2 layers43 × 26 mm
Cheddar
tperale/cheddar
:satellite: A ESP8266 connected button like the Amazon Dash but programmable
30 parts10CC-BY-SA-4.0
2 layers45 × 38 mm
Hum contr
VGCH/smart-humidifier3Smart controller for Xiaomi humidifier
- Size
- 45 × 38 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 33
- Pads
- 76
- Tracks, vias
- 198, 0
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 14 Jan 2024
- Updated
- 9 Mar 2025
Overview
Hum contr is an open-source printed circuit board by VGCH, from the VGCH/smart-humidifier repository on GitHub. It is a 2-layer board of 45 × 38 mm with 20 parts on 33 nets, routed with 198 tracks and 0 vias.
It is built around the ESP-12E, EL817 and HT7333. Its parts include 12 resistors, 6 ICs, 1 capacitor and 1 connector. It belongs with the ESP8266 boards of this library.
Main components
3
ESP-12E
SMD,24x16mm-20℃~+70℃ -90dBm 16dBm 170mA 2.4GHz 3V~3.6V 56mA 802.11b/g/n ESP8266 Chip On-board PCB Antenna Over-the-air (OTA) update UART、SPI、I2C SMD,24x16mm WiFi Modules ROHSAi-ThinkerWiFi Modules
EL817
DIP-4-55℃~+110℃ 1 1.2V 100mV@20mA,1mA 18us 18us 5.8mA 50% 50V 5kV 600% 9V Phototransistor DIP-4 Transistor, Photovoltaic Output Optoisolators ROHSEverlight ElectronicsTransistor, Photovoltaic Output Optoisolators
HT7333
SOT-89-40℃~+85℃ 1 1.5uA 20V 3.3V 300mA 300mV@(100mA) Fixed Positive Short Circuit Protection SOT-89 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSMinosVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdМодуль для управления увлажнителем с возможностью интеграции в Home Assistant
Разработан для увлажнителей Deerma Humidifier DEM-F628S / DEXP HD-440
Скриншот автоматического определения устройства с помощью MQTT Auto Discovery
Полное описание проекта смотрите на Хабре
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 100 | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R7 |
| 4 | 125к | Resistor_SMD:R_0805_2012Metric | R8, R9, R10, R11 |
| 4 | EL817 | Package_DIP:DIP-4_W7.62mm | U3, U4, U5, U6 |
| 1 | 1к | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | 200uF | Capacitor_SMD:CP_Elec_6.3x4.9 | C2 |
| 1 | 4.7к | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | ESP-12E | RF_Module:ESP-12E | U1 |
| 1 | HT7333 | Package_TO_SOT_SMD:SOT-23 | U10 |
| 1 | ~ | TerminalBlock_4Ucon:TerminalBlock_4Ucon_1x09_P3.50mm_Horizontal | J2 |
Questions
How big is the Hum contr PCB?
It measures 45 × 38 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hum contr use?
20 parts, built around the ESP-12E, EL817 and HT7333. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Hum contr KiCad files?
From the VGCH/smart-humidifier repository on GitHub, at the commit this page was made from: the board is hum_contr/hum_contr.kicad_pcb and its schematic hum_contr/hum_contr.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hum contr design in my own project?
Its repository states no licence, so its author keeps all rights: ask VGCH before reusing the design.
Similar boards
- 2 layers70 × 44 mm
- 2 layers50.8 × 38.2 mm
- 2 layers58.4 × 54 mm
- 2 layers71.4 × 66.2 mm
- 4 layers97.6 × 145.1 mm
Analog and ad9958
balmerdx/BalmerDX_VNA
Vector Network Analyzer 10 KHz - 180 MHz
226 parts26BSD-2-Clause - 2 layers80 × 65 mm
- 2 layers66 × 57 mm
