We have a new image of Raspbian with kernel patched with a real-time patch from Ingo Molnar available for download. It is useful for projects that require stable low latencies – max latency with PREEMPT-RT kernel on Raspberry is around ~70 microseconds (without any overclocking). The image was tested for compatibility with Raspberry Pi Model B and Raspberry Pi Model B+.
As we have reached multiple stretch goals all campaign backers will receive an accessory kit. It includes DF13 wires for prototyping and connecting additional sensors and an active GPS/Glonass antenna. All these accesories have been manufactured and delivered to our warehouse.
To ensure seamless storage, packaging and delivery we have partnered with Shipwire – a leading fulfillment company. We rely on their expertise in logistics.
The process has started and first Navio boards have been assembled. We are going to test them soon and ensure that they are functioning as well as our hand soldered prototypes.
Whole batch of Navio PCBs is ready and the process of component procurement has been finished. The only componentsleft are GPS modules with raw data – we expect them by 20th August. We will have first Navio samples by next week. As soon as we fully test them and make sure that the quality complies with our standards we will launch the assembly of all boards.
Recently we have received a Raspberry Pi compatible board from Lemaker named Banana Pi. And even though Navio’s main supported board is Raspberry Pi, it is good when there are alternatives that can provide additional capabilities for advanced users.
Banana Pi has a great ratio of performance and price. Being just a little bit more expensive than Raspberry Pi it is much more snappier – it’s got 4x times more MIPS. It also provides extended connectivity capabilities: gigabit ethernet, IR receiver, SATA port.
Lemaker team made a great work for making Banana Pi compatible with Raspberry Pi as much as possible – you can run Raspbian distribution, work with I2C and SPI peripherals, use ported libraries like RPi.GPIO and WiringPI. Working with Banana Pi feels very familiar.
We tested our Navio shield with Banana Pi and here are the results:
Thank you for all the support and kind words. Indiegogo campaign for Navio ends soon and this is the last chance to get Navio at a special price and with additional accessories: a pack of DF13 jumper wires for connecting extensions and active GPS/GLONASS antenna!
To be used in autopilot applications Navio needs to decode RC input. Measuring each PWM channel requires multiple connectors and plenty of wires. PPM sum signal combines all PWMs from the receiver in one sequence, which could be transferred over single wire.
Most modern receivers output PPM, but if you have an older RC gear with only PWM output an encoder can be used. For the S.Bus receivers we are preparing a separate driver, however a S.Bus to PPM converter exists.
In case you want to run the code on Raspberry Pi without Navio please note, GPIOs on Raspberry Pi are not 5V tolerant. A divider is required to lower the voltage of the signal.
DGX team announced the support for Navio platform. The project was first started for the Outback Joe Search & Rescue Mission competition and continues to develop as an opensource linux-based project. Project’s main goals are easy interface for developers and usage of opensource libraries available in the internet. DGX autopilot has already been tested in flight and proved to work.
We wish DGX team to keep the good work and we will provide any support needed.
We’ve successfully reached three stretch goals for Navio and now all supporters who pledged for Navio and Navio Raw board will receive additional handy stuff: GPS\GLONASS antenna, pack of DF13 wires and onboard FRAM chip.
We have more ideas how we can improve Navio platform and provide additional useful things. Today we present new stretch goal for Navio – 3D model of a special case that can be printed and used to protect and mount Navio.
Navio was primarily designed to be used with Raspberry Pi. It is a great single board computer, but not the only one that Navio can be used with. We’d like to share information about alternative boards that are pin-to-pin compatible with Raspberry Pi and thus should be compatible with Navio.
Created by Lemaker.org, the Banana Pi duplicates the layout and footprint of the Raspberry Pi and packs more power and connectivity. One of the downsides is that 26-pin header was moved closer to the RCA connector and to fit Navio properly you will have to desolder it. Actually, we remove RCA connector from Raspberries anyway to reduce the size.
- SOC: Allwinner A20 Cortex-A7 Dual-Core clocked to 1GHz
- GPU: ARM Mali400MP2
- RAM: 1GB
- Ports: 1000Ethernet, SATA, HDMI, LVDS, CSI, 2xUSB host, 3.5 audio
- Features: IR-receiver, CAN, OTG connector, microphone, power switch
Developed by Solid-Run, the creator of the CuBox product line with which the HummingBoard is similar in features. Design and layout are also the same as in Raspberry Pi, but even more powerful with quad-core processor and 2GB of memory. It’s specifications:
- SOC: Quad-core Cortex-A9 Freescale i.MX6 clocked to 1GHz
- GPU: Vivante GC2000
- RAM: 2GB
- Ports: 1000Ethernet, mSATA, HDMI, LVDS, MIPI CSI, mini-PCI-E, 2xUSB host, 3.5 audio
- Features: Wi-Fi, Bluetooth, FlexCAN, Real-time clock, IR-receiver, SPDIF out
We hope to get our hands on these boards soon and test them with Navio.