OpenAmpMeter
dianventer
A Low Cost ESP32 C3 based current meter. Hardware is availble in two versions. Firmware currently in progress. Webapp and server code to come soon
Components (17)
| Reference | Value | Description |
|---|---|---|
| U1 | ESP32-C3 | |
| U2 | AMS1117-3.3 | |
| U3 | TPD4EUSB30 | |
| C1,C2 | 3.3pF | |
| C3,C4 | 10pF | |
| C5-C8,C10,C11,C13,C16-C18 | 100nF 25V | |
| C9,C12,C14,C15,C19 | 10uF | |
| D2 | LED_GBAR | |
| J2 | USB_C_Receptacle | |
| J3 | AudioJack4 | |
| L1,L2 | 2.2nH | |
| R1 | 22R | |
| R2-R6 | 5K1 | |
| R7-R9 | 100 | |
| R10,R11 | 1K | |
| SW1-SW3 | SW_Push | |
| Y2 | Crystal_GND24 |