Using our mic adapter for the Garmin Virb USB port

We have made a mic input adapter/connector for the GoPro camera’s USB port.  With a small modification, this can be used for the Garmin Virb USB port for power input, audio out and audio/mic in.

You can buy the connector here.

The connector looks like this:

In the bottom picture you see a resistor mounted.  By mounting a 2,2k resistor there, the connector will be identified to the Garmin and the pads will be as shown in the picture above.

You don’t need to remove the existing resistor, but can just mount the 2,2k resistor over the existing one.  The mounted resistor is 330k, so if you mount a 2,2k resistor over it, it will result in a 2,185k which is less than 1% from the target value (and very few resistors have that precision anyhow).

If you prefer to use a standard hole mounted resistor instead of a tiny surface mounted resistor, you can easily mount a larger resistor between the GND pad and pin 4 at the connector.

I have not tested this myself, but according to the documentation, this should work.

 

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10-pin mini USB pinout on FLIR

The 10 pin mini USB connector can be purchased at http://www.chargeconverter.com/store/index.php?route=product/product&product_id=160

or with a pre-soldered PCB at http://www.chargeconverter.com/store/usbpcb for easier soldering with large pads for GND, Power and video out.

Here is how we number the pins in this document (note that the numbering here differs from the numbering used in the official FLIR documents).

10 pin mini USB pinout

10 pin mini USB pinout

  1. +5V
  2. USB data-
  3. USB data+
  4. not connected
  5. GND
  6. not connected
  7. not connected
  8. Video GND
  9. Video out
  10. not connected

FLIR is a registered trademark of FLIR Systems, Inc.

 

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Making a microphone input and/or power input cable for the GoPro

Do you want to connect your GoPro Hero3/4 to external audio input and/or +5V DC power input?  Our new 10 pin mini USB connector with integrated PCB makes this easy.

usbmic3

It has easy soldering pads for audio in 1 and 2 (do not use the pad G).  At the other side of the PCB there are soldering pads for ground and +5V DC power input (the rectangular pad along the short edge is GND and the more squarish PAD at the long edge is PWR).

usbmic1

We also have a similar connector but there the PCB is designed for audio and video output.  To make it easy to see the difference between these, we have made the mic input PCB red.

 

 

You can hear when the external mic is active as it is recording in the left channel only.

 

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Request for a better charger for Sony Xperia Tablet Z

 

 

 

 

Sony Xperia Tablet Z pogo connection

I just got a Sony Xperia Tablet Z (TM) ordered a long time ago.  As you might know the unit is water tight, but that requires that the small covers over the ports are correctly seated.  To charge the unit you have to remove the micro USB cover and plug in the charger.  It is only to be expected that this cover will be worn out very quickly (and besides it is very inconvenient).

There is a dock that you can insert the tablet into to charge it without removing the micro USB cover, as the dock charge the tablet through 2 pogo pins (spring loaded pins).  However, if you have your tablet in a case it won’t fit the dock, and removing the tablet from the case is probably even more troublesome than removing the micro USB cover.

So I am a little bit surprised that there doesn’t seem to be any alternative charging solution available.  The pogo pins doesn’t seem to have anything that a connector could attach to either.

Anyone out there that has seen any solution to this?  I am thinking of building a wooden dock that would take the Xperia with the cover on and put two pogo pins in the dock to charge the tablet.  But if someone could come up with a cable solution that just attach to the pogo pins it would be the best.

 

Update

I have now built my own charging station.  It cost me around $11.  I bought some pogo pins (spring loaded pins) at an eBay auction (it is for 10, but I only needed 2 really).  Then I bought an easel to support paintings on a table.  I drilled two small holes (around 1,5mm, used a nail to drill as I didn’t have a this thin drill).  Soldered two wires (plus and minus from an USB cable) to the bottom of the pogo pins, put some hot glue on the pogo pins and inserted them into the holes in the easel (plus to the left, GND to the right).

Now I just have to place the Xperia Tablet Z on the easel to charge it and can have the USB cover permanently closed.

charging3

 

charging2

 

charging1

 

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Making a cable between GoPro Hero3 and HobbyKing/Boscam TS351/352/353 video sender

Do you want to connect your GoPro Hero3 to the HobbyKing/Boscam video sender to transfer audio and video?  You can easily build your own cable for this.  We are using the Ridax 10-pin mini USB connector with a small integrated PCB together with the Boscam wire option available in the above link (the cable we make here can be ordered ready made from the above link at US$ 19,98 as well, but if you want to save $10 by some easy soldering, follow this guide).  If you have a wire harness that was included with your transmitter, you can use it as well.

Important note!  These transmitters do not output +5V regulated power so you must not connect the red power wire, or you will burn your GoPro.

Note that these instructions are not valid for the Immersion RC video transmitter.  For description on building a cable for that transmitter see http://chargeconverter.com/blog/?p=154

Carefully check the wire harness you received (regardless of whether you got it from us or together with your transmitter) and make sure that the wire colours corresponds to the colours in the picture and that they are connected to the same pin positions in the transmitter connector.  If you have more wires than black, yellow and white you can either pull/cut them or isolate them.

hobbyking

 

Solder the black, yellow and white wires to the PCB connector as shown in the picture above.

 

Put the connector into cover half with the tabs and arrange it and the wires so the wires exits correctly.

Put the connector into the cover half with tabs and arrange it and the wires so the wires exits correctly.

 

Remove the connector from the cover and put some hot glue (or similar) into the empty cover and put the connector back again.

Remove the connector from the cover and put some hot glue (or similar) into the empty cover and put the connector back again.

 

Put some hot glue over the PCB and the wires to fixate the wires and then close the connector cover.

Put some hot glue over the PCB and the wires to fixate the wires and then close the connector cover.

 

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Making a cable between GoPro Hero3 and ImmersionRC video sender

Do you want to connect your GoPro Hero3 to the ImmersionRC video sender to transfer audio/video and power the GoPro externally through the Immersion?  You can easily build your own cable for this.  We are using the Ridax 10-pin mini USB connector with a small integrated PCB together with the ImmersionRC wire option available in the above link (the cable we make here can be ordered ready made from the above link at US$ 19,98 as well, but if you want to save $10 by some easy soldering, follow this guide).

Important note!  These instructions are only valid for the Immersion RC video transmitter unless you are positive that your device has the same pin configuration and has a +5V DC regulated power output.  Connecting this cable to any other device might burn the devide or your camera.  For instructions on building a cable for the HobbyKing/Boscom TS35x transmitters, see our post at http://chargeconverter.com/blog/?p=175

Here is the connector with the small PCB.  At this side of the PCB you have connections for +5V power and ground.

Here is the connector with the small PCB. At this side of the PCB you have connections for +5V power and ground.

First solder the black ground wire to the PCB to the pad marked GND

First solder the black ground wire to the PCB to the pad marked GND

 

Solder the red power cable to the pad marked with PWR as in the picture above.

Solder the red power cable to the pad marked with PWR as in the picture above.

Turn the connector upside down and solder the white audio cable to the pad marked A.

Turn the connector upside down and solder the white audio cable to the pad marked A.

 

Solder the yellow video wire to the pad marked V.

Solder the yellow video wire to the pad marked V.

Put the connector into cover half with the tabs and arrange it and the wires so the wires exits correctly.

Put the connector into the cover half with tabs and arrange it and the wires so the wires exits correctly.

Remove the connector from the cover and put some hot glue (or similar) into the empty cover and put the connector back again.

Remove the connector from the cover and put some hot glue (or similar) into the empty cover and put the connector back again.

Put some hot glue over the PCB and the wires to fixate the wires and then close the connector cover.

Put some hot glue over the PCB and the wires to fixate the wires and then close the connector cover.

 

Cable between the GoPro Hero3 and ImmersionRC video sender/transmitter

Cable between the GoPro Hero3 and ImmersionRC video sender/transmitter.  If your cable has wires with other colours, just look at the connector to the left to see which wire that corresponds to the colours mentioned in this documentation.

The GoPro outputs mono sound, so sound is only wired to the left channel of the ImmersionRC transmitter.  If you want (the same) sound in both right and left channel you can just bridge (short) the left and right channels with each other.

 

 

 

 

 

 

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10 pin mini USB pinout on GoPro

The 10 pin mini USB connector can be purchased at http://www.chargeconverter.com/store/index.php?route=product/product&product_id=160

or with a pre-soldered PCB at http://www.chargeconverter.com/store/usbpcb for easier soldering.

a connector with pre-soldered PCB for mic/audio input and power input http://www.chargeconverter.com/store/usbmic

Here is how we number the pins in this document.

10 pin mini USB pinout

10 pin mini USB pinout

  1. +5V
  2. USB data-
  3. USB data+
  4. ID (pull low to GND through resistor to activate pin 6-10, 100k for AV out and 330k for mic in).
  5. GND
  6. Mic input?
  7. Mic input?
  8. Video GND
  9. Video out
  10. Audio out

 

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Adding USB ports to Dreambox DM500HD

This document describes how to modify the DM500HD satellite receiver to add USB ports. You can get one external and one internal USB port. This modification is not supported by the satellite receiver manufacturer in any way and you are doing the modification on your own risk. This modification voids your warranty of the receiver.

You buy the USB board and cable at http://www.chargeconverter.com/store/dm500usb .  It is available ready built or as a DIY kit that you solder together yourself.

Remove the screw marked with red in the picture and the corresponding screw at the opposite side.

 

Remove the two screws on the rear, marked with red. Lift the lid carefully (there is one cord going to the lid so the lid can’t be removed completely but enough to put it at the side of the receiver. If you plan to add an external USB port you should remove the metallic parts that covers the three openings marked with blue in the picture above.

To fit the lid with the fan properly, you need to cut away part of the rubber around the USB cable as marked with red in the picture to the right. Be careful to not damage the cable. Attach the USB cable to the rear with the two screws included with the cable.

 

Remove the resistors marked with red to the right. Usually, only one resistor is fitted. If this is the case, you just remove that one. If you don’t have any soldering tool or don’t know how to desolder these small parts, you can usually use a sharp and small screwdriver and just break away the resistors. Make sure the removed resistors are taken out of the box and not floating around inside it.

 

Connect the USB cable to the USB board as show in the picture to the right. It is important to turn it the correct way, as shown in the photo and indicated by the colour references on the board.

 

The USB board is attached to the connector on the DM500HD mainboard marked out with red in the picture above. It is impossible to mount the USB board in more than one direction, so you don’t have to think about how to turn the USB board. However, you should be very careful to align the USB board correctly so all the the pins go into the connector on the USB board correctly, as it is possible to misalign the USB board so only some of the pins are connected.

 

After you have ensured the board is aligned correctly so the connectors mate each other perfectly you just push the USB board down. Arrange any spare cable so it won’t interfere with the fan in the lid. You can connect an internal USB device like a USB flash memory to the internal USB connector on the board.

Carefully put the lid back on the box and make sure nothing obstructs the fan. Fasten the lid with the four screws.

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GoPro Hero HD bus interface

If you want to buy any dock connectors for the GoPro HD  bus you can order them online at http://www.chargeconverter.com/store/sandisk .

There are different ways to number the pins in the connector, so here we first show how we number the pins in this document. Below is a picture of the female dock connector.

Female GoPro connector pin numbering

Female GoPro connector numbering

Then comes the male GoPro connector.  First the most simple ones.

Cradle GoPro connector pin numbering

Then a picture of the male connector from the the front.

Male GoPro connector pin numbering from front side

Then the pin numbering from the soldering side.

Male GoPro connector pin numbering from soldering side

List of pin function

PinFunction

  1. GND
  2. R video out – component Pb/Cb or composite (composite video out activated by grounding ID3 and ID4, component video out activate by grounding ID2 – only valid for old firmwares, current versions require eeprom).
  3. G video out – component Y
  4. B video out – component Pr/Cr
  5. USB +5V power
  6. as above
  7. USB Data+
  8. USB Data-
  9. GND
  10. Audio out Right
  11. Audio out Left
  12. Pwr/Mode button (tie to ground to activate)
  13. Playback mode button (tie to ground to activate)
  14. Audio in Right
  15. Audio in Left
  16. IR input
  17. Trig digital output
  18. GND (?)
  19. ID1 digital input
  20. ID2 digital input
  21. ID3 digital input
  22. ID4 digital input
  23. Adapter output – power output for external equipment (follows internal battery power).
  24. as above, but only powered when camera is on
  25. VBat+ external power input ?
  26. as above
  27. GND
  28. DATA interface I2C
  29. CLK interface I2C
  30. GND

Acknowledgements
This information was compiled with permission from forum threads at GoPro User forum and RC-cam forum. More details and pictures can be found there.

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