Project pack · v1.0.0
Battery Climate Sensor
ESP32-C6 temperature and humidity sensor for Home Assistant: SHT40 on a thermally isolated tongue, LiPo charging with MCP73831, low-quiescent regulator, Qwiic connector.
| Part | Footprint | LCSC |
|---|---|---|
| CX5R 16 V, basic part | C_0603_1608Metric | C15849 |
| CX5R 25 V, bulk, basic part | C_0805_2012Metric | C15850 |
| CX7R 50 V, decoupling, basic part | C_0603_1608Metric | C14663 |
| Conn_01x02S2B-PH-SM4-TB, LiPo packs; polarity varies by seller, check; extended part | JST_PH_S2B-PH-SM4-TB_1x02-1MP_P2.00mm_Horizontal | C295747 |
| Conn_01x04I²C, 1 mm pitch, extended part | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | C160404 |
| USB_C_Receptacle_USB2.0_16PUSB 2.0, 16 pin, SMD + THT legs, extended part | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | C165948 |
| D_Schottky | D_SOD-123 | C8598 |
| LED~2 V, 20 mA max, basic part | LED_0603_1608Metric | C2286 |
| MountingHole2.2 mm hole | MountingHole_2.2mm_M2 | — |
| ESP32-C6-MINI-1Wi-Fi 6 + BLE 5 + 802.15.4 | ESP32-C6-MINI-1 | C6553337 |
| AP2112K-3.3600 mA, 2 µA quiescent, pin-compatible with AP2112K, extended part | SOT-23-5 | C841192 |
| MCP73831-2-OT4.2 V, up to 500 mA (I = 1000 V / R_PROG), extended part | SOT-23-5 | C424093 |
| USBLC6-2SC6ST, D+/D− and VBUS clamp, extended part | SOT-23-6 | C7519 |
| R1%, 1/10 W, basic part | R_0603_1608Metric | C23186 |
| R1%, 1/10 W, basic part | R_0603_1608Metric | C25804 |
| R1%, 1/10 W, basic part | R_0603_1608Metric | C23162 |
| R1%, 1/10 W, basic part | R_0603_1608Metric | C21190 |
| R1%, 1/10 W, battery divider / weak pull-down, basic part | R_0603_1608Metric | C25803 |
| SHT4xI²C address 0x44, 1.08-3.6 V, extended part | Sensirion_DFN-4_1.5x1.5mm_P0.8mm_SHT4x_NoCentralPad | C2909890 |
| SW_Pushreset / boot button, basic part | SW_Push_1P1T_XKB_TS-1187A | C318884 |
| AO3401A−30 V 4 A, power switching, basic part | SOT-23 | C15127 |