To measure the current we need a opamp .
I'm trying to find one that is not $1.50 in a mini package.
I will look at encoder inputs.... These are for a shaft encoder ....
I didn't think a high speed interface was needed ....but If I can , I will hook in.
-Brent
Search found 748 matches
- Thu Jan 05, 2012 5:19 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
- Thu Jan 05, 2012 1:32 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
Here is what I can do...
I will add a 32khz xtal to port pins.
Move trim switches to two of the EX1, EX3 port pins.
Free up EX2 for A/D use. Add a ground Sense resistor.
Move the input cap/resistors over to the Digital output connector., for Rotary encoder / external switches.....
-Brent
I will add a 32khz xtal to port pins.
Move trim switches to two of the EX1, EX3 port pins.
Free up EX2 for A/D use. Add a ground Sense resistor.
Move the input cap/resistors over to the Digital output connector., for Rotary encoder / external switches.....
-Brent
- Thu Jan 05, 2012 11:40 am
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
People asked for SD-card support. The first design just has a spot for a connector to access the SD -Card in SPI mode. The Rev B, has a spot for a Micro-SD socket , and full 4 bit data line support. There is no current use for the card...it is for future expansion. It could hold "models" o...
- Wed Jan 04, 2012 11:27 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKY9x Potential Logos
- Replies: 64
- Views: 34140
Re: ERSKY9x Potential Logos
Nice Stuff
Now I'll never be able to pick one.
-Brent
Now I'll never be able to pick one.
-Brent
- Wed Jan 04, 2012 11:25 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
The Smoking Resistor tells you something is wrong . :shock: Also lets you measure the current draw.... I have put a couple of through hole pads next to the part , so it is easy to short / replace. The other thing is the Fuse cost , is about $0.30 compared to $0.001 for the resistor. It all starts to...
- Wed Jan 04, 2012 7:00 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKY9x Potential Logos
- Replies: 64
- Views: 34140
Re: ERSKY9x Questions
How About these?
-Brent
-Brent
- Tue Jan 03, 2012 8:30 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
No its not , the ribbon cable has the contacts facing the other way.hdwf900 wrote:Maybe that had been already discussed and I missed it but can you tell me if the Optex display is compatible with the original eEX9 board?
Sylvain.
-Brent
- Tue Jan 03, 2012 7:32 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
How about just putting the 32kHz xtal on the relevant CPU pins, then the internal RTC could be turned on. Handling the power so the CPU could be put into deepsleep mode (3uA) and keep the RTC running may be a challenge if required though. Mike. It would worK ... If I use a through hole xtal..... an...
- Tue Jan 03, 2012 6:49 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
Please no chip with built in battery (except it has a pin for an external battery).
I had to throw away a motherboard, because the built in battery of the RTC chip was exhausted.
Reinhard[/quote]
Don't worry , no on-board battery .
-Brent
I had to throw away a motherboard, because the built in battery of the RTC chip was exhausted.
Reinhard[/quote]
Don't worry , no on-board battery .
-Brent
- Tue Jan 03, 2012 6:34 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
If the Tx can run normally without RTC and most things wouldn't need it, and if you can setup the board so the addition of an RTC module is relatively easy, then it becomes the choice of the end user to add or not, which I think ties in with the whole idea of what we are doing here. Bill Yes , ther...
- Tue Jan 03, 2012 6:31 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
How about just putting the 32kHz xtal on the relevant CPU pins, then the internal RTC could be turned on. Handling the power so the CPU could be put into deepsleep mode (3uA) and keep the RTC running may be a challenge if required though. Mike. It would worK ... If I use a through hole xtal..... an...
- Tue Jan 03, 2012 5:30 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
If you are using the main tx battery to power the RTC, then you run the risk of discharging a LIPO too low if the tx is not charged for a long time, same as leakage for a power switch. Vbat to the RTC is specified as max of 5.5V, are you supplying the full battery voltage? Would a supercap be usefu...
- Tue Jan 03, 2012 3:45 pm
- Forum: Hardware Mods
- Topic: Extension Lead - TX Back To Main Board
- Replies: 4
- Views: 4705
Re: Extension Lead - TX Back To Main Board
I'll come up with a drawing , and the part numbers...
-Brent
-Brent
- Tue Jan 03, 2012 3:40 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
I did look at using the Bridge... If I drop the RTC chip , I have room for a Schottky 1A Bridge...Losses would be fairly low. The battery would plug into the Bridge and this could supply power to the whole Radio. It might be a better solution. The RTC chip needs a battery backup ..witch is the inter...
- Mon Jan 02, 2012 10:13 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
- Mon Jan 02, 2012 9:45 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
Yes , you could use the I2C interface and a 4 line touch panel IC , The problem I see, is the size of the Screen , and the size of your fingers. Do not make for too many buttons... There is a input connector on the board that can handle 3 extra switches. This could be a Rotary encoder , with a push ...
- Mon Jan 02, 2012 8:22 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
looks good, does the time response of this screen is better than in the stock radio? i had a jr 3810, and the pixel response was superb compared with the 9x one. Lets just take a look for example when moving the stick in the graph menu of dual rates and expo, its so slow that almost looks an invisi...
- Mon Jan 02, 2012 8:05 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
The Bluetooth module needs to have a serial input/output , and must support SSP (simple serial protocol)
-Brent
-Brent
- Mon Jan 02, 2012 3:44 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
Here is what the LCD looks like.
-Brent
-Brent
- Mon Jan 02, 2012 1:38 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
The Dropout on the Regulators is 1.4V max. The 5V regulator is for the LED Backlight , to keep a constant brightness. The rest of the board runs at 3.3V The RF module will dictate the minimum supply voltage. As Mike said the Board is quite happy at 6.5V , so you could get a full cycle out of a 2S li...
- Sat Dec 31, 2011 10:05 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKY9X Coding
- Replies: 4540
- Views: 1990846
Re: ERSKY9X Coding
I have access to both sides of the power switch on the PCB , we could use a transistor to allow the micro to hold the power ON
until you are ready for shutdown.
-Brent
until you are ready for shutdown.
-Brent
- Sat Dec 31, 2011 9:42 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
@ Skynorth , Is it possible that this cheapie bluetooth module will do? http://www.ebay.com/itm/30ft-3-3VDC-Wireless-Bluetooth-RF-Transceiver-Module-RS232-TTL-/360418062721?pt=LH_DefaultDomain_0&hash=item53ea973181 Best regards , Hasse. The module looks close...but I dont think it is pin compat...
- Sat Dec 31, 2011 9:37 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
We are currently doing a Beta run of 25 boards , there are a couple left ...price will be $85 + shipping.RCPlaneHobby.com wrote:is there a link to this board on the wiki yet? I'd love to see a feature list and price
I will write up a Spec sheet on the new board...
-Brent
- Sat Dec 31, 2011 9:34 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
The board is being sold assembled ...for $85.Mechcondrid wrote:how much is everything to source? (i.e. all the parts needed?)
-Brent
- Sat Dec 31, 2011 9:30 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
This might seem like a no brainer but does the board have reverse polarity protection? I was just changing my batt in mine today and that occured to me. I think other things might get fried but is the board protected? Also when I get back I'll post a pic of the ErSky 9X logo I came up with. I spent...
- Wed Dec 28, 2011 7:10 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
There is a spot on the board for a 16 pin (0.05") ribbon cable. This contains all the LCD signals , plus a extra chip select signal. So you could tie into this and drive a larger LCD or two lcds. There is also a I2C port , which could also tie into some LCD displays. The Hardware can do this , ...
- Tue Dec 27, 2011 11:54 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
Re: ERSKY9x Questions
The Lcd ribbon fits into a connector on the board....just like the stock one.. The module needs to be taken apart . The LCD glass is double sided taped into LED backlight. The Plastic frame is keeping the LCD from sitting up high enough in the Display window on the radio. The Glass fits in place , l...
- Tue Dec 27, 2011 1:09 pm
- Forum: erskyTx (was ersky9x)
- Topic: ERSKYTx (was ersky9x) Questions
- Replies: 2347
- Views: 1362687
ERSKYTx (was ersky9x) Questions
Hi, We can use this area to talk about the new board design. -Brent Here is a Feature List: input voltage 6.5 - 16 volts (7.2V ideal) Atmel SAM3S ARM Cortex M3 Microprocessor 256K of Eprom , 48K Ram 4mb EEprom - For Model /sound storage Support for Optrex display F-55472GNFJ-SLW-AAN Built-in externa...