로라 통신 온도센서 설계

0:00

Work done

Component placement:
- U1 (E22-900T22S1B LoRa module)
- U2 (STM32G030J6M6 MCU)
- U3 (SHT40-AD1B-R2 sensor)
- BT1 (Battery Holder Keystone 1076 1xAAA)
- U4 (TPS613221ADBV boost converter)
- J1 (SMW250-04P SWD header)
- J2 (U.FL-R-SMT antenna connector)
Power & signal integration:
- [BT1]→[U4] input, [U4]→3V3 net with decoupling caps C1, C2
- UART TX/RX between [U2] and [U1]
- GPIO (AUX, M0, M1) from [U1] to [U2]
- I²C SDA/SCL between [U2] and [U3] with 4.7 kΩ pull-ups R1, R2 to 3.3 V
- SWDIO, SWDCLK, VCC, GND routed from [U2] to [J1]

Cannot do

Fetch ERC/DRC results
Position [U1] and [J2] at board edge for RF optimization
Define RF keepout zones and add ground stitching
Route 50 Ω microstrip from [U1]:ANT to [J2]
Isolate boost converter from RF area

Success criteria

✅ Complete schematic: all specified components placed and connected
✅ Power & signal nets implemented (battery boost, UART, I²C with pull-ups, SWD)
❌ RF layout practices not yet addressed (placement, keepouts, microstrip, isolation)

Next step Proceed to PCB layout: configure stack-up and layout rules, place footprints on the board, and implement RF considerations (edge placement, keepout zones, ground stitching, 50 Ω trace, and converter isolation).

Reviews

Generic Inductor
A generic fixed inductor suitable for rapid circuit topology development. The footprint automatically adapts based on the selected package, supporting standard SMD sizes (e.g., 0402, 0603, 0805) as well as well-known inductor packages such as SDR1806, PA4320, SRN6028, and SRR1260. Standard inductor values: 1.0 nH, 10 nH, 100 nH, 1.0 µH, 10 µH, 100 µH, 1.0 mH 1.2 nH, 12 nH, 120 nH, 1.2 µH, 12 µH, 120 µH, 1.2 mH 1.5 nH, 15 nH, 150 nH, 1.5 µH, 15 µH, 150 µH, 1.5 mH 1.8 nH, 18 nH, 180 nH, 1.8 µH, 18 µH, 180 µH, 1.8 mH 2.2 nH, 22 nH, 220 nH, 2.2 µH, 22 µH, 220 µH, 2.2 mH 2.7 nH, 27 nH, 270 nH, 2.7 µH, 27 µH, 270 µH, 2.7 mH 3.3 nH, 33 nH, 330 nH, 3.3 µH, 33 µH, 330 µH, 3.3 mH 3.9 nH, 39 nH, 390 nH, 3.9 µH, 39 µH, 390 µH, 3.9 mH 4.7 nH, 47 nH, 470 nH, 4.7 µH, 47 µH, 470 µH, 4.7 mH 5.6 nH, 56 nH, 560 nH, 5.6 µH, 56 µH, 560 µH, 5.6 mH 6.8 nH, 68 nH, 680 nH, 6.8 µH, 68 µH, 680 µH, 6.8 mH 8.2 nH, 82 nH, 820 nH, 8.2 µH, 82 µH, 820 µH, 8.2 mH #generics #CommonPartsLibrary
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Generic Capacitor
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