hello everyone i have question or maybe an idea for a talented dev i was wondering if it is possible to emulate a key fob (for a car alarm) using a windows mobile phone
Not the standard 433MHz transmitter.
But it would be possible to achieve similar with Bluetooth. Then you have to integrate a bluetooth receiver into your car alarm. Using serial communication you would then transmit lock/unlock commands. It would also be possible to auto-pair when in range and unlock the car automatically.
Slowmo said:
Not the standard 433MHz transmitter.
But it would be possible to achieve similar with Bluetooth. Then you have to integrate a bluetooth receiver into your car alarm. Using serial communication you would then transmit lock/unlock commands. It would also be possible to auto-pair when in range and unlock the car automatically.
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Click to collapse
All thing are very "Techi" to me but if it possible then its defiantly proud to be WM user.
Anyway is it working with any other handsets...?
The Chevy Volt is suppossed to have an iPhone and BlackBerry app that will allow that, so yes its definitely possible. But their sollution may rely on 3G connectivity on both ends, I'm not sure.
" But their sollution may rely on 3G connectivity on both ends, I'm not sure."
if that is the case then the car would have to have a sim card too
otherwise you don't get a 3g connection more likely it's wifi based
In theory, you could use one of the phones with a USB port, with an adapter to 433 MHz to read in the pairing, then re-pair with a car.
But directly pair with a standard car-fob arrangement without additional hardware, no.
I cant program, simply to dumb to learn it, but i had a idea that i think is worth spreading
Use the audio output jack, connected to a IR diode and write a app that uses audio bursts to control a ir reciever (tv, stereo and so on).
I dont know enough about the ir diodes to be able to tell how it should be wired together, but i figure a simple stereo plug, a resistor or two and a diode on top should suffice, and make the ir pulse by the audio signal pulses.
the audio output should be fast enough to transmit directly to the diode, if the voltage and signal strength is within ir specs.
So what do you (more tech skilled) guys think?
is it possible?
my android phone (htc hero) can do everything exept brew a decent cup of coffe and remote control my home media center, exept my xbox media center over wlan.
So a ir remote solution is the single most wanted feature that i dont have..
i figure my coffe maker is good enough for the time being..
edit..
i found a proof of concept, someone actually made this and got it to work on old nokia phones using a wav sound file, that he sampled using audio input on his computer.
http://jumpjack.wordpress.com/2008/06/10/turn-your-phone-into-an-universal-remote-control/
i would suggest that a ir sensor should be involved in the hardware, so the end user can program the buttons himself in the app.
Anyone know if there is an App that allows you to transmit at a frequency that can be picked up by your car radio?
That is hardware specific, nothing to do with software if the hardware doesn't support it.
As I am a new user I can't post on specific thread so I post here my test
I installed Spirit PAK ver 01 07 and after turn on all device in my Nexus S I tried apk
Here some photos of test with stock ROM 2.3.4
It can be useful for developmetn ....
http :// imageshack.us/photo/my-images/27/dscf0009hc.jpg/
http :// imageshack.us/photo/my-images/18/dscf0011js.jpg/
http :// imageshack.us/photo/my-images/825/dscf0012su.jpg/
result : Signal are instable and no sound (
If can I help in some other way ....
The technical is in the next post.
Thanks for posting publicly. I prefer open discussion so that everyone can benefit and contribute.
I created my main thread in a forum dedicated to discussing apps, but didn't realise it was under a dev forum and thus users with less than 10 posts couldn't post. I wonder if I should create a 2nd thread...
You can't post full URLs either so here they are:
http://imageshack.us/photo/my-images/27/dscf0009hc.jpg/
http://imageshack.us/photo/my-images/18/dscf0011js.jpg/
http://imageshack.us/photo/my-images/825/dscf0012su.jpg/
BTW, screenshots are great !
The short answer is I don't think the Nexus S is capable of receiving or transmitting FM, but I would never say never without hard proof.
I've been asked a few times over the last several months, and if I recall correctly, every time I've Googled the issue I found no evidence that anyone has EVER made FM work on the Nexus S.
I think my app is probably the closest it will get. It WILL manipulate the FM registers over HCI and it will look like it works, to some extent. But no audio, not even static, will be heard.
And there will be no indications of reception, like a more or less steady RSSI reading on strong channels, and RDS data.
Samsung manufactured this phone, and it seems to be a derivative of the Galaxy S. The Galaxy S, like the Nexus S, has an FM/BT/WiFi combo chip from Broadcom. The stock Galaxy S supports FM, but via a dedicated Silicon Labs FM chip, which the Nexus S does not seem to have. (BTW, the FmTwoO app also works on Galaxy S.)
AFAICT it's not possible to use the Broadcom chip for FM on the Nexus S. The antenna and audio connections are to the Silicon Labs chip and not to the matching pins on the Broadcom chip. If the Nexus S PCB/circuitry is reasonably similar to the Galaxy S, then it probably won't work on the Nexus S either.
There are two Samsung devices that I've been trying to help owners get FM working on. that have a Broadcom chip, but no other chip. Thus far we've had no success with either the Galaxy Tab, or the Spica i5700. There are two problems:
(1) The RSSI signal strength shows strange values and may jump around. I think this is due to no antenna connection and/or some FM RF power pins may not be connected.
(2) No analog audio output has been achieved, not even static, despite trying the 8 or so Audio Methods my app currently supports, and ALSA as well.
(2) might be fixable if I ever achieve digital audio transfer or even direct audio to BT headsets within the chip.
But (1) might only be fixable with much investigation and soldering etc.
Sorry... I'd love to find out I'm wrong about this.
Other info for BCM4329 chip :
http :// www . datasheetdir.com/BCM4329+download
in these datasheet we can read
Code:
Host Interface support
- Host Controller Interface (HCI): High-speed UART
-Audio: PCM
- FM Control: HCI and BSC (I2C-compliant) ports
- FM Audio: Stereo analog input and output, bidirectional
I2S, and PCM ports
In schematic we can notice BT and wifi use same ant , FM has dedicated one ....
But SPI / I2C / I2s are the same of BT and WIFI so it's possible to comunicate with FM part in chip with no problem ....
Code:
FMHost Interface: High-speed UART, I2C for control
.....
if not mistaken spirit apk use only HCI .... not I2C !
magicko said:
Code:
FMHost Interface: High-speed UART, I2C for control
.....
if not mistaken spirit apk use only HCI .... not I2C !
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All devices that uses the combo chip for Bluetooth support the HCI UART interface. That can be accessed via the BT stack or directly by reasonably standard and common methods.
I don't know what fraction of devices can use the other interface, but some don't. I believe the Galaxy Tab schematic showed a digital connection to the Wolfson audio chip...
The next issue would be accessing the interface, and I think that would require a device driver. If I wanted to support multiple devices and kernels by this method I'd have to create multiple device drivers.
So even if possible, I think the work required would be excessive.
But if somebody can figure this out, I'd be happy to hear about it.
EDIT: A digital audio connection MAY not be as hard as I envision, at least for some devices.
IF the ROM supports a digital / "SCO" connection to the chip, it might be possible to call an audio API to set this up.
I haven't worked with these SCO connections yet, so I don't know how easy or feasible it is, but I'll try to find out.
Hi mikereidis, I don't want flooding to be able write on developers section, as well be superfluous create a new topic on the DroidX tree so I would write here...
I tried the latest SpiritFM version on DroidX CM7. Several times I was able tune to the pre-programmed frequency and receive audio using FM_launch method. In most cases, I only get noise. To get the sound the speaker/headphones button should on and then off. Without such manipulation sound does not appear.
The big problem is that your program give low radio sensitivity. This is not a hardware problem because stock FM program allows 15 radiostations on the my area.
I also tried FM_launch2 but without success.
Here is the catlog with FM_launch, and then FM_launch2. I'm also ready to provide any logs or make any test if it helps you improve SpiritFM for Motorola phones.
evgenln said:
Hi mikereidis, I don't want flooding to be able write on developers section, as well be superfluous create a new topic on the DroidX tree so I would write here...
I tried the latest SpiritFM version on DroidX CM7. Several times I was able tune to the pre-programmed frequency and receive audio using FM_launch method. In most cases, I only get noise. To get the sound the speaker/headphones button should on and then off. Without such manipulation sound does not appear.
The big problem is that your program give low radio sensitivity. This is not a hardware problem because stock FM program allows 15 radiostations on the my area.
I also tried FM_launch2 but without success.
Here is the catlog with FM_launch, and then FM_launch2. I'm also ready to provide any logs or make any test if it helps you improve SpiritFM for Motorola phones.
Click to expand...
Click to collapse
Thanks for the log evgenln. I'll let you know what I find.
Some other people have enabled audio by toggling speaker/headset. It would be a hack, but perhaps I can create an option that toggles it automatically. But it would be better if I figure out what's happening, and fix it right.
Regarding signal strength: My guess would be that there is a function call required to enable the FM antenna, and that you are receiving without an antenna. I'll try to find out.
But since the headphone cable is the antenna, it's possible this is related to audio issues.
evgenln said:
I tried the latest SpiritFM version on DroidX CM7. Several times I was able tune to the pre-programmed frequency and receive audio using FM_launch method. In most cases, I only get noise.
Click to expand...
Click to collapse
It appears something has broken horribly for Texas Instruments FM chips. I can confirm the same errors you are having on my HTC Legend.
I can trigger the errors when I switch headset to speaker, and I'm not sure why yet.
Most phones have Broadcom chips, but I still don't understand why I haven't seen this problem before; it seems to go back at least a month.
Regardless, I've found a workaround that I hope will also work for you. If you deny SuperUser privileges to the app it will use hcitool instead of the daemon. It will consume more CPU/power when RDS is working and the screen is on though.
So, open the SuperUser app and select Spirit FM Radio and press Forget.
Then restart the app and when SuperUser asks for permission, select Deny and Remember.
Let me know, thanks !
I will determine the root cause and a fix.
Here's a preferable workaround for TI chip devices (and reason I wasn't seeing this issue).
This operation is useful for Broadcom based devices on CyanogenMod also because CM tries to use hcitool to set FM volume, so this can avoid some interference:
Remove or rename the hcitool binary. During audio switching, CyanogenMod (and likely some derivative ROMs) calls hcitool for some reason. This causes problems in the daemon mode.
The downside to this is that the CM FM app won't work.
I do this:
adb remount
adb shell mv /system/xbin/hcitool /system/xbin/hcitoo
My app can still use "hcitoo" if needed.
mikereidis said:
I do this:
adb remount
adb shell mv /system/xbin/hcitool /system/xbin/hcitoo
Click to expand...
Click to collapse
I tried this but without success. Still have on and then off the speaker/headphones button to get the sound.
In the attached files logs for the stock FM applications running on stock moto 2.2 and for the current SpiritFM on CM7.
evgenln said:
I tried this but without success. Still have on and then off the speaker/headphones button to get the sound.
In the attached files logs for the stock FM applications running on stock moto 2.2 and for the current SpiritFM on CM7.
Click to expand...
Click to collapse
OK thanks, I'm looking now.
To respond to your PM about Regional Band Russia frequency steps, it works OK for me as 100 KHz.
It's harder to see now though because the frequency up and down buttons have been removed in favor of the graphic thumbwheel. If you carefully nudge the thumbwheel you can see frequency move 0.1 MHz at a time, while for North America it's 0.2 MHz and odd frequencies.
The frequency step for seek might have a problem; it's done by the chip and there may be a problem there.
evgenln said:
I tried this but without success. Still have on and then off the speaker/headphones button to get the sound.
In the attached files logs for the stock FM applications running on stock moto 2.2 and for the current SpiritFM on CM7.
Click to expand...
Click to collapse
I've started a new thread here that should work for people with less than 10 posts: http://forum.xda-developers.com/showthread.php?p=15607830
Technically it's in a paid app forum and it's technically for the paid Unlocker (converts free app to paid app), but unless some moderator decides it's a really bad idea it's open for discussion of the free app also.
I'm not sure if this is possible, but I thought you guys were the best people to ask!
I've got a projector screen with an IR receiver, but no remote with it. I was wondering if there was a way to use the IR blaster on my phone to fast cycle through IR commands/frequencies and see if I can control my screen.
I've tried numerous IR apps, and they all rely on you selecting the correct make/model of your device (none of them have projector screens) or to copy the original remote (which I don't have).
Is there anything I can do using my Android phone? :fingers-crossed: