openrcforums

It showed up on HKs web site for a couple hours , then was removed...I would expect it yo yo on sale next week

But then again ...what do I know ...just look at the thread title

If you Pic it , it will never heal

Good to hear it worked .... On the simulator , it would not work with under 10V.
The cap is a good Idea , to stop and noise spikes from triggering the SCR.
R2 should also be reduced to 100R as 2K might be too high a resistance in the PPM signal path...

I have found a problem with my design .... It wont work at 5V.
The 5V supply in not enough to trigger and get enough holding current flowing to latch the SCR.
Sorry about that ...

From a reliability point : I'll stand by my circuit ....3 transistors (2 are in SCR) will be more reliable than your Micro (thousands of transistors) and software which must execute. The Armed status is shown on the LED , On power up the PPM signal line is held low....Unless the SCR is triggered , t...

[quote="jhsa"]Don't forget that with only the switch you won't be protected next time you power the plane on if you forget to disarm the esc ( flick the switch) after flight. In fact that could be even more dangerous as you might think you are protected but you aren't. For 100% protection ...

Adding a push button across the scr , would allow you to disarm it.

Yes , once the scr is latched , you would need to remove the power, to reset it.

How about something like this?
-Brent

You might want to check out
http://www.rcgroups.com/forums/showthread.php?t=2117797

So with adding scalers it allows for you to calibrate inputs for Y = mx + b?

Rob Thomson wrote:Have you tried any of the fixes in this thread?

My buzz is long gone. But end millage varies per user.

It does not affect anything else. No need go worry in that regard.

Sent from my GT-I9300 using Tapatalk

Maybe you should drink more beer ....to keep the buzz going!

I still have some in stock , email me...

-Brent

There has been some success, using a 1000uF cap near the amplifiers 3.3V supply and gnd

Looks Nice,
I wonder if Tray flying is related to you guys driving on the wrong side of the road?
Seems more popular on your side of the pond...

The 9XR Pros we are testing , have the Haptic installed as standard.
That's the model they are all referring to.
Its a nice feature ....

There are Pro units in production currently
Chinese New Year next week will not help speed things up...

It would be easier just to cut the header off the board (leave enough pin to grab with pliers or tweezers)
Now just heat each pin and and use tweezers to remove.

-Brent

Mike , does that mean , the USB port can now be used as a HID ? Maybe a direct link into simulators?

Check Out what Intel is showing at CES.
http://www.intel.com/content/www/us/en/ ... dison.html
400Mhz Dual core processor with Bluetooth and WiFI

Got any Ideas for it?

-Brent

Use Option B

-Brent

A x10 probe would be good for logic levels (5V) ( a 5V input would be reduced to 0.5V ) You could make up BNC to 1/8" male plug adapter , or just cut off the BNC and solder on the 1/8" plug directly Here is a cheap source for scope probes , they have ggod prices on small toggle switches. h...

You could also use the PCs internal sound card for a simple scope
http://www.zeitnitz.de/Christian/scope_en

The key is to use a pair of resistors as a voltage divider , to scale the input so that you keep the Microphone input below 1V

-Brent

LA County Fire Dept , is going to love you......

There is a spare pin in the left / right side connectors. On one side a spare A/D is connected , this input is biased at 1/2 VCC , so it supports a direct connection to a 3 way switch . You could also hook up a multi position switch for flight mode selection ... The connector on the other side , has...

Have you thought about using a INA219 current / Voltage sensor?
This would add $2.50 to the cost , but allow for direct voltage measurement up to 26V
and with a current shunt you can measure the Amp draw from the battery.

-Brent

The color of the wires is not important

The 4 pin connector is upside down on your RF module , the two wires beside each other go to the RXD,TXD connections,
The one separated by the open pin (white) is the Ground , and should be at the bottom

-Brent

The amount of work involved in testing each board for full and proper operation is daunting....even with some automated testing , you still need to check the USB and SD card operation, sound output , RTC , soft power operation ....both types of LCDs , key switches. To get real price breaks on the pa...

The 9XR Pro users will need eepskye , to program the new radio.
-Brent

The 9XR Pro can use more different RF modules that a 9x can. Most 9x users are not hackers .....hence smack has sold over 7000 programmer boards ...... Most people just want to buy a radio that has the features ready to go ... hence the 9XD (Taranis) popularity It set a new price / feature point for...