mini-current-meter
hnz1102
Mini Current Meter using INA228A ultra-precise digital power monitor
Components (29)
| Reference | Value | Description |
|---|---|---|
| Q102 | SSM3J332R | MOSFET P-CH 30V 6A SOT23F |
| U101 | ESP32-C3-WROOM-02-N4 | |
| U102 | SPX3819M5-L/TR | |
| U103 | SSD1306_DISPLAY | |
| U104 | MCP73831-2-OT | Single cell, Li-Ion/Li-Po charge management controller, 4.20V, Tri-State Status Output, in SOT23-5 package |
| U302 | INA228 | High-Side or Low-Side Measurement, Bi-Directional Current and Power Monitor (0-85V) with I2C Compatible Interface, VSSOP-10 |
| C108 | 4.7uF | |
| C109,C113 | 1uF | |
| C111,C304 | 0.1uF | Unpolarized capacitor |
| C112 | 10uF | |
| D102 | LED RED | Light emitting diode |
| D103 | LED GREEN | Light emitting diode |
| D104 | CUS10F30 | |
| FB101 | MH2029-601Y | |
| J101 | USB4105-GF-A | |
| J102 | Conn_01x03 | Generic connector, single row, 01x03, script generated (kicad-library-utils/schlib/autogen/connector/) |
| J103 | LiPo BATTERY | |
| R103,R104 | 5.1K | |
| R106,R120,R121 | 20K 1% | |
| R107 | 12K 1% | |
| R108,R110,R202,R302-R304 | 10K | Resistor |
| R115 | 2K | |
| R118,R119 | 330 | |
| R122 | 100K | |
| R308 | 5m | Resistor 10mOhm |
| SW105 | SLIDE_SW | |
| SW201 | 3.5x2.6 Tact SW | WS-TASV SMT Tact Switch |
| TP101 | GND | test point |
| TP202 | BOOT | test point |