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Defcon27-Badge

dczia·Defcon27-Badge·Hardware/laser-theremin.kicad_pcb

Defcon27-Badge PCB layout, top view — open source Nordic nRF board by dczia
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About the Defcon27-Badge PCB

Defcon27-Badge is an open source Nordic nRF PCB design by dczia, published on GitHub. It is a 2-layer board measuring 3.2 × 3.2 mm, with 90 components from 45 distinct parts.

Its main chip is the BMD-340, from the Nordic nRF family. Other key parts include the XC6221A282MR-G, PAM2305DABADJ, VL6180X and LM4861. By type, the board carries 31 resistors, 18 capacitors, 13 diodes, 7 connectors, 7 switches and 6 ICs.

It belongs with the audio, wearables and displays & leds designs in this gallery.

From the project

DCZia Defcon27 Laser Theremin Synthesizer Badge - 2019

This year we wanted to do something different. Our idea is to use two laser time of flight sensors that can measure the distance of your hands moving around infront of the badge to control a synthesizer to create a laser theremin.

- 64Mhz Arm CortexM4F with Bluetooth 5 - 5 Mechanical Clicky Low Profile Key Switches - Rotary Encoder with Click Button - OLED Display - Onboard Speaker and Amplifier! - 1/8" Headphone Out Audio Jack - SD Card Storage - RGB Leds - 2 SAO / "Shitty Add-On" Connectors

Defcon27-Badge, from the project README
From the project README

Main components on the Defcon27-Badge

XC6221A282MR-GPAM2305DABADJBMD-340VL6180XLM4861

Defcon27-Badge bill of materials (BOM)

90 components, 45 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
XC6221A282MR-G
U1
1
PAM2305DABADJ
U2
1
BMD-340
U3
2
VL6180X
U4, U5
1
LM4861
U6
1
NCE3407A
FDN360P
Q1
2
BSS138
Q2, Q3
2
Badgelife_sao_connector_v169bis
X1, X2
1
JTAG
J1
1
TF-01
Micro_SD_Card_SPI
J2
1
USB_B_Micro
J3
1
Audio Out
J4
1
Rack2
J5
1
OLED
J7
1
Rack1
J9
1
Battery
BT1
1
Speaker
LS1
1
JS102011SAQN
Power
SW1
5
SW_Push
SW2, SW3, SW4, SW5, SW6
1
Volume
SW7
Show 25 more
QtyPartRefs
3
B5819W
D_Schottky
D1, D12, D13
1
CESD5V0AP
SP0503BAHT
D2
2
1N4148
D3, D4
2
SK6812
D5, D6
5
LED
D7, D8, D9, D10, D11
1
4.7uH
L1
7
0.1uF
C1, C2, C7, C10, C16, C17, C18
3
1UF
1uF
C3, C5, C15
2
4.7UF
4.7uF
C4, C6
1
22UF
22uF
C8
1
1NF
1nF
C9
1
10NF
10nF
C11
2
47PF
47pF
C12, C13
1
0.33UF
0.33uF
C14
13
10K
10k
R1, R2, R3, R6, R7, R13, R14, R15 +5
1
806K
806k
R4
1
2M
R5
2
47K
47k
R8, R9
2
27R
R10, R11
1
1k
R12
2
20K
20k
R20, R31
2
4.7k
R21, R22
1
540k
R23
1
120k
R24
5
33R
R26, R27, R28, R29, R30

Defcon27-Badge design files

The KiCad project lives in the dczia/Defcon27-Badge repository on GitHub; these links point at the commit this page was built from.

Defcon27-Badge: common questions

What microcontroller does the Defcon27-Badge use?

The Defcon27-Badge is built around the BMD-340, from the Nordic nRF family.

How big is the Defcon27-Badge PCB?

The Defcon27-Badge measures 3.2 × 3.2 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Defcon27-Badge?

90 components, from 45 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Defcon27-Badge design files?

From the dczia/Defcon27-Badge repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Defcon27-Badge design in my own project?

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

Can I test firmware for the Defcon27-Badge without the hardware?

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

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