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Qudio documentation

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Tilman
2019-01-22 22:36:05 +01:00
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3 changed files with 29 additions and 12 deletions
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documentation/qudio/images/IMG_20190122_221540.jpg
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documentation/qudio/index.html
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@@ -284,7 +284,32 @@ h2, h3, h4 {
width="320" alt="The CJMCU-5102 audio module needs a 10 k&#8486; resistor between XMT and 3.3V to unmute. I just soldered the biggest one I had directly on the board. The FLT, DMT, SCL and FMT pins are all connected to the GND pin on the backside." /></a>
</p>
<h4 id="camera">Camera</h3>
<p>
Before the <a href="http://www.penguin.cz/~utx/hardware/USB_Camera_AX2311/">camera</a> can be put into the case, the clip on the backside has to be removed. Simply push out the pin and take it off. Now you can clip off the clip holders from the camera case.
</p>
<p>
Unfortunately, the cable also has to be moved from the back of the case to the bottom, in order to be able to place the camera at the bottom. You can just make a small cutout with a sharp knife to make space for the cable. However, if you want to play it safe it might be better to open the case up with a screwdriver before cutting it.
</p>
<p>
With the cable out of the way, the camera can be shoved into the holder at the center of the bottom part.
</p>
<p class="gallery">
<a href="images/IMG_20190122_221540.jpg" data-fancybox data-caption="We have to put a small hole into the camera case in order to move the cable from the back to the bottom. The clip is also being removed."><img src="images/IMG_20190122_221540.jpg"
width="320" alt="We have to put a small hole into the camera case in order to move the cable from the back to the bottom. The clip is also being removed." /></a>
</p>
<p>
Finally, the focus has to be adjusted. The best way for that is connect the camera to another computer to get a live picture. You can also do it later on, but then you will have to take a snapshot and readjust the lens in turns. It is just easier with direct feedback.
</p>
<p>
Put the cover on top for the correct distance, then check if you get a clear picture. If not, turn the lens a bit and check again until you have a sharp image.
</p>
<h4 id="buttons">Buttons</h3>
@@ -295,8 +320,10 @@ h2, h3, h4 {
<p class="gallery">
<a href="images/IMG_20190122_213553.jpg" data-fancybox="buttons" data-caption="The straightened pins can be directly soldered onto the M-F jumper wires"><img src="images/IMG_20190122_213553.jpg"
width="320" alt="The straightened pins can be directly soldered onto the M-F jumper wires" /></a>
<a href="images/IMG_20181211_134417_cr.jpg" data-fancybox="buttons" data-caption=""><img src="images/IMG_20181211_134417_cr.jpg"
width="320" alt="" /></a>
<a href="images/IMG_20190122_221850.jpg" data-fancybox="buttons" data-caption="In the case, the straightened pins need to be bent even more upwards in order to leave enough space for the camera. In this earlier test I used F-F jumper wires, which is also an option. However, I got tired of having them falling off while working on the electronics, so I soldered the cable ends onto the button pins."><img src="images/IMG_20190122_221850.jpg"
width="320" alt="In the case, the straightened pins need to be bent even more upwards in order to leave enough space for the camera. In this earlier test I used F-F jumper wires, which is also an option. However, I got tired of having them falling off while working on the electronics, so I soldered the cable ends onto the button pins." /></a>
<!--a href="images/IMG_20181211_134417_cr.jpg" data-fancybox="buttons" data-caption="In the case, the straightened pins need to be bent even more upwards in order to leave enough space for the camera"><img src="images/IMG_20181211_134417_cr.jpg"
width="320" alt="In the case, the straightened pins need to be bent even more upwards in order to leave enough space for the camera" /></a-->
</p>
<h4 id="sensor">Sensor</h3>
@@ -342,16 +369,6 @@ h2, h3, h4 {
The led is put in the small holder at the front side inside the cover. Connect the long leg to pin 15 (GPIO 22) of the Raspberry Pi (with a resistor in between, if needed), the short one to pin 9 (GND). I dimmed the LED with a 220 &#8486; resistor even though it could work on 3.3 V because it was just too bright.
</p>
<h4 id="camera">Camera</h3>
<p>
The <a href="http://www.penguin.cz/~utx/hardware/USB_Camera_AX2311/">webcam</a> is simply shoved into the holder at the center of the bottom. Afterwards, we need to adjust the focus. The best way for that is connect the camera to another computer to get a live picture. You can also do it later on, but then you will have to take a snapshot and readjust the lens in turns. It is just easier with direct feedback.
</p>
<p>
Put the cover on top for the correct distance, then check if you get a clear picture. If not, turn the lens a bit and check again until you have a sharp image.
</p>
<h4 id="cables">Closing the Case</h3>
<p>