GitHub open source21
chaac - STM32L412 ChaacNG主开发板
BOM013867 · chaac-ng-e8e6087
What the project is · as the catalogue files it; the circuit functions below are BOM rule hits
Filed under “嵌入式系统” in the ezPLM catalogue. Read the project’s own description (README)
Circuit functions included · BOM rule hits · not reviewed
- Boost regulator
- U6 TPS61252DSG · by part number
- Low-dropout regulator (LDO)
- U3 TPS76333 · by part number
- Battery charger
- U2 BQ24074RGT · by part number
- Arm Cortex-M MCU
- U5 STM32L412KBTx · by part number
- LoRa / LoRaWAN
- U1 E22-X00M22S · by part number
- RS-232
- U4 MAX3221 · by part number
Helper circuits
- Power input connector
- J1 Battery · by footprint
- Debug / programming header
- J3 TC2030-CTX · by part number
- Crystal / oscillator
- Y1 32.768kHz · by part number
- USB connector (Type-C / Micro / A)
- J5 USB_C_Receptacle_USB2.0_16P · by part number
Online view
Loading the project view…
39 rows · 79 parts0 of 39 rows placedHover or click a row to mark its parts in the view; click a part in the view to find its row.
Looks up part numbers and makers at ezPLM, DigiKey and Mouser. What it finds are suggestions: check one before you use it.
| Designators | Value | Part | Qty | ||
|---|---|---|---|---|---|
| C1, C2, C4, C5, C6, C7, C12, C13, C14, C17, C20, C22 | 0.1uFC_0402_1005Metric | No part number | 12 | ||
| C3, C9, C15 | 1uFC_0402_1005Metric | No part number | 3 | ||
| C8, C19 | 4.7uFC_0402_1005Metric | No part number | 2 | ||
| C10, C11 | 12pfC_0402_1005Metric | No part number | 2 | ||
| C16 | 10uFC_0603_1608Metric | No part number | 1 | ||
| C18 | 0.01uFC_0402_1005Metric | No part number | 1 | ||
| C21 | 100pFC_0402_1005Metric | No part number | 1 | ||
| C23 | 22uFC_1210_3225Metric | No part number | 1 | ||
| R1, R2, R3, R4 | 1MR_0402_1005Metric | No part number | 4 | ||
| R5, R6 | 5.1kR_0402_1005Metric | No part number | 2 | ||
| R7, R12, R13, R16, R17, R20, R25, R27 | 10kR_0402_1005Metric | No part number | 8 | ||
| R8, R10, R11, R14, R15, R19, R21 | 0R_0402_1005Metric | No part number | 7 | ||
| R9 | 1kR_0402_1005Metric | No part number | 1 | ||
| R18 | 1.5kR_0402_1005Metric | No part number | 1 | ||
| R22 | 6.65kR_0402_1005Metric | No part number | 1 | ||
| R23 | 750kR_0402_1005Metric | No part number | 1 | ||
| R24 | 180kR_0402_1005Metric | No part number | 1 | ||
| R26 | 866kR_0402_1005Metric | No part number | 1 | ||
| R28 | 43kR_0402_1005Metric | No part number | 1 | ||
| L1 | 1uHL_0806 | No part number | 1 | ||
| D1, D2 | SK520CHSK520_DO-214AB | No part number | 2 | ||
| D3, D4, D5, D6 | LEDLED_0603_1608Metric | No part number | 4 | ||
| U1 | E22-X00M22SE22-X00M22S | No part number | 1 | ||
| U2 | BQ24074RGTVQFN-16-1EP_3x3mm_P0.5mm_EP1.6x1.6mm | No part number | 1 | ||
| U3 | TPS76333SOT-23-5 | No part number | 1 | ||
| U4 | MAX3221TSSOP-16_4.4x5mm_P0.65mm | No part number | 1 | ||
| U5 | STM32L412KBTxLQFP-32_7x7mm_P0.8mm | No part number | 1 | ||
| U6 | TPS61252DSGWSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | No part number | 1 | ||
| Y1 | 32.768kHzABS05 | No part number | 1 | ||
| SW1, SW2 | SW_PushSW-SMD_L3.9-W3.0-P4.45 | No part number | 2 | ||
| G*** | LOGOweather_station_tiny | No part number | 1 | ||
| G*** | LOGOweather_station | No part number | 1 | ||
| H1, H2, H3, H4 | MountingHoleInterface labelMountingHole_3.2mm_M3 | No part number | 4 | ||
| J1 | BatteryInterface labelS2B-PH-SM4-TB | No part number | 1 | ||
| J2 | SolarInterface labelTerminalBlock_TE_282834-2_1x02_P2.54mm_Horizontal | No part number | 1 | ||
| J3 | TC2030-CTXTC2030-NL | No part number | 1 | ||
| J4 | DATAInterface labelTerminalBlock_TE_282834-4_1x04_P2.54mm_Horizontal | No part number | 1 | ||
| J5 | USB_C_Receptacle_USB2.0_16PUSB-C-SMD_TYPE-C16PIN | No part number | 1 | ||
| J6 | 6V_PWRTerminalBlock_TE_282834-2_1x02_P2.54mm_Horizontal | No part number | 1 |