I've been working on an open source autopilot for a while now. It's not finished yet but it's getting close. The board is quite small - about the size of an ESC - and weighs 10g.
Features:* Plugs directly into any R/C receiver - up to nine control channels.* Can control up to ten servos.* Combined GPS/IR leveler board makes installation easy.* Barometric altimeter.* microSD card for flight plans and data storage.* Fully open source software. You can improve it or change it however you like.* Easily reprogrammed via USB with no need for a special programmer.* Powerful on-board flight scripting language.* Optional radio link to the ground.* Optional 9-axis IMU.* Many expansion options including I2C, SPI, etc.* Powerful ARM7 processorBy the way this is an open source project - not a commercial project - so please don't ask me for release dates or free samples!The autopilot software is at:http://code.google.com/p/flyingfox/My original (kinda old) build thread is at:http://www.rcgroups.com/forums/showthread.php?t=734791
Any chance of a picture of the bottom? The quality of this board is amazing...I can't believe you're doing one-offs. Maybe we should produce and sell them for you?
Someone asked about the script language: it's a C interpreter I wrote for Flying Fox called picoc. I've spent the last few months writing it and making it into a really solid general purpose C interpreter for embedded systems. It's already being used in a couple of other projects: a computer vision robot and an embedded monitor.
The language looks just like standard C so anyone familiar with C/C++/Java/Javascript will find it a breeze to program in.
The circular sensor is (as Brian says) a barometric pressure sensor called an HP03 from Hope RF. It's cheap and has reasonable accuracy.
The microSD card is on the bottom, as are quite a few other components.
Brian, I used to use Olimex (from Bulgaria) for PCBs but now that I'm doing high-density four-layer PCBs they don't have the facilities for that. Now I'm using a Chinese company Myro PCB who can handle my more complex PCBs with multiple layers, very fine feature size and small via sizes.
Hey Chris,
The circular sensor is a barometric pressure sensor made by a company call EPCOS. It's one of the sensors I considered but ultimately went for a Bosch variant because it had decent performance and was available cheap from digi-key.
Zik,
Nice clean board! You mentioned a Bulgarian connection for fabrication in the rcgroups thread. Do you have contact info? I'm on the lookout for a reliable and inexpensive place to get things made.
Comments
the eagle files are versioned as 0.92, but the picture shows version 1.0. Are they any different?
--Rasit
The language looks just like standard C so anyone familiar with C/C++/Java/Javascript will find it a breeze to program in.
The google code project for picoc is here: http://code.google.com/p/picoc/
The circular sensor is (as Brian says) a barometric pressure sensor called an HP03 from Hope RF. It's cheap and has reasonable accuracy.
The microSD card is on the bottom, as are quite a few other components.
Brian, I used to use Olimex (from Bulgaria) for PCBs but now that I'm doing high-density four-layer PCBs they don't have the facilities for that. Now I'm using a Chinese company Myro PCB who can handle my more complex PCBs with multiple layers, very fine feature size and small via sizes.
The circular sensor is a barometric pressure sensor made by a company call EPCOS. It's one of the sensors I considered but ultimately went for a Bosch variant because it had decent performance and was available cheap from digi-key.
Zik,
Nice clean board! You mentioned a Bulgarian connection for fabrication in the rcgroups thread. Do you have contact info? I'm on the lookout for a reliable and inexpensive place to get things made.
Cheers,
Brian
Is the SD card on the bottom?
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