HardLabs

Proxiwave-D

ampnics·Proxiwave-D·Hardware/PWD-v010A/PWD-v010A.kicad_pcb

Proxiwave-D PCB layout, top view — open source AVR/Arduino board by ampnics

About the Proxiwave-D PCB

Proxiwave-D is an open source AVR/Arduino PCB design by ampnics, published on GitHub. It is a 2-layer board measuring 50 × 100 mm, with 44 components from 29 distinct parts.

Its main chip is the ATmega328-A, from the AVR/Arduino family. Other key parts include the VL53L0CXV0DH1 and AMS1117-3.3. By type, the board carries 14 resistors, 11 capacitors, 4 diodes, 3 ICs, 3 connectors and 2 transistors.

From the project

A contactless doorbell for residental purposes

- Overview - Features - How It Works - Hardware Specifications - GPIO Mapping - Pin Description - Repository Structure - Getting Started - Firmware Setup - Calibration - Manufacturing - Safety Warning - Contributing - Support Us - Connect With Us - License

The ProxiWave-D is an open-source, touchless proximity relay controller designed for contactless switching of 220VAC loads. It uses a VL53L0X Time-of-Flight (ToF) distance sensor to detect hand proximity within a calibrated range of 10mm to 30mm, triggering an onboard relay to switch AC loads — no physical contact required.

Proxiwave-D, from the project README
From the project README

Main components on the Proxiwave-D

VL53L0CXV0DH1AMS1117-3.3ATmega328-A

Proxiwave-D bill of materials (BOM)

44 components, 29 distinct parts.

QtyPartRefs
1
VL53L0CXV0DH1
U1
1
AMS1117-3.3
U2
1
ATmega328-A
U3
2
AO3400A
Q1, Q2
1
8MHz
Y1
1
Screw_Terminal_01x05
J1
1
Conn_02x03_Odd_Even
J2
1
B3B-XH-A
Conn_01x03_Pin
J3
1
0.5A/250Vac
F1
1
G5LE-1
K1
1
MLT-8530
LS1
1
HLK-5M05
PS1
1
10D561K
RV1
1
SW_Push
SW1
1
1N4148W
D1
1
BLUE
D2
1
RED
D3
1
GREEN
D4
1
0.1uF
C1
5
100nF
C2, C5, C7, C10, C11
Show 9 more
QtyPartRefs
1
220uF
C3
1
4.7uF
C4
2
10uF
C6, C9
1
1uF
C8
4
10K
R1, R6, R10, R12
5
4K7
R2, R3, R4, R7, R13
2
1K
R5, R8
2
0R
R9, R11
1
330R
R14

Proxiwave-D design files

The KiCad project lives in the ampnics/Proxiwave-D repository on GitHub; these links point at the commit this page was built from.

Proxiwave-D: common questions

What microcontroller does the Proxiwave-D use?

The Proxiwave-D is built around the ATmega328-A, from the AVR/Arduino family.

How big is the Proxiwave-D PCB?

The Proxiwave-D measures 50 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Proxiwave-D?

44 components, from 29 distinct parts. The full bill of materials is listed on this page.

Where can I download the Proxiwave-D design files?

From the ampnics/Proxiwave-D repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Proxiwave-D design in my own project?

The repository has no license, so all rights stay with ampnics. Use it as a reference, and ask the author before reusing the design.

Can I test firmware for the Proxiwave-D without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug AVR/Arduino firmware against it before you order a PCB.

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