Our latest creation is the PI-REPEATER-2X, a full 2 channel repeater controller designed around the Raspberry Pi computer system.
The PI-REPEATER-2X utilizes the 40 pin GPIO expansion header on the PI 2/3, using stackable headers so the pins that are left over
are still available for your own custom expansion projects.
The PI-REPEATER-2X accepts radio level signals for COS/CTCSS and provides a mosfet driven PTT signal so you can control either modern radios with logic level controls, or radios with relays that require more drive capability with ease.
In addition to interfacing with the radios, there is also a GPIO expander that provides an additional 8 digital logic pins. For analog sensors, there is also 8 channels of analog sensing things like temperature sensors, wind sensors, voltage sensors, whatever you need that provides an analog output can be fitted (custom code may be requried to handle the data).
Since the PI-REPEATER-2X only uses the GPIO and standard logic busses (I2C, SPI, I2S), the hardware is compatible with any operating system you want to use, and any controller software that can interface with the logic busses and GPIO pins. We have chosen SVXlink as our operating controller software, so we know the most about this platform, but certainly others will work with some configuration. For the audio, the Raspberry PI is known to have less than desirable audio, so we include a stereo codec to keep the sound input and output sounding great.
GPS has also been partitioned into the design so you can have a cheap network independent time source. We have chosen an off the shelf module from Spark-Fun that utilizes an SMA interfaced antenna, so you can have the freedom to put the antenna where-ever suits your installation. Note that the hardware supports the GPS, but software has not enabled this feature in our provided images.
We understand that many of you already have a Raspberry Pi computer laying around, so we are offering a few options to get you only what you need to get going. You can add items directly from this page, or click into each item for more details as needed.
The PI-REPEATER-2X is a full duplex, 2 port repeater controller platform that mounts on your Raspberry Pi 2/3. INCLUDED: 1x 2-port controller board, 3x DB9 interface cables (2 ports and ADC), 1x DB15 interface cable (GPIO interface) REQUIRED ACCESSORIES: 1x Raspberry Pi 2/3 computer, 1x Ethernet Cable, 1x 2.5+A MicroUSB power source, 2X Cables to interface your radios OPTIONAL ACCESSORIES: 1x Enclosure (recommend metal, fully enclosed), 1x Sparkfun GPS module (See manual), 1x Sparkfun GPS antenna (See manual)
This is a 2 channel controller kit (excluding rack mount case) for our PI-REPEATER-2X controller. This includes the Raspberry Pi 3, 32GB SD card, Panel mount Dsub Cable adapters, and USB power supply. This includes everything required to get the PI-REPEATER-2X board up and running. If you don't need the full kit and only want the basic controller board and cables, please visit the item page for only the controller. Recommended accessory is the 1RU Rack mount kit for shielding and permanent installs.
This is a 2 channel controller kit (including rack mount case) for our PI-REPEATER-2X controller. This includes the Raspberry Pi 3, 32GB SD card, hardware, Panel mount DB9 Cable adapters, and USB power supply. If you don't need the full kit and only want the basic controller board and cables, please visit the item page for only the controller. This kit will come fully assembled, ready to go.
ESTIMATED AVAILABILITY 15-NOV-2017 An aluminum case that measures 8(L)x4(W)x1.75(H) inches with cutouts to support power input, USB/Ethernet ports on the Raspberry Pi and provides mounting locations for the DSUB connectors used for radio interfaces / Analog Converter / GPIO port.
A bare bones Raspberry Pi 3 board, does not include any accessories
64GB microSD Card, Class 10 for use with the Raspberry Pi
32Gb SD Card, Class 10 for use with the Raspberry Pi.
16GB microSD Card, Class 10 for use with the Raspberry Pi
Want to build up a PI-REPEATER but already have a interface cable that doesn't match our premade cables? This kit will get you there quickly, the kit comes with a DB9 shroud kit, a female DB9 solder cup connector, and a pre-crimped 2x5 ribbon cable. All you need to supply is the wire strippers, soldering iron and shrink tubing/epoxy as you desire for insulation of the solder joints.
This kit come with a DB9 male solder cup connector and the shroud body so you can build up the radio interface cables specific to your setup.
Replacement 15 pin ribbon cable that is used to interface the GPIO to the PI-REPEATER-2X.
A compact 5V/3A power supply module for powering the Raspberry Pi from a 12V power source.
Ever wanted to interface your Raspberry Pi to something that only uses +5V logic levels? As you quickly came to learn, the GPIO on the Pi are not 5V tolerant, so hooking up the device to your Pi would render the board(s) damaged. This board takes care of the issue by providing level shifting circuitry for ALL of the GPIO pins, while still allowing you access to the 3.3V logic level signals as well. With this board, you can work with 3.3V GPIO and 5V GPIO together at the same time, even on the same pins at the same time. This is great for things like the SPI and I2C bus interface.