The SmartSampler2 communicates with a computer via USB.
- Connector type: Mini USB-B
- Cable requirement:
- Use the originally supplied cable to ensure a waterproof connection.
- Standard Mini USB-B cables will work for data, but will not provide a watertight seal.
- Connection instructions:
- Insert the Mini USB-B plug carefully into the socket.
- Hand-tighten the waterproof screw connector if using the supplied cable.
- Do not overtighten the screw connection, as this may damage the USB socket.
2.1 I/O & Pinouts
- Universal Ports:
- 8 configurable ports (sensor, pump, valve, communication).
- Each port can be enabled with a license (configured in SmartConfig2.1).
- Selectable Supply voltages via Jumper: 3.3 V, 5 V, or Vin.
- Protection: Built-in ESD diodes, surge protection, and isolation where required.
- Pinout diagrams are provided per connector (see appendix).
2.2 Communication Ports
- RS-485: Differential interface, 120 Ω termination jumper, biasing resistors onboard.
- RS-232: Single-ended serial port.
- I²C: For expansion modules and Pods.
- UART1 / UART2: Custom communication or module interfacing.
- SDI-12: One-wire sensor bus, standard compliant.
- Note: Baud rate, addressing, parity, and timeouts are configured in SmartConfig2.1, not in hardware.
2.3 Indicators & Buttons
- LED indicators:
- Steady on = configuration mode (powered, not started).
- Blinking slow = working mode (normal operation).
- Blinking fast = error condition.
- Reset button: Restarts the device.
- Recovery jumper: Forces factory defaults for recovery.