Here you can find Cura quickprint default settings / presets:
High quality print: Layer height: 0.06 mm Walls: 0.8 mm, Fill: 20%
Normal quality print: Layer height: 0.1 mm Walls: 0.8 mm, Fill: 20%
Fast low level quality: Layer height: 0.2 mm Walls: 1 mm, Fill: 10%
All settings in the source code of Cura https://github.com/daid/Cura/blob/SteamEngine/Cura/gui/simpleMode.py
FrSky variometer contains BMP085 barometer sensor for cheap.
Pinout:
Black = Gnd
Red = Vcc
Yellow = SCL (Pro Mini A5)
Brown = SDA (Pro Mini A4)
From http://arduino.cc/forum/index.php?topic=80928.0
From http://arduino.cc/forum/index.php?topic=80928.0
/*
* Theory: all IO pins on Atmega168 are covered by Pin Change Interrupts.
* The PCINT corresponding to the pin must be enabled and masked, and
* an ISR routine provided. Since PCINTs are per port, not per pin, the ISR
* must use some logic to actually implement a per-pin interrupt service.
*/
/* Pin to interrupt map:
* D0-D7 = PCINT 16-23 = PCIR2 = PD = PCIE2 = pcmsk2
* D8-D13 = PCINT 0-5 = PCIR0 = PB = PCIE0 = pcmsk0
* A0-A5 (D14-D19) = PCINT 8-13 = PCIR1 = PC = PCIE1 = pcmsk1
*/
Setup:
PCMSK2 |= (1<<PCINT23);
PCICR |= (1 << PCIE2);
PCMSK0 |= (1<<PCINT0);
PCICR |= (1 << PCIE0);
ISR(PCINT2_vect)
ISR(PCINT0_vect)
{
code here
}
If you’re using MultiWii at Mongoose-board you might wonder how to connect motors to pins.
Pinouts for tricopter:
Yaw Servo: MultiWii pin=3 = PD3 => Mongoose-pin:3
Front Left: MW=11 = PB3 => Mongoose-pin: spi-header (MOSI)
Front Right: MW=10 = PB2 => Mongoose-pin: 10
Rear: MW=9 = PB1 => Mongoose-pin: 9
RX ppm sum: mw=2 = PD2 (soldered straight to atmega328p)
See: http://www.fuzzydrone.org/2012/01/connecting-motors-and-radio-receiver-to.html
SDMInstaller must be run as root on OS X to get it working (formatting etc.)
sudo “/Volumes/SDMInstaller/SDMInst.app/Contents/MacOS/JavaApplicationStub”
Hint: you can find pre-compiled .hex files for all SimonK versions from here : https://github.com/sim-/tgy/downloads
To upload on OS X (for example Hobby King 30A ESC 3A UBEC):
avrdude -c usbasp -pm8 -U flash:w:/Users/xxx/Downloads/tgy_2012-09-30_0d3e617/bs_nfet.hex
Simple way to enable bandwidth throttling on OS X
sudo ipfw pipe 1 config bw 150KByte/s
sudo ipfw add 1 pipe 1 src-port 80
sudo ipfw pipe 1 config bw 20KByte/s
sudo ipfw add 1 pipe 1 dst-port 80
// basic example of OpenSCAD that makes a plate that has holes in it
// you can export this to DXF because it makes 2D projection
module test()
{
// difference = first “object” is cut out with the rest of the objects
difference()
{
// union = all shapes inside union becomes one
// in this case this is the first object
union()
{
cylinder(r=30, h=3, center=true);
cube(size = [100,30,1], center = true);
}
// ok, let’s then punctuate the cylinder+cube combo with holes
for ( i = [0:10] )
{
rotate([0,0,36*i]) // rotate the “world”
translate([25,0,0]) // move away from the center
{
cylinder(r=2, h=5, center=true); // punch a hole
}
}
}
}
projection(cut=true) test();
Tested running 100.000 sin() calls and it took 2594 milliseconds. That means you make call sin() at 38.55kHz. If you want to make 44.1kHz sound in real-time there’s no way you can use the sin() method.
Here’s the code I used
void SpeedTest()
{
float f = 1.23;
Serial.println(millis());
for (uint32_t i=0; i<10000; i++) { f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); f=sin(f); } Serial.println(millis()); Serial.println(f); }