2 layers100 × 82 mm
2 layers260 × 270 mm
Salt
martinanus/saltProyecto SALT
- Size
- 260 × 270 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 303
- Nets
- 355
- Pads
- 1,024
- Tracks, vias
- 2,128, 124
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 28 Jun 2024
- Updated
- 25 Nov 2024
Overview
Salt is an open-source printed circuit board by martinanus, from the martinanus/salt repository on GitHub. It is a 2-layer board of 260 × 270 mm with 303 parts on 355 nets, routed with 2,128 tracks and 124 vias.
It is built around the ESP32-DEVKITC-32E, DM3AT-SF-PEJM5 and ICL7660AIBAZA, with the SI2343DS-T1-E3-MS, JW2SN-DC5V and MF-USMF020-2 among its other parts. Its parts include 99 resistors, 34 capacitors, 28 diodes, 21 ICs and 21 connectors. It belongs with the ESP32 boards of this library.
Main components
6
ESP32-DEVKITC-32E
-- ModulesEspressif SystemsModules
DM3AT-SF-PEJM5
SMD-25℃~+85℃ 1.68mm Connector and Ejector MicroSD Card (TF Card) No Push-Push SMD SD Card / Memory Card Connector ROHSHirose ElectricSD Card / Memory Card Connector
ICL7660AIBAZA
SOIC-8SOIC-8 Charge Pumps ROHSRenesas ElectronicsCharge Pumps
SI2343DS-T1-E3-MS
SOT-23-55℃~+150℃ 1 P-Channel 1.56W 1.6V 30V 40pF 45mΩ@10V 4A 5.1nC@4.5V 55pF 560pF P-Channel SOT-23 MOSFETs ROHSMSKSEMIMOSFETs
JW2SN-DC5V
DIP,28.6x12.8mm-40℃~+60℃ 100mΩ 12.8mm 15ms 2 Form C: 2C (DPDT-CO) 28.6mm 30V@DC、250V@AC 47Ω 530mW 5A 5A@30VDC、5A@250VAC 5V 5ms AgNi DIP,28.6x12.8mm Power Relays ROHSPanasonicPower Relays
MF-USMF020-2
1210-40℃~+85℃ 2.5mm 200mA 3.2mm 30V 400mA 400mΩ 5Ω 600mW 1210 Resettable Fuses ROHSBournsResettable Fuses
README
README.mdProyecto SALT
Resumen
Este trabajo presenta el diseño e implementación de un prototipo para un sistema de aislado limitado total para formaciones ferroviarias (SAL/T) basado en un pliego de especificaciones de la empresa Trenes Argentinos Operaciones y en una primera versión del prototipo realizado anteriormente en el contexto del Grupo de Investigación en Calidad y Seguridad de las Aplicaciones Ferroviarias (GICSAFe). En esta versión, se agregan nuevas funcionalidades, se actualiza el hardware utilizado y se mejora la portabilidad de su firmware.
Este sistema permite aumentar la seguridad de los trenes ante una falla en alguno de sus sistemas instrumentados de seguridad interfiriendo las señales de corte de tracción y freno de emergencia de la formación y aislando el subsistema en fallo. El SAL/T considera múltiples fuentes de medición de la velocidad de la formación y la comunicación con una central operativa para determinar cómo debe intervenir estas señales críticas para llevar a la formación a un estado seguro de manera controlada.
Diagrama en bloques del SAL/T
Diseño del panel frontal del sistema
Parts
303| Qty | Value | Footprint | References |
|---|---|---|---|
| 60 | TestPoint | salt:testpoint | TP1, TP2, TP10, TP11, TP12, TP13, TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23 +44 |
| 28 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C12, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27, C28 +12 |
| 22 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25, R30, R31, R32, R34, R35, R36, R37, R38, R39, R40, R41, R43, R44, R45, R46 +6 |
| 22 | LED | LED_SMD:LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +6 |
| 21 | JW2SN-DC5V | salt:JW2SNDC5V | K1, K2, K3, K4, K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K20, K21 +5 |
| 20 | 1M | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R59, R60, R64, R65, R68, R69, R70, R71, R72, R73, R74, R75, R84, R85, R86, R87 +4 |
| 20 | 30k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R61, R62, R66, R67, R76, R77, R78, R79, R80, R81, R82, R83, R92, R93, R94, R95 +4 |
| 11 | 1935022 | salt:1935022 | J8, J9, J12, J13, J14, J15, J16, J17, J18, J19, J20 |
| 10 | INA823DGKR | salt:Texas_Instruments-DGK0008A-0-0-MFG | IC6, IC8, IC9, IC10, IC11, IC12, IC13, IC14, IC15, IC16 |
| 9 | 0 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R9, R10, R24, R33, R42, R48, R51, R58, R63 |
| 8 | 4k7 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 |
| 8 | Jumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Open_TrianglePad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 |
| 7 | 1934887 | salt:1934887 | J1, J2, J3, J4, J5, J6, J7 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 6 | SZP6SMB12 | salt:DIOM5436X247N | D1, D2, D3, D4, D5, D6 |
| 4 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R11, R12, R13, R14 |
| 4 | 390 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R17, R18, R20 |
| 4 | 40K2 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R26, R27, R28, R29 |
| 4 | MF-USMF020-2 | salt:FUSC3226X110N | F1, F2, F3, F4 |
| 4 | ULN2003D1013TR | salt:SOIC127P600X175-16N | IC2, IC3, IC4, IC5 |
| 3 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C10 |
| 3 | 10uF | salt:EEE1AA220WR | C5, C13, C14 |
| 3 | 56k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R49, R50, R54 |
| 2 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21, R22 |
| 2 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R16, R19 |
| 2 | SN65HVD1176DR | salt:SOIC127P600X175-8N | U2, U3 |
| 2 | USB_A | salt:875832010BLF | J10, J11 |
| 1 | 150k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23 |
| 1 | DM3AT-SF-PEJM5 | salt:DM3ATSFPEJM5 | J21 |
| 1 | ESP32-DEVKITC-32 | salt:MODULE_ESP32-DEVKITC-32 | U5 |
| 1 | ICL7660AIBAZA | salt:SOIC127P600X175-8N | IC7 |
| 1 | LOGO | LOGO | G*** |
| 1 | Módulo GPS GY-GPS6MV2 | salt:GY-NEO6MV2 | U4 |
| 1 | NUCLEO-F429ZI | salt:MODULE_NUCLEO-F429ZI | U1 |
| 1 | SI2343DS-T1-E3 | salt:SOT95P237X112-3N | IC1 |
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Questions
How big is the Salt PCB?
It measures 260 × 270 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Salt use?
303 parts, built around the ESP32-DEVKITC-32E, DM3AT-SF-PEJM5, ICL7660AIBAZA and SI2343DS-T1-E3-MS. 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.
Where can I download the Salt KiCad files?
From the martinanus/salt repository on GitHub, at the commit this page was made from: the board is hardware/salt/salt.kicad_pcb and its schematic hardware/salt/RS485.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Salt design in my own project?
Its repository states no licence, so its author keeps all rights: ask martinanus before reusing the design.