hbox-docs/docs/hardware/v56-pinout.md

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---
title: "HBOX EinarBoard V5.6 — Pinout de arneses y conectores"
project: Project Drogheda
date: 2026-09-29
version: "1.1"
tags: [project-drogheda, hardware, harness, pinout, einarboard, v5.6]
---
# HBOX EinarBoard V5.6 — Pinout de arneses y conectores
!!! info "Designadores T43 (22-oct)"
Este pinout ya usa los designadores de T43, los mismos que trae la serigrafía de la V5.6 desde el 22-oct. Todos los conectores van con J: el GX16 es **J15**, la entrada de 5 V **J16**, el paquete **J5**, el corte **J2**, el USB-C de DFU **J7**, el del módem **J13**, el RJ45 **J6** y el zócalo XBee **J8**/**J9**. Las ligas a cada sección siguen funcionando. Lo que ya no está en la tarjeta (P12) lo dice. Los documentos fechados antes del 22-oct usan la numeración vieja: [tabla viejo → nuevo](designadores-t43-22oct.md#8-tablas-viejo-nuevo).
??? info "Designadores que menciona este pinout: ahora ← antes (146)"
| Ahora | Antes | Pieza |
|---|---|---|
| **C1** | C103 | 100uF/6.3V |
| **C5** | C94 | 10uF |
| **C6** | C125 | 10nF |
| **C7** | C23 | 22uF/25V |
| **C8** | C102 | 22uF |
| **C9** | C106 | 100nF |
| **C12** | C30 | 10uF |
| **C14** | C78 | 220uF/16V polymer |
| **C15** | C97 | 6.8nF |
| **C16** | C98 | 100nF |
| **C17** | C92 | 100nF |
| **C18** | C93 | 100nF |
| **C19** | C110 | 4.7uF |
| **C20** | C105 | 100nF |
| **C23** | C90 | 4.7uF |
| **C24** | C91 | 10nF |
| **C26** | C104 | 100nF |
| **C30** | C43 | 220uF/16V polymer |
| **C31** | C118 | 22uF/25V |
| **C32** | C107 | 100nF |
| **C34** | C81 | 100nF |
| **C37** | Cu3 | 100nF |
| **C38** | C108 | 100nF |
| **C43** | C41 | 22uF |
| **C45** | C84 | 100nF |
| **C46** | C124 | 100nF |
| **C47** | C122 | 22uF |
| **C48** | C101 | 22uF |
| **C51** | C89 | 100nF |
| **C56** | C80 | 100nF |
| **C57** | Cu4 | 100nF |
| **C58** | C121 | 10uF/25V |
| **C60** | C35 | 22uF |
| **C64** | C119 | 22uF |
| **C65** | C120 | 22uF |
| **C66** | C34 | 10uF |
| **C68** | C3 | 220uF/16V polymer |
| **C69** | C40 | 22uF |
| **C70** | C31 | 2.2uF |
| **C71** | C32 | 47uF |
| **C72** | C33 | 47uF |
| **D1** | D1 | LED |
| **D2** | D5 | BAT54 |
| **D3** | D2 | SS34 |
| **D4** | D6 | 1N4148W |
| **D5** | D15 | PESD5V0S1BA |
| **D6** | D16 | PESD5V0S1BA |
| **D7** | D14 | PESD5V0S1BA |
| **D8** | D13 | SS34 |
| **D9** | D12 | SS34 |
| **D14** | DB4 | LED |
| **D15** | DB3 | LED |
| **D16** | DB2 | LED |
| **D17** | DB1 | LED |
| **D18** | D10 | SMBJ33CA |
| **D20** | D19 | USBLC6-2SC6 |
| **F1** | F1 | PPTC 4A/8A 12V 1812 |
| **J1** | P10 | RESET-EXT |
| **J2** | P11 | CUTOFF-SW |
| **J3** | P6 | FAN 2-pin |
| **J4** | P8 | PANEL_LED |
| **J5** | P4 | BATT-1S4P+NTC |
| **J6** | J10 | HR911105A |
| **J7** | J11 | USB-C DFU |
| **J8** | J7 | XBEE-ROW-1 (VCC/DOUT/DIN) |
| **J9** | J8 | XBEE-ROW-2 |
| **J10** | P14 | RGB_LED_EXT |
| **J11** | P15 | RS485_OUT |
| **J12** | P16 | RS232_OUT |
| **J13** | J9 | USB-C |
| **J14** | H4 | TTL_UARTB |
| **J15** | P1 | GX16-5 |
| **J16** | P2 | 5V-IN-SD15B05 |
| **JP1** | JP1 | 0R |
| **JP2** | JP6 | JP_CUT |
| **JP3** | JP2 | F2:LFP (2-3) |
| **JP4** | JP4 | F0:1 |
| **JP5** | JP3 | F1:0 |
| **JP6** | JP5 | RS485_TERM |
| **K1** | K1 | G5V-1 DC5 |
| **L1** | L8 | 10uH/2A |
| **L2** | L7 | 4.7uH/4A |
| **L3** | L6 | 2.2uH/8A |
| **L4** | L2 | 10uH |
| **MOD1** | MOD1 | simpleRTK2B-Pro on UNO female headers |
| **Q1** | Q2 | AO3400A |
| **Q2** | Q4 | AO3400A |
| **Q4** | Q1 | AO3401A |
| **Q6** | Q10 | IRFR5305 |
| **Q7** | Q7 | AO4406A |
| **R1** | R3 | 120R |
| **R2** | R84 | 10k |
| **R3** | R93 | 49.9R/1% |
| **R4** | R92 | 49.9R/1% |
| **R5** | R112 | 4.7k |
| **R8** | R2 | 10k |
| **R9** | R95 | 49.9R/1% |
| **R10** | R94 | 49.9R/1% |
| **R11** | R114 | 120k |
| **R15** | Rig1 | 22k |
| **R17** | R113 | 100k |
| **R18** | R55 | 5.6k/1% |
| **R19** | R7 | 10k |
| **R21** | R97 | 330R |
| **R22** | R96 | 330R |
| **R27** | Rdfu1 | 22k |
| **R28** | R5 | 10k |
| **R37** | R109 | 10k |
| **R38** | R101 | 5.1k |
| **R39** | R100 | 5.1k |
| **R41** | R111 | 1k |
| **R43** | R107 | 1k |
| **R46** | R87 | 100k |
| **R48** | R108 | 10k |
| **R49** | Rmled1 | 1k |
| **R50** | R60 | 100k/1% |
| **R52** | R91 | 120R |
| **R53** | R90 | 120R |
| **R54** | R89 | 120R |
| **R59** | R51 | 270k/1% |
| **R65** | R53 | 499k/1% |
| **R68** | RS1 | 10mR/1%/1W |
| **R71** | R82 | 120R |
| **R72** | Rcc1 | 5.1k |
| **R73** | Rcc2 | 5.1k |
| **R76** | R20 | 100k |
| **SW1** | SW2 | BOOT0 |
| **SW2** | SW1 | RESET |
| **SW3** | SW4G1 | RESET |
| **TP1** | TP6 | GND |
| **TP2** | TP7 | 3V3 |
| **TP3** | TP3 | SWDIO |
| **TP4** | TP5 | NRST |
| **TP5** | TP4 | SWCLK |
| **TP6** | TP2 | PFO |
| **TP7** | TP1 | CLPROG |
| **U2** | U11 | W5500 |
| **U3** | U16 | STM32F411RET6 |
| **U5** | U10 | SC16IS752IPW |
| **U7** | U14 | SP3485EN |
| **U8** | U18 | TMP102 |
| **U9** | U12 | MP1584EN |
| **U10** | U15 | TRS3232E |
| **U12** | U4 | TMP102 |
| **U13** | U7 | AP64350SP-13 |
| **U14** | U6 | LTC4040EUFD |
!!! warning "Generado de la netlist del 28-sep-2026"
No incluye lo que cambió después: el acelerómetro **U1** (8-oct) y la salida de P12 con su divisor (9-oct). Los valores eléctricos siguen vigentes. La referencia al día de la V5.6 es su documento de diseño (22-oct).
!!! note "EinarBoard V5.6 (`hbox-watchdog-v5`), lote en pedido"
Esta tarjeta es la evolución de la V5.5 fabricada (STM32F411 a bordo + zócalos simpleRTK2B y 4G NTRIP Master). **No es la v6** (GNSS y 4G soldados a bordo, `hbox-watchdog-v6`, en diseño): la v6 tiene su propia sección en el sitio. Cuando este documento dice «copiado de v6» se refiere solo al origen de un valor de componente.
Generado automáticamente desde la netlist del esquemático (independiente de la colocación). `GND` = plano de tierra de la tarjeta; su lista completa de pads se omite. Las nets de potencia van marcadas ⚡ para elegir calibre de cable. Se omiten las banderas `PWR_FLAG` (PFx).
| Netlist | Valor |
|---|---|
| Archivo | `03-Architecture-Hardware/kicad/_to_delete/v56-work-20260928/p5ntc-after.xml` (exportada de `kicad/hbox-watchdog-v5.kicad_sch` con la ECO V5.6 aplicada, Eeschema 10.0.4, 2026-09-28 17:43) |
| SHA-256 | `45d3f034a327f8176bd76bf8d95698e21c3e3f914726b2648fcd80cc538e42a7` |
| Aplica a | **V5.6** (lote por pedir). Para V5.5 as-fabbed (lote 22-ago, 15 pzas) ver la sección «Diferencias V5.5 → V5.6» al final. |
## Resumen de conectores
| Conn | Función | Pines | Tipo (huella) |
|---|---|---|---|
| **J15** | GX16-5 | 5 | `TerminalBlock_Phoenix_MKDS-1,5-5_1x05_P5.00mm_Horizontal` |
| **J16** | 5V-IN-SD15B05 | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **J5** | BATT-1S4P+NTC | 3 | `JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical` |
| **J3** | FAN 2-pin | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **J4** | PANEL_LED | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **J1** | RESET-EXT | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **J2** | CUTOFF-SW | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **P12** (se quitó el 9-oct) | NTC-HOTSPOT | 2 | `JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical` |
| **J10** | RGB_LED_EXT | 4 | `JST_XH_B4B-XH-A_1x04_P2.50mm_Vertical` |
| **J11** | RS485_OUT | 3 | `PhoenixContact_MC_1,5_3-G-3.5_1x03_P3.50mm_Vertical` |
| **J12** | RS232_OUT | 3 | `PhoenixContact_MC_1,5_3-G-3.5_1x03_P3.50mm_Vertical` |
| **J14** | TTL_UARTB | 4 | `PinHeader_1x04_P2.54mm_Vertical` |
| **J7** | USB-C DFU | 15 | `USB_C_Receptacle_GCT_USB4085` |
| **J13** | USB-C | 15 | `USB_C_Receptacle_GCT_USB4085` |
| **J6** | HR911105A | 13 | `RJ45_Hanrun_HR911105A_Horizontal` |
| **J8** | XBEE-ROW-1 (VCC/DOUT/DIN) | 10 | `PinSocket_1x10_P2.00mm_Vertical` |
| **J9** | XBEE-ROW-2 | 10 | `PinSocket_1x10_P2.00mm_Vertical` |
| **MOD1** | simpleRTK2B-Pro on UNO female headers | 32 | `Arduino_UNO_R3` |
## Conectores de arnés { #conectores-de-arnes-p }
### J15 — GX16-5 { #p1-gx16-5 }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `24V_IN` ⚡potencia | D18.1, Q6.2 |
| 2 | `GND` | plano de tierra |
| 3 | `IGN_IN` | R15.1 |
| 4 | `GND` | plano de tierra |
| 5 | — | *(sin net)* |
### J16 — 5V-IN-SD15B05 { #p2-5v-in-sd15b05 }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `VEH5V` ⚡potencia | C12.1, C14.1, C70.1, JP1.2, R18.1, R19.1, R59.1, R68.1, U14.6, U14.16 |
| 2 | `GND` | plano de tierra |
### J5 — BATT-1S4P+NTC { #p4-batt-1s4pntc }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `BAT_PLUS` ⚡potencia | C60.1, L3.2, R28.1, U14.23 |
| 2 | `GND` | plano de tierra |
| 3 | `NTC` | R17.1, R18.2, U14.17 |
### J3 — FAN 2-pin { #p6-fan-2-pin }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `5V_FAN` ⚡potencia | C7.1, D3.1, JP1.1, L4.2, R76.1 |
| 2 | `FAN_RET` | D3.2, Q1.3 |
### J4 — PANEL_LED { #p8-panel_led }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `LED_A` | D1.2, R1.2 |
| 2 | `LED_K` | D1.1, Q2.3 |
### J1 — RESET-EXT { #p10-reset-ext }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `NRST` | C26.1, SW2.1, TP4.1, U3.7 |
| 2 | `GND` | plano de tierra |
### J2 — CUTOFF-SW { #p11-cutoff-sw }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `MAIN5V` ⚡potencia | C66.1, C71.1, C72.1, JP2.1, JP3.1, JP4.1, JP5.3, Q7.5, Q7.6, Q7.7, Q7.8, R65.1, U14.1, U14.24 |
| 2 | `SYS5V` ⚡potencia | C48.1, C58.1, C64.1, C65.1, D4.1, D9.2, F1.1, JP2.2, K1.2, R8.2, U9.2, U9.7, U13.2 |
### P12 — NTC-HOTSPOT { #p12-ntc-hotspot }
**Se quitó el 9-oct:** P12 y su divisor ya no están en la V5.6; el pin 27 del MCU (PB1) quedó libre.
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `NTC_TEMP` | U3.27 (el divisor, «R42» y «C24» en la numeración vieja, se quitó con P12) |
| 2 | `GND` | plano de tierra |
### J10 — RGB_LED_EXT { #p14-rgb_led_ext }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `3V3` ⚡potencia | C9.1, C19.1, C20.1, C31.1, C32.1, C34.1, C37.1, C38.1, C45.1, C46.1, C51.1, C56.1, C57.1, D2.1, D14.2, D15.2, D16.2, D17.2, … (+31) |
| 2 | `RGBR_K` | R54.1 |
| 3 | `RGBG_K` | R53.1 |
| 4 | `RGBB_K` | R52.1 |
### J11 — RS485_OUT { #p15-rs485_out }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `RS485_A` | R71.1, U7.6 |
| 2 | `RS485_B` | JP6.2, U7.7 |
| 3 | `GND` | plano de tierra |
### J12 — RS232_OUT { #p16-rs232_out }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `RS232_TX` | U10.14 |
| 2 | `RS232_RX` | U10.13 |
| 3 | `GND` | plano de tierra |
### J14 — TTL_UARTB { #h4-ttl_uartb }
| Pin | Net | Conecta con |
|---|---|---|
| 1 | `3V3` ⚡potencia | C9.1, C19.1, C20.1, C31.1, C32.1, C34.1, C37.1, C38.1, C45.1, C46.1, C51.1, C56.1, C57.1, D2.1, D14.2, D15.2, D16.2, D17.2, … (+31) |
| 2 | `SER_TXB` | U5.23, U10.11 |
| 3 | `SER_RXB` | U5.24, U10.12 |
| 4 | `GND` | plano de tierra |
## Puertos de servicio (USB-C, Ethernet)
### J7 — USB-C DFU { #j11-usb-c-dfu }
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| A1 | GND_A1 | `GND` | plano de tierra |
| A4 | VBUS_A4 | `DFU_VBUS` ⚡potencia | D6.1, D8.2 |
| A5 | CC1_A5 | `DFU_CC1` | R39.1 |
| A6 | D+_A6 | `DFU_DP` | D7.1, U3.45 |
| A7 | D-_A7 | `DFU_DM` | D5.1, U3.44 |
| A9 | VBUS_A9 | `DFU_VBUS` ⚡potencia | D6.1, D8.2 |
| A12 | GND_A12 | `GND` | plano de tierra |
| B1 | GND_B1 | `GND` | plano de tierra |
| B4 | VBUS_B4 | `DFU_VBUS` ⚡potencia | D6.1, D8.2 |
| B5 | CC2_B5 | `DFU_CC2` | R38.1 |
| B6 | D+_B6 | `DFU_DP` | D7.1, U3.45 |
| B7 | D-_B7 | `DFU_DM` | D5.1, U3.44 |
| B9 | VBUS_B9 | `DFU_VBUS` ⚡potencia | D6.1, D8.2 |
| B12 | GND_B12 | `GND` | plano de tierra |
| SH | SHIELD_SH | `GND` | plano de tierra |
### J13 — USB-C { #j9-usb-c }
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| A1 | GND_A1 | `GND` | plano de tierra |
| A4 | VBUS_A4 | `USB_VBUS` ⚡potencia | D20.5, J8.6 |
| A5 | CC1_A5 | `USB_CC1` | R72.1 |
| A6 | D+_A6 | `USB_DP` | D20.3, D20.4, J8.7 |
| A7 | D-_A7 | `USB_DM` | D20.1, D20.6, J8.8 |
| A9 | VBUS_A9 | `USB_VBUS` ⚡potencia | D20.5, J8.6 |
| A12 | GND_A12 | `GND` | plano de tierra |
| B1 | GND_B1 | `GND` | plano de tierra |
| B4 | VBUS_B4 | `USB_VBUS` ⚡potencia | D20.5, J8.6 |
| B5 | CC2_B5 | `USB_CC2` | R73.1 |
| B6 | D+_B6 | `USB_DP` | D20.3, D20.4, J8.7 |
| B7 | D-_B7 | `USB_DM` | D20.1, D20.6, J8.8 |
| B9 | VBUS_B9 | `USB_VBUS` ⚡potencia | D20.5, J8.6 |
| B12 | GND_B12 | `GND` | plano de tierra |
| SH | SHIELD_SH | `GND` | plano de tierra |
### J6 — HR911105A { #j10-hr911105a }
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| 1 | TD+_1 | `ETH_TXP` | R4.1, U2.2 |
| 2 | TD-_2 | `ETH_TXN` | R3.1, U2.1 |
| 3 | RD+_3 | `ETH_RXP` | R10.1, U2.6 |
| 4 | TCT_4 | `3V3_ETH` ⚡potencia | C1.1, C5.1, C8.1, C16.1, C17.1, C18.1, L1.2, R2.1, R3.2, R4.2, R21.2, R22.2, R46.1, U2.11, U2.15, U2.17, U2.21, U2.28, … (+2) |
| 5 | RCT_5 | `ETH_RCT` | C15.1, R9.2, R10.2 |
| 6 | RD-_6 | `ETH_RXN` | R9.1, U2.5 |
| 7 | NC_7 | — | *(sin net)* |
| 8 | 8 | — | *(sin net)* |
| 9 | 9 | `ETH_LNK_A` | R22.1 |
| 10 | 10 | `ETH_LINKLED` | U2.25 |
| 11 | 11 | `ETH_ACT_A` | R21.1 |
| 12 | 12 | `ETH_ACTLED` | U2.27 |
| SH | SH | `GND` | plano de tierra |
## Zócalos de módulos
### J8 — XBEE-ROW-1 (VCC/DOUT/DIN) { #j7-xbee-row-1-vccdoutdin }
Fila 1 del zócalo XBee (pines 1–10 del módulo, en orden). Módem ArduSimple 4G NTRIP Master.
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| 1 | Pin_1_1 | `3V3_MODEM` ⚡potencia | C30.1, C43.1, C47.1, J9.7, L2.2, R50.1 |
| 2 | Pin_2_2 | `DOUT_4G` | MOD1.17, R41.2 |
| 3 | Pin_3_3 | `DIN_4G` | K1.5, K1.6 |
| 4 | Pin_4_4 | `GND` | plano de tierra |
| 5 | Pin_5_5 | `MODEM_RST` | R43.2, SW3.1 |
| 6 | Pin_6_6 | `USB_VBUS` ⚡potencia | D20.5, J13.A4, J13.A9, J13.B4, J13.B9 |
| 7 | Pin_7_7 | `USB_DP` | D20.3, D20.4, J13.A6, J13.B6 |
| 8 | Pin_8_8 | `USB_DM` | D20.1, D20.6, J13.A7, J13.B7 |
| 9 | Pin_9_9 | — | *(sin net)* |
| 10 | Pin_10_10 | `GND` | plano de tierra |
### J9 — XBEE-ROW-2 { #j8-xbee-row-2 }
Fila 2 del zócalo XBee: **pad k = pin XBee (21 − k)** (espejo; regla verificada en el Informe técnico V3+V4 contra el footprint-R00 de ArduSimple: J9.8 = pin 13 LED, J9.6 = pin 15 GND, J9.10 = pin 11 GND). La net `XBEE_ONSLP` en J9.3 (R37 DNP) corresponde por esa regla al pin XBee 18; el ECO la etiqueta «pin 13 ON/SLEEP». <!-- VERIFICAR contra el datasheet del 4G NTRIP Master antes de poblar R37 -->
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| 1 | Pin_1_1 | `GND` | plano de tierra |
| 2 | Pin_2_2 | — | *(sin net)* |
| 3 | Pin_3_3 | `XBEE_ONSLP` | R37.2 |
| 4 | Pin_4_4 | — | *(sin net)* |
| 5 | Pin_5_5 | — | *(sin net)* |
| 6 | Pin_6_6 | `GND` | plano de tierra |
| 7 | Pin_7_7 | `3V3_MODEM` ⚡potencia | C30.1, C43.1, C47.1, J8.1, L2.2, R50.1 |
| 8 | Pin_8_8 | `MODEM_LED` | R48.2, R49.1 |
| 9 | Pin_9_9 | — | *(sin net)* |
| 10 | Pin_10_10 | `GND` | plano de tierra |
### MOD1 — simpleRTK2B-Pro on UNO female headers
Zócalo UNO del simpleRTK2B Pro (ArduSimple). Solo se usan 5V, IOREF, GND, D0/D1 (UART1) y D2/D8 (UART2); el resto queda sin conectar por indicación de ArduSimple.
| Pin | Señal | Net | Conecta con |
|---|---|---|---|
| 1 | NC_1 | — | *(sin net)* |
| 2 | IOREF_2 | `3V3` ⚡potencia | C9.1, C19.1, C20.1, C31.1, C32.1, C34.1, C37.1, C38.1, C45.1, C46.1, C51.1, C56.1, C57.1, D2.1, D14.2, D15.2, D16.2, D17.2, … (+31) |
| 3 | RESET_3 | — | *(sin net)* |
| 4 | 3V3_OUT_4 | — | *(sin net)* |
| 5 | 5V_5 | `SW_5V` ⚡potencia | C68.1, C69.1, Q4.3 |
| 6 | GND_6 | `GND` | plano de tierra |
| 7 | GND_7 | `GND` | plano de tierra |
| 8 | VIN_8 | — | *(sin net)* |
| 9 | A0_9 | — | *(sin net)* |
| 10 | A1_10 | — | *(sin net)* |
| 11 | A2_11 | — | *(sin net)* |
| 12 | A3_12 | — | *(sin net)* |
| 13 | A4_13 | — | *(sin net)* |
| 14 | A5_14 | — | *(sin net)* |
| 15 | TX1_D0_15 | `GNSS_RX` | U3.17 |
| 16 | RX1_D1_16 | `GNSS_TX` | U3.16 |
| 17 | RX2_D2_17 | `DOUT_4G` | J8.2, R41.2 |
| 18 | D3_18 | — | *(sin net)* |
| 19 | D4_19 | — | *(sin net)* |
| 20 | D5_20 | — | *(sin net)* |
| 21 | D6_21 | — | *(sin net)* |
| 22 | D7_22 | — | *(sin net)* |
| 23 | TX2_D8_23 | `USART1_RX` | K1.1, R27.1, U3.43 |
| 24 | D9_24 | — | *(sin net)* |
| 25 | D10_25 | — | *(sin net)* |
| 26 | FENCE_D11_26 | — | *(sin net)* |
| 27 | EXTINT_D12_27 | — | *(sin net)* |
| 28 | TPS_D13_28 | — | *(sin net)* |
| 29 | GND_29 | `GND` | plano de tierra |
| 30 | AREF_30 | — | *(sin net)* |
| 31 | SDA_31 | — | *(sin net)* |
| 32 | SCL_32 | — | *(sin net)* |
## Puentes de soldadura
| Ref | Valor (estado por defecto) | Pad 1 | Pad 2 | Pad 3 |
|---|---|---|---|---|
| **JP1** | 0R | `5V_FAN` | `VEH5V` | — |
| **JP2** | JP_CUT | `MAIN5V` | `SYS5V` | — |
| **JP3** | F2:LFP (2-3) | `MAIN5V` | `F2_SEL` | `GND` |
| **JP4** | F0:1 | `MAIN5V` | `F0_SEL` | `GND` |
| **JP5** | F1:0 | `GND` | `F1_SEL` | `MAIN5V` |
| **JP6** | RS485_TERM | `RS485_T` | `RS485_B` | — |
## Botones
| Ref | Serigrafía | Pin 1 | Pin 2 |
|---|---|---|---|
| **SW1** | BOOT0 | `3V3` (C56.1, C34.1, C45.1, C51.1, C20.1, C9.1, C32.1, C38.1, C19.1, C31.1, C46.1, C37.1, … (+37)) | `BOOT0` |
| **SW2** | RESET | `NRST` (C26.1, J1.1, TP4.1, U3.7) | `GND` |
| **SW3** | RESET | `MODEM_RST` (J8.5, R43.2) | `GND` |
## Puntos de prueba
| Ref | Nombre | Net | Conecta con |
|---|---|---|---|
| **TP1** | GND | `GND` | plano de tierra |
| **TP2** | 3V3 | `3V3` | C9.1, C19.1, C20.1, C31.1, C32.1, C34.1, C37.1, C38.1, C45.1, C46.1, C51.1, C56.1, … (+37) |
| **TP3** | SWDIO | `SWDIO` | U3.46 |
| **TP4** | NRST | `NRST` | C26.1, J1.1, SW2.1, U3.7 |
| **TP5** | SWCLK | `SWCLK` | U3.49 |
| **TP6** | PFO | `PFO_TP` | U14.20 |
| **TP7** | CLPROG | `CLPROG_TP` | U14.3 |
## Diferencias V5.5 → V5.6 en conectores (lo que cambia para el arnés)
La columna «Conector» va con los designadores de la V5.6 (T43); en la V5.5 son los de antes ([tabla](designadores-t43-22oct.md#8-tablas-viejo-nuevo)).
| Conector | V5.5 (lote 22-ago) | V5.6 | Fuente |
|---|---|---|---|
| **P5** TEMP_PROBE (3V3/GND/SDA/SCL) | Presente | Eliminado — ya no hay sonda externa de T/RH; la temperatura del cargador la mide U12 y la del módem U8 en la tarjeta | Informe de cambios §10 / netlist `p5ntc-after.xml` (sin P5) |
| **J5.3** NTC | Solo al LTC4040 (U6.17) con R55 10 k (Li-ion) | Además al MCU **PC5** por R17 100 k / R11 120 k / C6 10 nF (`NTC_CELL`); R18 **5.6 k** para química **LFP-HT** (NTC B3380) | netlist; Informe §9 |
| **JP3** | `F2:Li-ion` puente 1-2 | **`F2:LFP` puente 2-3** (flotación LiFePO4) | Informe §9 |
| **JP2** | No existía | Nuevo, en paralelo con J2 (`MAIN5V`↔`SYS5V`), abierto — puentear solo si la unidad no lleva interruptor de corte | Informe §2 |
| **J8.2** DOUT_4G | Solo a MOD1.17 | Además al MCU **PC7** (USART6_RX) por R41 1 k — escucha RTCM | Informe §3 |
| **J8.5** MODEM_RST | Solo SW4G1 | Además al MCU **PC1** por R43 1 k | Informe §3 |
| **J9.8** MODEM_LED | Solo Rmled1/D4G1 | Además al MCU **PC2** por R48 10 k | Informe §3 |
| **J9.3** | Sin conexión | `XBEE_ONSLP` → PC4 por R37 10 k DNP | Informe §2–3 |
| **J13** USB-C módem | Sin ESD | **D20 USBLC6-2SC6** en D+/D−/VBUS | Informe §2 |
| **J6** RJ45 | Sin cambio (sin PoE) | Sin cambio; U2 con R5 4.7 k pull-down en `ETH_RST`, C23 4.7 µF, C24 10 nF | Informe §10 |
| **J2** CUTOFF-SW | `MAIN5V`/`SYS5V` | Sin cambio (JP2 lo puentea si se desea) | netlist |
| **J15, J16, J3, J4, J1, P12, J10, J11, J12, J7, MOD1** | — | **Sin cambio** eléctrico | diff de netlist v55-baseline → V5.6 (Informe §4) |
!!! note "P13 (MODO-B-UPLINK) y P3 (RTK2B-UART1)"
Existían en la V3 (`harness-connector-pinout.md`) y **no existen en V4/V5.5/V5.6** (eliminados en V4 junto con H3: el Modo B es permanente por K1). No buscarlos en la tarjeta.
## Historial de revisiones
| Versión | Fecha | Cambios |
|---|---|---|
| 1.0 | 2026-09-29 | Primera versión para V5.6 |
| 1.1 | 2026-10-22 | Designadores T43 (serigrafía de la V5.6 desde el 22-oct): todos los conectores con J; listas «Conecta con» y tablas de puentes, botones y puntos de prueba reordenadas por el designador nuevo; P12 marcado como quitado (9-oct). |