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· MPN: WRL-28896

$550.00 |
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  The RockBLOCK 9704 by Ground Control is a breakout board for the new Iridium 9704 including a built-in patch antenna and a supercap charger to ena...

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The RockBLOCK 9704 by Ground Control is a breakout board for the new Iridium 9704 including a built-in patch antenna and a supercap charger to enable low power operation. If you need low data rate connectivity over the entire globe, Iridium is the answer. RockBLOCK 9704 leverages the Iridium Certus 9704 satellite IoT module to deliver truly global bi-directional messaging from 25 bytes up to 100 KB, with typical end-to-cloud latency of < 10 s.

Hardware interfaces include a TTL 3.3 V UART, USB-C serial bridge, U.FL for GNSS passthrough, and SMA or integrated patch antenna options. It runs from 4.0-5.3 V DC (3.6-4.5 V battery), peaks at 1.4 W, idles at < 60 mW, and sleeps at < 5 mW – perfect for battery-sensitive deployments.

In addition to top notch hardware, Ground Control has done an exquisite job easing the task of getting the message data from the field to your target with their Cloudloop Data interface. Once messages leave the device, Cloudloop Data seamlessly routes uplinks and downlinks to your HTTPS or MQTT endpoint, and exposes a REST API and dashboard for device metadata, transmission status, and message history.

Each device requires a monthly fee and a data pack purchase. With flexible, pay-per-message billing and real time usage dashboards, Ground Control delivers true full-stack support – from hardware and network transport through to data delivery – so you can prototype fast and scale instantly.

Check out Ground Control's RockBLOCK product page for airtime costs, coverage maps, and tons of example code and libraries.

 


Features & Specs

 

Physical – Patch Antenna

  • Dimensions: 72 (95) x 75 x 16.5 mm
  • Weight: <50g (inc. patch antenna)
  • Form Factor: PCB assembly with 4mm mounting holes
  • Antenna: Integrated patch antenna

Environmental

  • Operating temperature: -40C to +70C, <95% RH
  • Vibration & Shock: SAE J 1455
  • Ingress Rating: n/a

Connections

  • 16-pin 0.1" pitch male header
  • USB-C
  • U.FL for GNSS

Electrical & Power

  • Voltage: 4.0-5.3 V DC, 3.6-4.5 V Battery, 5 V USB-C
  • Power consumption (max): 1.4 W
  • Power consumption (min): < 5 mW (sleep mode)
  • Power consumption (idle): < 60 mW (registered with network, listening, ready to transmit/receive)

Communication Interfaces

  • Iridium Messaging Transport: 4.8kbps bi-directional messages from 10 to 100,000 bytes. Latency typically < 10s between remote and cloud applications
  • GNSS: U.FL connector available for separate GNSS Passthrough
  • Serial: TTL UART connection (default: 230400baud)
  • USB-C: USB-Serial bridge (default: 230400baud)
  • Digital GPIO: 5x inputs, 3x outputs. Connection via 16 way cable assembly

Developer & Platform Support

  • C & Python libraries, tutorials, and example code
  • Cloudloop integration for message handling and cloud service delivery
  • Prepaid airtime with automatic suspension for cost control

 

Jargon buster

Plain-language definitions for the technical terms used above.

API
An API is a software interface that lets a program control hardware or features provided by the operating system. In this product, API support matters if you want your software to adjust display settings such as brightness or contrast automatically.
breakout
A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
GNSS
GNSS stands for Global Navigation Satellite System, covering positioning systems such as GPS and similar satellite networks. It matters here because high-precision GNSS modules can output lots of serial position data that this product can send wirelessly to a computer or phone.
GPIO
General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
IoT
Short for Internet of Things, meaning physical devices that connect to networks or the internet to send data or be controlled remotely. It matters if you want projects such as connected sensors, remote controls or classroom data-logging activities.
MQTT
A lightweight messaging protocol often used for IoT devices to publish and receive data through a server called a broker. It matters for home automation and sensor networks because it is simple, efficient, and widely supported.
PCB
A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
SMA
A threaded coaxial connector commonly used for antennas. It matters because you need antennas with matching SMA connectors, or suitable adapters, for the LTE and GNSS antenna ports.
u.FL
u.FL is a tiny snap-on antenna connector often used on compact wireless boards. A board with u.FL usually needs an external antenna, which matters if the product will be inside an enclosure or needs better antenna placement.
UART
UART is a simple serial connection that sends data over separate transmit and receive wires, often labelled TX and RX. It matters because this module is designed to replace a wired UART cable with a wireless link while keeping the same serial data format.
USB-C
A modern reversible USB connector used for power and data connections. On this product it matters because it can connect directly to a computer as well as to a microcontroller project.

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