
SAPI LoRa Arduino Shield V1.0
alexandreberg/SAPI_an_open_source_FEWS
Open-source flood early warning system: LoRa water-level and rain stations, gateway, web dashboard and LightGBM/MLR forecasts. Master's dissertation (IFSC, Brazil).

Open-source flood early warning system: LoRa water-level and rain stations, gateway, web dashboard and LightGBM/MLR forecasts. Master's dissertation (IFSC, Brazil).
RainGauge ST Morpho Shield V1.2 is an open-source printed circuit board by alexandreberg, from the alexandreberg/SAPI_an_open_source_FEWS repository on GitHub, published under the AGPL-3.0 licence. It is a 2-layer board of 84 × 84.5 mm with 59 parts on 109 nets, routed with 337 tracks and 83 vias.
It is built around the 74HC166D, CD4040BM and TIL113, with the SS36 among its other parts. Its parts include 10 connectors, 9 capacitors, 7 resistors, 7 ICs and 2 diodes. It belongs with the radio and wireless and home automation and IoT boards and the ESP32 and STM32 boards of this library.
Flood Early Warning System — a low-cost, open-source, LoRa-based platform for water-level and rainfall monitoring, machine-learning flood forecasting and multi-channel alerts, developed and validated as a Master's dissertation project (IFSC, Florianópolis, Brazil).
| Language | File |
|---|---|
| 🇬🇧 English | README-en.md |
| 🇧🇷 Português | README-pt.md |
Note / Nota — The code, comments and most technical documentation in this repository are in English; the README and some documents in
docs/are also in Portuguese, the language of the dissertation.O código, os comentários e a maior parte da documentação técnica deste repositório estão em inglês; o README e alguns documentos em
docs/estão também em português, o idioma da dissertação.
docs/system-overview.mdCHANGELOG.mdpredictive-models/docs/PROVENANCE.mdSoftware: AGPL-3.0-or-later · Hardware (hardware/):
CERN-OHL-S-2.0 · Third-party credits / Créditos: NOTICE
Copyright (C) 2024–2026 Alexandre Nuernberg.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 1uF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C1, C2, C3, C4, C5, C7, C8 |
| 3 | Jumper_2_Open | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP3, JP11, JP12 |
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 3 | Vout_ON | ilha3d_Jumper:Ilha3d_Jumper_2Pins_closed | JP8, JP9, JP10 |
| 2 | 0.1uF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C6, C9 |
| 2 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R2, R3 |
| 2 | Jumper_3_Bridged12 | Footprints:Jumper_3Pins_SPDT_ilha3d | JP1, JP2 |
| 2 | PWR_EN | Footprints:Jumper_3Pins_SPDT_ilha3d | JP6, JP7 |
| 2 | SS36 | Diode_SMD:D_SMA | D1, D2 |
| 1 | +12V | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J5 |
| 1 | +20V | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J6 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R7 |
| 1 | 150k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R5 |
| 1 | 470R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1 |
| 1 | 470k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R4 |
| 1 | 680k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R6 |
| 1 | 74HC166 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U3 |
| 1 | BMP-280 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | U4 |
| 1 | BP_Pwr_3v3 | Footprints:HW-613 | U5 |
| 1 | CD4040 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U2 |
| 1 | CN10 | Footprints:ilha3d_morphoPinSocket_2x19_P2.54mm_Vertical | J2 |
| 1 | CN7 | Footprints:ilha3d_morphoPinSocket_2x19_P2.54mm_Vertical | J1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J11 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J9 |
| 1 | E5V | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP2 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | GND1 |
| 1 | Jumper_2_Bridged | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP4 |
| 1 | KiCad-Logo_5mm_SilkScreen | Symbol:KiCad-Logo_5mm_SilkScreen | Logo1 |
| 1 | LOGO | Footprints:logo ilha3d - 500x500 KiCad cheio_16.9mm_positive | Logo3 |
| 1 | LoRa_Pwr_3v3 | Footprints:HW-613 | U6 |
| 1 | OSHW-Logo_5.7x6mm_SilkScreen | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | Logo4 |
| 1 | Power | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Horizontal | J7 |
| 1 | RST | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP3 |
| 1 | Rain Gauge | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J3 |
| 1 | STLINK | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | J8 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged2Bar12_Pad1.0x1.5mm_NumberLabels | JP5 |
| 1 | TIL113 | Package_DIP:DIP-6_W7.62mm_Socket_LongPads | U1 |
| 1 | UART2 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | J10 |
| 1 | US | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Horizontal | US1 |
| 1 | US_Pwr | Footprints:HW-613 | U7 |
| 1 | VDD | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | TP1 |
| 1 | WEEE-Logo_4.2x6mm_SilkScreen | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | Logo2 |

alexandreberg/SAPI_an_open_source_FEWS
Open-source flood early warning system: LoRa water-level and rain stations, gateway, web dashboard and LightGBM/MLR forecasts. Master's dissertation (IFSC, Brazil).


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It measures 84 × 84.5 mm and has 2 copper layers, 1.6 mm thick.
59 parts, built around the 74HC166D, CD4040BM, TIL113 and SS36. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the alexandreberg/SAPI_an_open_source_FEWS repository on GitHub, at the commit this page was made from: the board is hardware/morpho-shield-v1.2/RainGauge_ST_Morpho_Shield_V1.2.kicad_pcb and its schematic hardware/lora-arduino-shield-v1.0/SAPI_LoRa_Arduino_Shield_V1.0.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
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