Smart Humidifier Circuit Design
1:45
1. Microcontroller
| Part | UID | Package | Notes |
|---|---|---|---|
| ATMEGA328P-AU | e396ee72-… | 32-TQFP | Classic Arduino MCU, 5 V |
2. Bluetooth module
| Part | UID | Package | Notes |
|---|---|---|---|
| HC-05 | 29452d41-… | castellated | UART SPP module, 3.3 V |
3. 3 V3 LDO
| Part | UID | Package | Notes |
|---|---|---|---|
| AMS1117-3.3 | 27d693e5-… | SOT-223 | 1 A, fixed 3.3 V |
4. Logic-level MOSFET
| Part | UID | Package | Notes |
|---|---|---|---|
| IRLML6344TRPBF | 7662a93a-… | SOT-23 | 30 V / 5 A, low RDS(on) |
5. Flyback Schottky
| Part | UID | Package | Notes |
|---|---|---|---|
| SS14 | 2e54e12e-… | SMA | 40 V / 1 A diode |
6. USB-C power receptacle
| Part | UID | Package | Notes |
|---|---|---|---|
| USB4105-GF-A | e144d1e5-… | SMT | Power-only Type-C |
7. JST-PH 2-pin header
| Part | UID | Package | Notes |
|---|---|---|---|
| S2B-PH-K-S(LF)(SN) | 661cb02b-… | Right-angle TH | 2 mm pitch, loads |
8. 0603 passives (examples)
| Function | Part | UID |
|---|---|---|
| 100 nF X7R 16 V | GRM188R61C104KA57D | auto |
| 1 kΩ ±1 % | TE Connectivity 1 kΩ 0603 | 7da4eea6-… |
Ready.
Reviews
Properties
Properties describe core aspects of the project.
Pricing & Availability
Distributor | Qty 1 |
|---|---|
Arrow | $2.34–$2.80 |
Digi-Key | $1.71–$5.01 |
LCSC | $3.19–$4.84 |
Mouser | $4.02–$4.08 |
Verical | $2.35–$5.56 |
Assets
No assets added.
Controls
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