Market
5V 3A Power Adapter1₹250Local Electronics Market
LED Strip / Ring Light (6000K)1₹150Local Electronics Market
Aluminum 2020 V-Slot Extrusions2m₹1000Local Hardware Supplier
Clear Polycarbonate/Acrylic Sheets1₹900Local Laser-Cutting Shop
Custom PCB (Matte Black + ENIG)5₹1850JLCPCB
Hardware Kit (T-Nuts, M4 Bolts, Brackets)1₹350Local Hardware Supplier
Screenshot 2026-09-20 234741
  • Total Estimated Build Cost: ~₹23,500 (approx. $235 USD)

Parts

22
QtyValueFootprintReferences
4Conn_01x04_PinConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Verticalj-thmprnt7, J4, J5, J6
2CCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mmC1, C3
2SW_PushButton_Switch_THT:SW_PUSH_6mmSW1, SW2
10.1ufCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mmC2
101x04_PinConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ2
110kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal10k-R2
110k-r1Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR1
110ufCapacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mmC4
11kResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR3
11x04_PinConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ3
12N2219Package_TO_SOT_THT:TO-39-3Q1
1330 OHMSResistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_HorizontalR2
14pin-usbConnector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_VerticalJ1
1AMS1117-3.3Package_TO_SOT_SMD:SOT-223-3_TabPin2U2
1BuzzerBuzzer_Beeper:Buzzer_12x9.5RM7.6BZ1
1ESP32-WROOM-32RF_Module:ESP32-WROOM-32U1
1LEDLED_THT:LED_D5.0mmD1

Questions

How big is the MAAP-1 PCB?

It measures 74 × 77.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the MAAP-1 use?

22 parts, built around the ESP32-WROOM-32 and AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the MAAP-1 KiCad files?

From the anshsinghcoder/dimensioner-v1 repository on GitHub, at the commit this page was made from: the board is hardware/MAAP-1.kicad_pcb and its schematic hardware/MAAP-1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the MAAP-1 design in my own project?

Its repository states no licence, so its author keeps all rights: ask anshsinghcoder before reusing the design.

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