Search found 21 matches

by mabaka
Sun Feb 14, 2016 2:40 pm
Forum: Software development
Topic: MultiWii EZ-GUI
Replies: 1434
Views: 615215

Re: MultiWii EZ-GUI

stronnag wrote:...If you're serious about GPS / NAV on naze32 & clones, consider using the CF INAV fork...


Let me absolutetly confirm that CF INAV fork GPS functions work like a charm in naze32 and similar navigators.

This is a iNav RTH test in very windy conditions.

Excellent work by DigitalEntity.
by mabaka
Sat Aug 08, 2015 10:29 am
Forum: Software development
Topic: Sonar HC-SR04 Support now implemented in MW2.4
Replies: 102
Views: 72585

Re: Sonar HC-SR04 Support now implemented in MW2.4 -> optimi

Hi, jaysonragasa. Impressive work! I've implemented it on a Crius AIO and expect to test in field shortly. I observe that in your ISR for the echo pulse you use 32 bits arithmetic. The problem is in the division. If you inspect the resultant assembly code ('avr-objdump -dS sensors.cpp.o') you get th...
by mabaka
Mon Feb 09, 2015 4:46 pm
Forum: Ideas
Topic: MultiWii based balancing robot (Segway)
Replies: 35
Views: 56478

Re: MultiWii based balancing robot (Segway)

Thanks mabaka for your answer. Your example works perfect. Additionally i connected HIGH to MS1 and MS2, you didn't write this, without this it is not working. But I still don't know why The whole of mahowik's finaly product does not work for me. sorry my eng. regards Note requirement: A4988 motor ...
by mabaka
Wed Feb 04, 2015 3:57 pm
Forum: Ideas
Topic: MultiWii based balancing robot (Segway)
Replies: 35
Views: 56478

Re: MultiWii based balancing robot (Segway)

Hi I did everythink as you described but only mpu and beeper working, HC-06 and motors are not . Sorry my eng. regards Try first the steppers alone. //simple A4988 connection //jumper reset and sleep together //connect VDD to Arduino 3.3v or 5v //connect GND to Arduino GND (GND near VDD) //connect ...
by mabaka
Tue Jan 20, 2015 12:26 pm
Forum: Ideas
Topic: MultiWii based balancing robot (Segway)
Replies: 35
Views: 56478

Re: MultiWii based balancing robot (Segway)

... New features: - Fall down?! New auto rise (stand up) function! (can be activated via box in GUI). Now it's also possible to stand up manually when it's fall down. - Position hold (can be activated via box in GUI). ... Excuse me; I can't see any difference in the GUI from the 2.3 distribution co...
by mabaka
Tue Sep 30, 2014 8:37 am
Forum: Ideas
Topic: MultiWii based balancing robot (Segway)
Replies: 35
Views: 56478

Re: MultiWii based Segway -> on real RC 1/18 circuit

http://youtube.com/watch?v=s30CMZcGZ_8

On a real 1/18 circuit, driven by Barbie Harley-Davidson, 1080p.

Not too fast: HTML5 slow motion mode not recommended (better use 2x).
by mabaka
Mon Jul 07, 2014 12:11 pm
Forum: Frames
Topic: My First Quadrocopter Design
Replies: 22
Views: 14983

Re: My First Quadrocopter Design

If im not mistaken the reason for only connecting one esc to power the arduino is a safety issue. Having multiple power supplies connected together can lead to problems with voltage difference across the escs, one esc trying to power another one, possible ground loop or similar effect maybe?? I don...
by mabaka
Mon Jul 07, 2014 8:53 am
Forum: Shields, boards and sensors
Topic: Voltage sensor with improved resolution for MultiWii
Replies: 36
Views: 18593

Re: Voltage sensor with improved resolution for MultiWii

...As far as I know there are of 1.235V and 2.5V... After a more exhaustive search, there are more values of voltage references. The LM4040 from Texas Instruments and others can be chosen with fixed output voltages of 2.048V, 2.5V, 3V, 4.096V, 5V, 8.192V, and 10V, so the most convenient one seems t...
by mabaka
Mon Jul 07, 2014 12:20 am
Forum: Shields, boards and sensors
Topic: Voltage sensor with improved resolution for MultiWii
Replies: 36
Views: 18593

Re: Voltage sensor with improved resolution for MultiWii

Sorry, I had in mind wrongly 2S lipos used in cars. For 3S and 4S, add voltage references in series or use aditionally voltage divider.
by mabaka
Sun Jul 06, 2014 11:56 pm
Forum: Shields, boards and sensors
Topic: Voltage sensor with improved resolution for MultiWii
Replies: 36
Views: 18593

Re: Voltage sensor with improved resolution for MultiWii

Placing a zener seems to reduce the voltage, instead of dividing it, to me an excellent idea. Zeners are not very precise. If you take several zeners of, say, 3.9V, probably they are all in a range 3.7V to 4.1V. So a more precise solution can be place a reference voltage diode, which is moreless a p...
by mabaka
Wed Jul 02, 2014 10:33 am
Forum: Software development
Topic: Why development has stopped?
Replies: 230
Views: 74437

Re: Why development has stopped?

I'll respond to myself partially, after a fast test: -Save some code on 32K limited implementations (if compiler doesn't optimize extremely). No: just the opposite. Adds four bytes (if uint32_t) of ram, and it seems that using an uint32_t occupies more than a function call. The rest of benefits appl...
by mabaka
Wed Jul 02, 2014 10:06 am
Forum: Software development
Topic: Why development has stopped?
Replies: 230
Views: 74437

Re: Why development has stopped? -> many millis()

Hi. There will be a 2.4 for sure. Inspecting MultiWii sources, there are around 14 calls to millis(), which does not mean there are 14 calls in each main loop. This is millis() code: unsigned long millis() { unsigned long m; uint8_t oldSREG = SREG; // disable interrupts while we read timer0_millis o...
by mabaka
Fri Jun 13, 2014 11:51 am
Forum: Pictures & Videos
Topic: MultiWii does UAV , videos and full code
Replies: 11
Views: 6684

Re: MultiWii does UAV , videos and full code

Hi e_lm_70.

Please, confirm in OSD_FrSky.ino (confusing):

Code: Select all

ISR(INT2_vect)
{
  if (PIND & 4)
    PORTD=~8;   // D3->0; others->1 -- Shouldn't be PORTD&=~8; (D3->0; others unchanged)
  else
    PORTD|=8;
}
by mabaka
Sat Feb 22, 2014 12:02 pm
Forum: Pictures & Videos
Topic: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)
Replies: 6
Views: 4886

Re: MultiWii 2.3 on R/C bike (battery graphs)

m (1920x1080) Battery current, voltage and power graphs in real time. Current is sensed with a Pololu ±75A ACS709 Hall effect-based linear current sensor. Voltage is sensed with a resistor divider. Power is the product (shown inverted for clarity). As expected, current is always positive (no energy ...
by mabaka
Fri Jan 17, 2014 1:56 pm
Forum: Software development
Topic: Building Multiwii with Atmel-Studio 6.1
Replies: 3
Views: 1905

Re: Building Multiwii with Atmel-Studio 6.1 -> +Naggy

I fully agree. In adition, please try Naggy, an extension to Atmel Studio that will gray out those sections of code that are not included due to #idef's (I think Eclipse includes this). However, it seems that for Naggy to work fully, #include "config.h" must be inserted. In attached exampl...
by mabaka
Tue Jan 14, 2014 10:16 am
Forum: Pictures & Videos
Topic: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)
Replies: 6
Views: 4886

Re: MultiWii 2.3 on 1/5 R/C bike: gyroscopic camera + GPS

http://youtube.com/watch?v=YUonxEg6G7Q&hd=1

Same with GPS trajectory on Google Maps captured.

Trajectory on Google Maps
Trajectory on Google Maps
by mabaka
Thu Jan 02, 2014 1:53 pm
Forum: Pictures & Videos
Topic: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)
Replies: 6
Views: 4886

Re: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)

The Camera stab works really god.. Apparently. There is an inherent limitation, since the bike swings around 120° (60° to each side from vertical) and the servo does 90°. Telemetry seems a bit slow. I forgot to refresh at 10 Hz (Win GUI), so it was captured at default 5 Hz. I'll try to remember thi...
by mabaka
Thu Jan 02, 2014 12:47 pm
Forum: Pictures & Videos
Topic: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)
Replies: 6
Views: 4886

Re: MultiWii 2.3 on 1/5 R/C bike inclinometer+gyro cam

http://youtube.com/watch?v=0BEk9ReqYeQ&hd=1

Changes from above version on car:
  • MultiWii: v2.2 -> v2.3
  • Data transmission: 3DR at 57600 bps -> bluetooth class 1 at 115200 bps
by mabaka
Tue Nov 12, 2013 3:42 pm
Forum: Pictures & Videos
Topic: MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)
Replies: 6
Views: 4886

MultiWii 2.2 on gas 1/10 R/C car (virtual dashboard)

m Multiwii 2.2 (gimbal only, 0 motors, no R/C) on an 1/10 R/C gas car. WinGUI (distinguisable at 1920x1080) captured on laptop. Arduino with MPU6050 (default filtering) and HMC5883 sensors, oriented as in Crius SE V2.5. I2C GPS also installed, but moreless symbolic. Data transmission with 3DR at 576...
by mabaka
Mon Oct 21, 2013 11:54 pm
Forum: Software development
Topic: MultiWii Serial Protocol help...
Replies: 44
Views: 28027

Re: MultiWii Serial Protocol help... -> error

9600 baud - Works! 19200 baud - Works! 38400 baud - Works! 57600 baud - Ignores MSP commands! 115200 baud - Works! I would suggest modifying SerialOpen() in Serial.ino as appears below. The original code has is weird and relies in optimizer, but should work at 57600. Code below also includes roundi...
by mabaka
Thu Oct 17, 2013 12:57 pm
Forum: Software development
Topic: Release v2.3 is coming soon... prepare
Replies: 96
Views: 46457

Re: Release v2.3 is coming soon... prepare -> parameters...

F_CPU and I2C_SPEED usage. I2C_SPEED parameter usage. It is defined in config.h; its default value is for slow I2C (100 KHz), and is rarely used. On most TWBR (TWI Bit Rate Register) register writes appears explicitly 400000L (for 400 KHz). So something like this would be more elegant: #define I2C_S...