RC Model Reviews

Here is the the new printed circuit board or PCB to be used with the 9x (FS-TH9X),
i just installed the ER9X with the smartieparts board

SmartieParts board : http://www.smartieparts.com/shop/index. ... e90330d381
& i would like to have external
impressions on the ERSKY9X Hardware & Firmware.


Here is the Rev B1 version of the ERSKY9x board.
It uses a larger TO220 style 3.3V regulator , to allow for better heat dissipation
when using 3S lipos .

It is designed to replace the main control board in the 9x radio.

It runs a new version of the ER9x and Open9x software.
Developed for the ARM microprocessor

It has a SAM3S ARM microprocessor , with 256K Eprom , 48K Ram
and adjustable clock up to 64Mhz

4Mb SPI EEPROM for model storage.
Each model has 4K of storage space
So there is room for around 40 models , before using the Mini SD card.

Upgrade socket for better quality , easier to read LCD

DAC sound support with digital volume control
and 3/4Watt audio amp , with 8 ohm speaker and headphone jack output.

2.5mm stereo jack for external access of COM ports.

3.5mm headphone jack , with auto speaker cutoff.

Built in USB port for program upgrades , and computer access

High speed Micro SD card socket , for model and sound storage , telemetry logging?

Third Serial Com Port , for RN-42 Bluetooth module hookup.

Easy hookup for telemetry with built in RS232 converters

Haptic output connector.

Dimmable On/Off LED backlight control

External input for Rotary encoder.

External I2C port , will allow for addition on second LCD display (100x160x16)

ATtiny167 AVR Co-processor - provides 12 inputs/outputs.
For example ... 4 more A/D channels , 2 rotary encoders and Two , 3 way switches.
Can also be set up to act as RTC (Real Time Clock) with battery backup.

5volt power output

Current sensor monitors current draw from the battery , and stores Battery usage.

Soft power-off circuit , makes sure that the radio has saved all settings before
powering off.

The Board will sell for $95 and come with a small 8 ohm speaker and wire harness.

it keeps being upgraded just like the firmware giving it endless possibilities.


ERSKY9X :http://9xforums.com/forum/viewtopic.php?f=7&t=525

Looks cool -- how come you stuck with a linear regulator instead of a switched-mode one?

Is it a low-dropout reg -- so that a 2S LiFePO4 battery can be used -- that'd be really nice.

Good question Professor Bruce i will ask the builders, the guys from 9xForumz.

Here is the user final product link, it comes with a 5V regulator.

http://www.ersky9x.net/

Last update :

Re: Why a linear regulator?
by SkyNorth » Tue May 22, 2012 3:21 pm

Yes, it is uses Low dropout 3.3V Linear regulator.

There was no room for a switching regulator , unless I went to module type ...
These cost between $5 and $15 each and still there was no drop in part available.

Also because of noise , you would need to use a 5V switching regulator , and feed it to the 3.3V linear regulator.

-Brent

Rev B1?!?!? I still have the original beta board sitting somewhere on the bench... I've just not had time to install it yet...<sigh>.

Oh well....

Regards

Kaptain "So many projects, so little time" Zero

kaptain_zero wrote:Rev B1?!?!? I still have the original beta board sitting somewhere on the bench... I've just not had time to install it yet...<sigh>.

The Rev B1 is the Beta board (Beta 1!). There was an early prototype board, but only 5 were made. All other boards are the B1.

josheppaul wrote:I am working in electrical project and I have daily seen these kind of circuit board. I am little confused to understood that because it is looking different, so would you like to say me that what kind of stuffs circuit board that is? It is an important to know for me.

I'm not sure I understand your question.

This board is VERY much more powerful than the stock board, but it is taking time to program all the wonderful things it can do.

Mike.

Hi,
I designed (along with Mikeb) the ERSKY9x board.

Re: "Is it a low-dropout reg -- so that a 2S LiFePO4 battery can be used -- that'd be really nice"

The board runs at 3.3V , the low drop-out regulator , is at worst case a 1V drop , so anything over 4.5V
would be good for it , but some of the RF modules want about 5.6 to 6V to be happy.
There is also a 5V low drop-out regulator for the LED backlight , and for user stuff...

The board now comes with a TO220 style 3.3V regulator , as some people insist on using a 3s Lipo (12.6V)
to power the radio....using it allows for a small heat sink to be added to help with the extra heat from the excessive
input voltage.

The 2S Life would be ideal I think ....they are 6.6V ?

-Brent

Mikeb wrote:

kaptain_zero wrote:Rev B1?!?!? I still have the original beta board sitting somewhere on the bench... I've just not had time to install it yet...<sigh>.

The Rev B1 is the Beta board (Beta 1!). There was an early prototype board, but only 5 were made. All other boards are the B1.

I stand.... OK, sit.... corrected. Sorry, I've had precious little time to follow the development of this board, and even less time to dedicate to installing it.

Regards

Christian

The circuit board is made of 1oz copper ,FR1 material , and Gold platted for a level finish.
-Brent

Ok!! I want one!! Do you take kids on trade When will it be ready forsale?


Thanks in Advance
Jeff