Skip to main content

Turning a TP-LINK TL-MR3020 into an Audio player, stream player etc... you name it..

Its been a while i have been messing with TP-LINK TL-MR3020 router. Before with couple of modifications to hardware and software i made a temperature monitor with room light controller via a custom web interface. If you view below links you will have an idea.
http://pixelatedpic.blogspot.com/2013/01/openwrt-on-tl-mr3020-controlling-arduino.html
http://pixelatedpic.blogspot.com/2013/04/openwrt-on-tl-mr3020-controlling.html

This time i flush the TL-MR3020 with Openwrt. After couple of usb packages and audio packages i just plug in the USB sound card (which was given by whoknowz - https://www.facebook.com/nashith) to the router.

When the USB sound card is detected from the linux, you can check by command dmesg. Then install the madplay or any player you prefer.
I installed madplay because it play audio streams and play local files.
For test i played the audio stream from atoll radio and it works great. Just ssh the router and pass this command
wget -o - http://radioatoll.serverroom.us:7088/ | madplay -




Locally played an 1KHz tone to test the audio played locally. madplay 440Hz_44100Hz_16bit_05sec.mp3
when this command passes the mp3 file starts to play. :)


These applications can be used to make many useful gadgets.


Opensource rocks...\::/

Post a Comment

Popular posts from this blog

SIMCOM SIM900A fixed

Since everyone is interested in this post and lots of request comes to get the firmware, i have put a link so that everyone can download it easily. SIMCOM 900A firmware

Its been a while that i was trying to fix the SIM900A GSM module. This module support local GSM band but after some researches it was concluded that it is carrier locked :(. After long conversion of days to actual chip manufacture SIMCOM, they told it can be fixed by updating its firmware to latest original version but unfortunately they don't provide firmware to small parties.

I never stop trying to get the firmware and SIMCOM again replied, this time they said contact local SIMCOM supplier and request for firmware. But this little Maldives don't have SIMCOM or any electronics manufacturer. So i contacted my friend coody from NOA LABS/Smart prototyping (a friend in china) and told him to help me. I explained him what to do so he can communicate with SIMCOM in china.

Finally he sends and email saying that he g…

Clover Display M302 hack

Its been a while i have this LCD and today i thought of connecting the LCD display to Arduino. Unfortunately i could not found any pin outs of this from any where and from the manufacture. Actually this is very old model which i got from old FAX machine and this display is a very cheap from online sources.
Clover Display M302 PCB Ver 1.0 (16x2) which has 10 pin flat cable. After researching for a while from the internet i have seen in many forums people are asking for help on how to connect it and what is the pin configurations? so i thought of helping them as well as my self at the same time.
After going through some of my old collections of Russian data of displays and things i found a basic diagram of how 10 pin LCD display configuration. 
PIN1   - VSS PIN2   - VDD PIN3   - CONTRAST PIN4   - RS PIN5   - R/W PIN6   - ENABLE PIN7   - DB4 PIN8   - DB5 PIN9   - DB6 PIN10 - DB7
I tried these configurations and wired up to the arduino with the LCD sketch and it worked on the first try. …

TCP communication from NEOWAY M590E- Successful

Some of the GSM/GPRS chips do not support HTTP services and since the modems are controlled via AT commands, the AT command sets are very limited to HTTP commands in NEOWAY M590E.

The only option to communicate with any cloud based or locally hosted server was using TCP protocol. I have used HTTP services in many of my projects and experiments, it is easy and with few lines of code can manage an HTTP requests. For weeks i have been struggling with TCP request and every time it fails to connect or sometimes data is sent but from server side there is no new data fetched.

Basically TCP is transport layer in OSI model and HTTP is in application layer. TCP will do a socket based connection to servers predefined port. For example  test.com:8989. what i mean is it needs a listener to listen to port that you define or open to use.

After weeks of reading articles and AT command sets thoroughly, finally i managed to handle a TCP request from modem. But still it fails sometimes or unable to conn…