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Height and vertical velocity from a MS barometer Steps towards sjmonk flight control This isn’t a post explaining how Kalman filters work, I assume some working knowledge. The “SimonK” hex is often reflashed to ESC controllers, as it has a refresh rate of approximately Hz, very close to the theoretical refresh limit of just below Hz.
Once done, I’ll post some pics. It’s simomk a long he since I’ve done any programming! I’m dimonk to install it on some opto Afro 30a ESCs. Thread starter alm Start date Apr 30, I’m showing the white programming socket – it really is the easiest way to reprogram these chips. The only tricky thing here is that a “Power surge on USB port can be detected” if you don’t accurately place the pins – causing some sort of short circuit I imagine – so reset the USB port, plug and re-plug the USB programming and take care to place the programming socket accurately – or place it over the c hip and hold in place with blu-tack.
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I’m guessing a 30A ESC won’t be classed as high-voltage, so give that one a try.
SimonK ESC .hex-files (download+avrdude)
I might do a bit of a word doc instruction with some pics later on. Members Current visitors New profile posts Search profile posts.
LEDs on the top feedback about the drone status and look really awesome. It should deliver similar performance, but it has a nice GUI so even I managed flashing afro30s. Instead I wanted to record the simon of developing a Kalman filter to derive both the height and the vertical velocity of a quadcopter using a MS barometer, as it may be useful to others.
Flashing SimonK Hex to ESCs
I’m using Ubuntu Linux and just typed the following in a terminal from the tgy-master folder that is. I like to see people modifying their firmware to allow diversity. Tin the hez pins and be careful not to melt the plastic and bridge the connections. Robo Challenge Kinematic Events.
Compiling SimonK ESC Firmware and Reversing the Motor Direction in Software Instead of Hardware
I can now control my quadcopter with a PS2 controller – really cool! That would be great.
Stanley Knife Now carefully cut three sides of the heat shrink around the Atmega chip on your esc to make a flap so that you can easily access the entire chip ready for programming.
In quadcopters this refresh rate is far too slow – I have seen Hz suggested as a suitable update frequency. Tools Needed if you’ve programmed your ESCs before you’ll already have this stuff: Controlling four motors with Atmega Timer1 One of the challenges in a quadcopter project is to correctly control the four thrust motors, via ESCs. Haha, that and comments are the mark of a good programmer.
Kalman filter based on the barometric height data. So we are having to do the job of dedic…. Bookmarks Bookmarks Digg del. This is especially useful if you are like me and don’t want the extra weight of bullet connectors and have simply soldered and heat shrunk your motor connections. We could consider using an AVR with four bit hardware timers and use the four timer output pins, but it is interesting to see what can be done with just one.
I’d say try it.