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MistMaker-Battery-Kit

Dav1dyang·Programmable-Mist-Maker·variants/battery-kit/hardware/kicad/MistMaker-Battery-Kit-V0-4.kicad_pcb

MistMaker-Battery-Kit PCB layout, top view — open source board by Dav1dyang
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About the MistMaker-Battery-Kit PCB

MistMaker-Battery-Kit is an open source PCB design by Dav1dyang, published on GitHub under the MIT license. It is a 2-layer board measuring 38 × 25.1 mm, with 54 components from 36 distinct parts.

Other key parts include the TPS61023, TPS2116DRLR, LP4060B5F, AP7361C-3.3V and INA180A3. By type, the board carries 22 resistors, 12 capacitors, 6 ICs, 5 connectors, 3 LEDs and 2 transistors.

It belongs with the power & battery designs in this gallery.

From the project

An open-source, low-cost ultrasonic mist maker designed to share commercial humidifier circuits and empower creators with accessible, well-documented hardware.

As-fabbed files for the July 2026 production run (the boards sold in the shop). The KiCad project keeps the V0-4 file name — the V0.4.1 changes are edits inside it, and the production set here is the exact export that run was built from.

V0.4.1 (July 2026 production run, 15 pcs — current):

- R22 150 kΩ → 220 kΩ — D8's USB-detect logic-high moves ~2.6 V → ~3.1 V, widening the margin over the XIAO's VIH from 0.2 V to 0.66 V (the one bench-marginal number population spread could have tipped across a batch). - R8 pull-up → pull-down (to GND) — the ~5 V boost rail now boots OFF (LED2 dark until…

Main components on the MistMaker-Battery-Kit

TPS61023TPS2116DRLRLP4060B5FAP7361C-3.3VINA180A3UCC27511ADBV

MistMaker-Battery-Kit bill of materials (BOM)

54 components, 36 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TPS61023
IC1
1
TPS2116DRLR
IC2
1
LP4060B5F
U1
1
AP7361C-3.3V
U2
1
INA180A3
U3
1
UCC27511ADBV
U4
1
2N7002
Q1
1
DMT10H009LCG-7
Q4
2
CONN_01X07_SOCKET
Conn_01x07_Socket
J1, J10
2
PH-2PWB
J2, J3
1
C2845372
Qwiic_Vertical
J6
1
TS-1088-AR02016
S2
1
C965793
LED_G
LED1
1
C25503345
LED_R
LED2
1
C51933306
LED_W
LED3
1
PMEG10010ELRX-TP
D1
1
C49338546
3 Legged Inductor
L1
1
XEL4030-102MEC
L2
1
0.1UF
0.1uF
C1
5
10UF
10uF
C5, C6, C12, C15, C16
Show 16 more
QtyPartRefs
3
22UF
22uF
C7, C8, C9
1
1UF
1uF
C10
2
10UF
10uF
C13, C14
1
30mΩ
R1
1
10Ω
R2
1
2.2Ω
R3
2
30KΩ
R4, R15
3
5.1KΩ
R5, R6, R7
5
10KΩ
R8, R14, R16, R18, R19
1
150Ω
R9
1
1kΩ
R10
2
100KΩ
R11, R17
1
732K
R12
2
100K
R13, R21
1
22Ω
R20
1
220K
R22

MistMaker-Battery-Kit design files

The KiCad project lives in the Dav1dyang/Programmable-Mist-Maker repository on GitHub; these links point at the commit this page was built from.

MistMaker-Battery-Kit: common questions

How big is the MistMaker-Battery-Kit PCB?

The MistMaker-Battery-Kit measures 38 × 25.1 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the MistMaker-Battery-Kit?

54 components, from 36 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 MistMaker-Battery-Kit design files?

From the Dav1dyang/Programmable-Mist-Maker repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the MistMaker-Battery-Kit design in my own project?

Yes, under the terms of its MIT license, which Dav1dyang chose for the repository.

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