WomoNET.core Hardware

The WomoNET.core offers the perfect solution to make your motorhome smart.

Onboard Functionality

  • 512MB DDR3 RAM (NT5CC256M16ER-EK)
  • 8GB eMMC Storage (Samsung KLM8G1GETF-B041)
  • LSM6DS3 3D accelerometer and 3D gyroscope
  • 24AA02UID Type label
  • SD Card for expanding storage space
  • 3x USB-C 2.0 Ports (via USB2514B hub, e.g. for VE.Bus MK3 adapter)
  • 8x 1-Wire Inputs (via i2c: DS2482S-800)
  • 8-Channel ADC, divided into 4x tank monitoring, 4x analog inputs (via i2c: MAX11615)
  • 16-Channel Digital Inputs, divided into 2x tank monitoring (4-finger probes) and 8 universal digital inputs (via i2c: PCA9555APW)
  • Expansion Port with SPI, I2C and 4 user-definable port pins
  • Mini PCI-E Slot for LTE/5G modem

Interfaces

Port Overview

Top: USB (programming only), OneWire (J23), GPIO (J21), analog inputs (J20)
Left Side: Analog (J16-J19) and digital tank sensors (J15), USB-C, SIM card
Right Side: microSD card, Ethernet (J4), T1S (J2, J3), power supply (J1)
Bottom: LIN/TIN ports (J10, J11), VE.Direct (J7, J8, J9), RS485 (J6), CAN-Bus (J5)
SocketInterfaceDescriptionConnectorCompatible Devices
J1Power10-36V DC input, 2-3W max power requirementMolex Mini-Fit Jr. 39-01-4020-
J2, J3BASE10-T1S (SPE)Single Pair Ethernet (SPE) for WomoNET networkTyco Electronic Micro-Fit 43025-0400WomoNET.power
J4LAN 100MBit/sConnection to internet and control via appRJ45-
J5CAN FD ISO 11898Connection to CAN bus devices, such as heaters or base vehicleTyco Electronic Micro-Fit 43025-0600Timberline
J6RS485Up to 10Mbps RS-485/RS-422 portTyco Electronic Micro-Fit 43645-0400Nordelectronika
J7, J8, J9Serial Port (UART)3x Isolated, up to 10Mbps serial port, VE.Direct compatibleJST PH-2.0, compatible with official VE.Direct cablesVictron Energy Devices:
- Smart/BlueSolar
- SmartShunt
- Phoenix Inverter
- BMV7xx

Autoterm 2/4D Heater
Webasto (via adapter)
China Diesel Heater
J10, J11, J12, J13LIN/CI/TINInterface for LIN bus compatible devicesTyco Electronic Micro-Fit 43025-0200Truma Combi Series
Schaudt EBL
Schaudt EBL e-SmartWave
Thitronik
Wentronic
Dometic FreshJet Series
Dometic Refrigerators
J14, J15Digital InputDigital inputs for 4/5-way tank sensors or other peripheralsTyco Electronic Micro-Fit 43645-0500Tank sensors from Schaudt and CBE
J16, J17, J18, J19Analog InputAnalog inputs for tank sensors or other peripherals (0-3V). Integrated 12V power supply pins.Tyco Electronic Micro-Fit 43645-0300Votronic 12-24 K/15-50 K

Port Mapping

The ports are integrated into the Linux system as follows:

ConnectorPortMount
J7 (VE.Direct)USART2/dev/ttySTM4
J8 (VE.Direct)UART4/dev/ttySTM5
J9 (VE.Direct)UART7/dev/ttySTM7
J13/J14 (LIN1, master by default)UART1/dev/ttySTM1
J11/J12 (LIN2, slave by default)UART3/dev/ttySTM3
J6 (RS485)UART8/dev/ttySTM2
J5 (CAN)CAN 1 and 2Network devices can0 and can1