Search found 18338 matches

by jhsa
Wed Apr 14, 2021 2:27 pm
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

Cool, Well done :D ;)

João
by jhsa
Tue Apr 13, 2021 9:27 pm
Forum: Hardware
Topic: Bad Eeprom error. 9xtreme/encoder.
Replies: 36
Views: 4422

Re: Bad Eeprom error. 9xtreme/encoder.

Try saying again that "it is the last time" :mrgreen:
Last time it failed when you said it ;) :)

João
by jhsa
Wed Apr 07, 2021 3:12 pm
Forum: er9x
Topic: Q: er9x compatibility with 2021 FW for 4-in-1 MPM (v1.3.2.58 or .61)
Replies: 12
Views: 714

Re: Q: er9x compatibility with 2021 FW for 4-in-1 MPM (v1.3.2.58 or .61)

Ok, good, thanks.. Obviously I haven't been following all this since a while :)

João
by jhsa
Fri Apr 02, 2021 2:48 pm
Forum: er9x
Topic: Q: er9x compatibility with 2021 FW for 4-in-1 MPM (v1.3.2.58 or .61)
Replies: 12
Views: 714

Re: Q: er9x compatibility with 2021 FW for 4-in-1 MPM (v1.3.2.58 or .61)

Could it be that the changes made to the bootloader (obviously without Mike knowing about it) broke the capability of the MPM being able to be updated by the ErskyTX firmware.. This concerns me because I have a radio with an MPM built in it, and it would be a pain to even flash a new bootloader to i...
by jhsa
Mon Mar 29, 2021 9:34 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: News from Michel Strens ?
Replies: 3
Views: 290

Re: News from Michel Strens ?

That would be a shame.. :(
I hope he is ok..
I can see that DIY is dying on RC :( So much that I have also lost interest on it since a while.. I wish all that came back.
:(

João
by jhsa
Sun Mar 21, 2021 12:51 am
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

There should not be any voltage drop with a Mosfet..

João
by jhsa
Sat Mar 20, 2021 12:54 am
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

I think I have Mosfets on some of my radios charging circuit. Will try charging them with a B6 charger tomorrow. But I have NiMh batteries on my radios. I have never charged any Lithium battery inside a radio. I like my radios a lot ;) :P :mrgreen:

João
by jhsa
Fri Mar 19, 2021 5:57 pm
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

Oh, wait there, You didn't say you were charging Lithium batteries. I thought you were using some HiMh or NiCad batteries..

João
by jhsa
Thu Mar 18, 2021 6:54 pm
Forum: er9x
Topic: er9x development
Replies: 3179
Views: 708750

Re: er9x development

I understand you Mike.. :) But it is the DIY part that I am missing.. :( I always enjoyed trying making my radios better than the commercial units.. With your development, that was achieved a few times :) Actually, if the commercial radios, specially Frsky, are where they are, is because of people l...
by jhsa
Thu Mar 18, 2021 3:48 pm
Forum: er9x
Topic: er9x development
Replies: 3179
Views: 708750

Re: er9x development

Well, Mike, I do understand your decision and cannot blame you for doing that. :) But, many of you haven't seen me so often here on these forums since quite a while. I think it is time for me to explain why. When er9x came along, I really got excited about the idea of building my own radio with a ve...
by jhsa
Mon Mar 15, 2021 6:00 pm
Forum: Software
Topic: 9XR PRO Bricked problem
Replies: 16
Views: 3195

Re: 9XR PRO Bricked problem

Nice that you have fixed it. Well done.. :)
Yes, as said above, you can just short that resistor.
There are a couple situations that caused that resistor to go bad. One of them is inserting or removing the RF module while the radio is ON. Always turn the radio OFF before you do that..

João
by jhsa
Thu Mar 11, 2021 10:45 pm
Forum: Software
Topic: 9XR PRO Bricked problem
Replies: 16
Views: 3195

Re: 9XR PRO Bricked problem

Doesn't the blue light also turn ON?
Also, you are using a 2s battery? How did you connect it to the radio? The connector on the radio is for a 3s battery as far as I remember? So I guess a 2s balance charge connector won't work?

João
by jhsa
Mon Mar 08, 2021 11:16 pm
Forum: ersky9xr
Topic: Pro voice stops, screen locks, controls lock
Replies: 7
Views: 528

Re: Pro voice stops, screen locks, controls lock

No, been building some audio stuff for my work ( musician). It is also fun, I love sound and lights. :) The problem is that with the arrival of all these new radios there isn't so much DIY anymore. This is what made me enjoy the hobby even more, building my radios and receivers, and all the other el...
by jhsa
Mon Mar 08, 2021 5:51 pm
Forum: ersky9xr
Topic: Pro voice stops, screen locks, controls lock
Replies: 7
Views: 528

Re: Pro voice stops, screen locks, controls lock

It looks like I will have to remove some dust from my 9XR PRO and update it :)
It won't be today though.. :(
Need to get back to model flying again.. Been busy with other stuff.

João
by jhsa
Mon Mar 08, 2021 4:58 pm
Forum: ersky9xr
Topic: Pro voice stops, screen locks, controls lock
Replies: 7
Views: 528

Re: Pro voice stops, screen locks, controls lock

Did you update to the firmware to the latest?
Did you try to remove the voice files you added? basically go back to the voice pack you had just before this started to happen..

João
by jhsa
Wed Feb 24, 2021 7:25 pm
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

All you need to do is to wire a suitable P-Channel MOSFET across the existing protection diode, source to the charger input, drain to the other side of the diode and gate to ground. You may wish to find a MOSFET in a wired package (e.g. TO92) rather than a surface mount device. Just find one that m...
by jhsa
Mon Feb 22, 2021 10:14 pm
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

by jhsa
Mon Feb 22, 2021 10:07 pm
Forum: Hardware
Topic: Charging port.
Replies: 38
Views: 3419

Re: Charging port.

A while ago, I have designed a completely new switch board for my 9x radios, that had reverse polarity protection on both power and charge circuits I think.. It would also keep the radio ON if the switch suddenly failed and made some bad connection. I need to search my old files.. actually, all my r...
by jhsa
Mon Feb 22, 2021 12:48 am
Forum: Electronic Mods
Topic: What to choose in 2021
Replies: 2
Views: 876

Re: What to choose in 2021

Have a look at the "MultiProtocol" module :)

João
by jhsa
Mon Feb 22, 2021 12:44 am
Forum: Hardware
Topic: Taranis X9E, how know which component it is?
Replies: 4
Views: 707

Re: Taranis X9E, how know which component it is?

MOSFETS don't like to be working very close to their maximum gate voltage. They will eventually get destroyed. I remember the Ar9x board used AO3401, which has a Gate/Source max voltage of 12V, and I thought it was quite low.. The latest version used the AO3407A (20V). This Transistor is very cheap ...
by jhsa
Wed Feb 17, 2021 6:07 pm
Forum: Hardware
Topic: Taranis X9E, how know which component it is?
Replies: 4
Views: 707

Re: Taranis X9E, how know which component it is?

Hmmm, that Mosfet seems to have a quite low Gate-Source maximum voltage, only 8V. I think I wouldn't use it to switch the module power in a radio. Does it have any protection on the gate? A zener diode for example?

João
by jhsa
Wed Jan 27, 2021 8:46 pm
Forum: Other Electronic Projects
Topic: Frsky Hall Effect RPM Sensor ?
Replies: 6
Views: 2577

Re: Frsky Hall Effect RPM Sensor ?

A few years ago I have built an oXs (OpenXsensor) with RPM sensor. You need an Hall effect switch and a couple magnets. I think you can tell the code how many magnets you have installed. And I actually never finished this project 100%. It consists of a Battery backup system, the RPM sensor, an onboa...
by jhsa
Tue Jan 26, 2021 2:58 pm
Forum: Software
Topic: Flashing a M128 on stock 9X motherboard
Replies: 20
Views: 1990

Re: Flashing a M128 on stock 9X motherboard

well done :)

João
by jhsa
Tue Jan 26, 2021 2:56 pm
Forum: Turnigy 9XR PRO radio
Topic: Adding Bluetooth module
Replies: 266
Views: 83636

Re: Adding Bluetooth module

On the older 9XR, as far as I know it will not work. The same for the 9x radio with stock board.

João
by jhsa
Mon Jan 25, 2021 11:37 pm
Forum: openTx
Topic: Open TX Companion writing models - flashing done with errors
Replies: 10
Views: 1004

Re: Open TX Companion writing models - flashing done with errors

I believe OpenTX no longer develops for the 9XR-PRO radio, and actually the current versions have problems that were never fixed. Please someone correct me if I am wrong.
I recommend using ErskyTX that is still being developed for this radio.

João
by jhsa
Tue Jan 12, 2021 9:14 pm
Forum: Software
Topic: Flashing a M128 on stock 9X motherboard
Replies: 20
Views: 1990

Re: Flashing a M128 on stock 9X motherboard

You were lucky. That little thin wire could have killed your processor. It wouldn't be the first, nor the last one :) :mrgreen:

João
by jhsa
Mon Jan 11, 2021 9:30 pm
Forum: Software
Topic: Flashing a M128 on stock 9X motherboard
Replies: 20
Views: 1990

Re: Flashing a M128 on stock 9X motherboard

You probably need to slow the programming clock down, this is done by adding -B 10 to the AVRDUDE command. In eepe, go to the Burn|Configure menu and put -B 10 in the extra arguments field. Also, I recommend going in to the Burn menu and selecting "Set Fuses to Protect EEPROM", otherwise the the EE...
by jhsa
Mon Jan 11, 2021 3:06 pm
Forum: General help (FrSky Taranis radio)
Topic: help i biked my x7
Replies: 5
Views: 693

Re: help i biked my x7

I have one here from a friend that failed in a similar way as yours. it was powered by a 2S battery.
Not a very good design I guess :(

João
by jhsa
Mon Jan 11, 2021 3:02 pm
Forum: Software
Topic: Flashing a M128 on stock 9X motherboard
Replies: 20
Views: 1990

Re: Flashing a M128 on stock 9X motherboard

Yes, the m2561 and Er9x is the way to go. It even supports the MultiProtocol module. and as it seems you are comfortable with electronics, you could even build a voice module for the radio. Er9x even supports adding a couple more switches and/or changing a 2 position switch to 3 position. It is very...
by jhsa
Sun Jan 10, 2021 12:35 am
Forum: General help (FrSky Taranis radio)
Topic: help i biked my x7
Replies: 5
Views: 693

Re: help i biked my x7

Another one bites the dust. These radios seem to be really bad. :(

João

Go to advanced search