Mist Maker
About the Mist Maker PCB
Mist Maker is an open source PCB design by Dav1dyang, published on GitHub under the MIT license. It is a 2-layer board measuring 50.8 × 26.7 mm, with 37 components from 25 distinct parts.
Other key parts include the TPS61023 and MCP73831T-2ACI/OT. By type, the board carries 13 resistors, 8 capacitors, 6 diodes, 3 LEDs, 2 ICs and 2 transistors.
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.
This folder is the original (and only) released revision of the Programmable Mist Maker, kept intact for anyone reproducing the kit as documented in the root README.md.
It has been superseded by the modular variant tree under ../../variants/. New work targets one of the four V0.x variants (Xiao Extension Kit, Battery Kit, Block Kit, I2C MultiPack Kit). V1.4 will not receive new firmware features.
Main components on the Mist Maker
Mist Maker bill of materials (BOM)
37 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS61023 | SOTFL50P160X60-6N | IC1 |
| 1 | MCP73831T-2ACI/OT | BATT_Charger_SOT-23-5_Min_Silk | U1 |
| 1 | BSS138 | SOT-23 | Q1 |
| 1 | AO3400A | SOT-23 | Q2 |
| 2 | PH-2PWB | PH2PWB | J4, J6 |
| 2 | C2286 LED_R | LED_0603_1608Metric | LED1, LED3 |
| 1 | C2290 LED_W | LED_0603_1608Metric | LED2 |
| 1 | MBR120 | D_SOD-123F | D2 |
| 2 | SMF6.0A | D_SOD-123F | D3, D4 |
| 2 | MBRS1100 | D_SMB_Min_Silk | D5, D7 |
| 1 | C20617916 D_TVS_Unidirectional_Generic | D_SOD-323_HandSoldering | D6 |
| 1 | XEL4030-102MEC | XEL4030102MEC | L1 |
| 3 | 22UF 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C3 |
| 1 | 100NF 100nF | C_0603_1608Metric | C4 |
| 2 | 10UF 10uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C5, C6 |
| 2 | 10UF 10uF | C_0805_2012Metric | C7, C8 |
| 1 | 10K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 732K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2 |
| 1 | 100K | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 2 | 10K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4, R5 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | 100K | R_0603_1608Metric | R6, R11, R13 |
| 1 | 1.5KΩ | R_0603_1608Metric | R7 |
| 1 | 10K | R_0805_2012Metric | R8 |
| 1 | 150Ω | R_0603_1608Metric | R9 |
| 2 | 2KΩ | R_0603_1608Metric | R10, R12 |
Mist Maker 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.
Mist Maker: common questions
How big is the Mist Maker PCB?
The Mist Maker measures 50.8 × 26.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Mist Maker?
37 components, from 25 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 Mist Maker 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 Mist Maker design in my own project?
Yes, under the terms of its MIT license, which Dav1dyang chose for the repository.
