Search found 11 matches

by noob405
20 Apr 2014, 06:31
Forum: Robot Building
Topic: NXT: How to use external power supply for non-LEGO-sensors?
Replies: 5
Views: 41347

Re: NXT: How to use external power supply for non-LEGO-sensors?

Hi guys,

took a while to test the circuit.
It doesn't work!

Is it possible that I need different
pullup resistors?

Cheers
Noob
by noob405
25 Mar 2014, 07:41
Forum: Robot Building
Topic: NXT: How to use external power supply for non-LEGO-sensors?
Replies: 5
Views: 41347

Re: NXT: How to use external power supply for non-LEGO-sensors?

Will do this week and report
what happend.

Thanks again Matt
Noob
by noob405
24 Mar 2014, 16:57
Forum: Robot Building
Topic: NXT: How to use external power supply for non-LEGO-sensors?
Replies: 5
Views: 41347

Re: NXT: How to use external power supply for non-LEGO-sensors?

Hi, thanks to You Matt for the quick reply!! Lipo output is regulated at 5V and that´s fine for the sensors. Good to know, that the NXT can handle that too. This "common ground thing" still gives me some headaches. Do I have to connect the GNDs of the NXT with the GND of the Lipo, like th...
by noob405
21 Mar 2014, 13:36
Forum: Robot Building
Topic: NXT: How to use external power supply for non-LEGO-sensors?
Replies: 5
Views: 41347

NXT: How to use external power supply for non-LEGO-sensors?

Hi everybody, I allready posted this to the German Mindstorms forum, but did not get any final hints. Maybe You guys can give me some ideas. This is what I do: I have several ultrasonic sensors (Devantech SRF10) connected to my NXT brick. The I2C circuit for this is straight forward and even I- as a...
by noob405
22 Jan 2014, 11:43
Forum: Mindstorms Hardware
Topic: Mindsensors SensorMUX - channel broken?
Replies: 1
Views: 15498

Mindsensors SensorMUX - channel broken?

Hi guys, is someone in here using the Mindsensors SensorMUX? other than a hardware defect: is there another reason why all my sensors work flawlessly on channel 2-4 of the SensorMUX but on channel 1 just the touch sensor is reacting? I´m using NXC and the only thing i change in the code is the chan...
by noob405
16 Jan 2014, 16:41
Forum: Mindstorms Software
Topic: NXC: Mindsensor 8 channel servo - Servo blocks
Replies: 1
Views: 4638

Re: NXC: Mindsensor 8 channel servo - Servo blocks

I just wanted to let You all know, that I solved the problem.
The reason for those blocked servos was my power supply.
Yesterday I powered the 8 channel with an 3s Lipo (1200 mAh, 5A max.)
and the arm worked!!

Cheers
noob405
by noob405
03 Jan 2014, 11:53
Forum: Mindstorms Software
Topic: NXC: Mindsensor 8 channel servo - Servo blocks
Replies: 1
Views: 4638

NXC: Mindsensor 8 channel servo - Servo blocks

Hi, I allready posted my problem on the Mindsensors forum last year - without any response. Maybe You guys can give me a hint? I´m using a pair of HITEC HS-5585 MH Servos to to lift a 300g can. The robot arm is 25cm long and the servos have a stall torque of 14 kg.cm. Tests of the strength of the c...
by noob405
29 Aug 2013, 19:54
Forum: Mindstorms Software
Topic: NXC: problem with reading out the servo position
Replies: 9
Views: 16898

Re: NXC: problem with reading out the servo position

Thanks Matt
Will try later and report results.

Cheers
noob
by noob405
29 Aug 2013, 16:59
Forum: Mindstorms Software
Topic: NXC: problem with reading out the servo position
Replies: 9
Views: 16898

Re: NXC: problem with reading out the servo position

Hey! First no response and now 6! Thanks a lot so far. I did´t do anything fancy. Yes, doc-helmut, You´re right. I just got my idea to read out the values from the Mindsensor's servo manual, not any general NXC i2c guide. My code seems to work - somehow. As You can see in my test program, I´m set...
by noob405
28 Aug 2013, 17:12
Forum: Mindstorms Software
Topic: NXC: problem with reading out the servo position
Replies: 9
Views: 16898

Re: NXC: problem with reading out the servo position

Hi again,

is anyone in here using the NXTServo-v3. Would like to solve this
problem and get a deeper understanding.

THX
noob