HardLabs

GlowBand

LEDs-by-glowingkitty·GlowBand·GlowBand PCB/GlowBand PCB.kicad_pcb

GlowBand PCB layout, top view — open source ESP32 board by LEDs-by-glowingkitty

About the GlowBand PCB

GlowBand is an open source ESP32 PCB design by LEDs-by-glowingkitty, published on GitHub under the MIT license. It is a 2-layer board measuring 27.9 × 34.3 mm, with 76 components from 31 distinct parts.

Its main chip is the ESP32-S3-MINI-1-N8, from the ESP32 family. Other key parts include the SN74LVC1G373DBVR, PTVSHC3N12VU, AP40P05, AO3400A and SN74LVC2T45DCUR. By type, the board carries 20 connectors, 19 capacitors, 18 resistors, 13 ICs, 3 switches and 1 inductor.

From the project

GlowBand is an exciting LED wristband. For dancing at parties and festivals, for long-time exposure photography, and for everyday situations that need some light.

GlowBand is an exciting LED wristband. For dancing at parties and festivals, for long-time exposure photography, and for everyday situations that need some light.

This project started as "The Glowing Arms Project" (check out the "GlowBand v0.1" folder) and after experimenting with making the project smaller and based on existing PCBs ("GlowBand v0.2" folder) I decided to instead make a custom PCB design ("GlowBand v1.0"). The PCB design is still in development, but I plan to finish the design in the coming months. Stay tuned!

Main components on the GlowBand

SN74LVC1G373DBVRPTVSHC3N12VUAP40P05ESP32-S3-MINI-1-N8AO3400ASN74LVC2T45DCURLSM6DS3TR-CMSM261D4030H1CPMSPX3819M5-L-3-3_TRSK9822-EC2074LVC2G04DW-7

GlowBand bill of materials (BOM)

76 components, 31 distinct parts.

QtyPartRefs
1
SN74LVC1G373DBVR
U1
1
PTVSHC3N12VU
U2
3
AP40P05
U3, U5, U7
1
ESP32-S3-MINI-1-N8
U4
1
AO3400A
U6
1
SN74LVC2T45DCUR
U8
1
LSM6DS3TR-C
U9
1
MSM261D4030H1CPM
U10
1
SPX3819M5-L-3-3_TR
U11
1
SK9822-EC20
U12
1
74LVC2G04DW-7
U13
19
Solder_Pad
P1, P2, P3, P4, P5, P6, P7, P8 +11
1
Magnetic_Pogopin_4pin_female
P9
1
LP803030
B1
1
RT9471DGQW
REF1
2
TS24CA
SW1, SW2
1
TS-1185EC-C-D-B
SW3
1
WPN4020H1R0MT
L1
1
1uF
C1
9
10uF
C2, C4, C7, C8, C9, C11, C15, C16 +1
Show 11 more
QtyPartRefs
1
220uF
C3
1
4.7uF
C5
1
47nF
C6
5
0.1uF
C10, C12, C13, C14, C17
1
10nF
C18
6
10K
R1, R2, R3, R4, R7, R8
8
100K
R5, R6, R9, R10, R12, R14, R15, R17
1
160K
R11
1
62
R13
1
33K
R16
1
5.1K
R18

GlowBand design files

The KiCad project lives in the LEDs-by-glowingkitty/GlowBand repository on GitHub; these links point at the commit this page was built from.

GlowBand: common questions

What microcontroller does the GlowBand use?

The GlowBand is built around the ESP32-S3-MINI-1-N8, from the ESP32 family.

How big is the GlowBand PCB?

The GlowBand measures 27.9 × 34.3 mm, has 2 copper layers and is 1.09 mm thick.

How many components are on the GlowBand?

76 components, from 31 distinct parts. The full bill of materials is listed on this page.

Where can I download the GlowBand design files?

From the LEDs-by-glowingkitty/GlowBand repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the GlowBand design in my own project?

Yes, under the terms of its MIT license, which LEDs-by-glowingkitty chose for the repository.

Can I test firmware for the GlowBand without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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