user8044: I bought an assembled Arduino Uno protoshield version 5, similar to this:

I bought it because I would like to solder wires from Arduino IOs, and I was quite disappointed with the impossibility to do so, since the solder points are already taken by the female headers, which are not connected to anything (there are not tracks coming from then to other islands, which I find quite dumb).
I am considering to remove (by desoldering) the headers, so I can access the holes for soldering wires (instead of plugging them to headers), but before doing so, I ask:

Is there a good way to solder wires so they are electrically connected to the Arduino IO pins?


user37523: It looks like you are missing the solder-less breadboard piece for your shield. The shield I bought came with one, and some 2 sided sticky "foam tape" to affix it to the circuit board.

If you use the shield with the solder-less breadboard, then it would be not be feasible to stack another shield on top of it because of the height of the components and jumper wires plugged into it.
I tested my shield and found the same thing you did, the header pins are not connected to any of the connection points on the board. That is dumb indeed.
As CrossRoads mentioned in his answer, there are other options, such as screw terminal shields. They sell them for $2.43 USD on aliexpress.com Screw Terminal Shield.

user42539: Other boards bring the header pins to prototype area pins, as I do here
http://www.crossroadsfencing.com/BobuinoRev17/UnoScrewSheild2016.jpg


user368: For the signals, get some AWG30 wire and solder them underneath to the female header pads. For power, get some AWG22 or AWG24 wire and solder them to the top of the male header pads.

8044: <p>I bought an assembled Arduino Uno protoshield version 5, similar to this:</p>

<p><img src="https://i.stack.imgur.com/oqbZo.jpg" alt="enter image description here"></p>

<p>I bought it because I would like to solder wires from Arduino IOs, and I was quite disappointed with the impossibility to do so, since the solder points are already taken by the female headers, which are not connected to anything (there are not tracks coming from then to other islands, which I find quite dumb).</p>

<p>I am considering to remove (by desoldering) the headers, so I can access the holes for soldering wires (instead of plugging them to headers), but before doing so, I ask:</p>

<blockquote>
  <p>Is there a good way to solder wires so they are electrically connected to the Arduino IO pins?</p>
</blockquote>
 37523: <p>It looks like you are missing the solder-less breadboard piece for your shield. The shield I bought came with one, and some 2 sided sticky "foam tape" to affix it to the circuit board.</p>

<p><a href="https://i.stack.imgur.com/9m6gJ.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/9m6gJ.png" alt="enter image description here"></a></p>

<p>If you use the shield with the solder-less breadboard, then it would be not be feasible to stack another shield on top of it because of the height of the components and jumper wires plugged into it.</p>

<p>I tested my shield and found the same thing you did, the header pins are not connected to any of the connection points on the board. That is dumb indeed.</p>

<p>As CrossRoads mentioned in his answer, there are other options, such as screw terminal shields. They sell them for $2.43 USD on aliexpress.com <a href="https://www.aliexpress.com/item/Free-shipping-Proto-Screw-Shield-Assembled-prototype-terminal-expansion-board-for-Arduino/32382374867.html?spm=2114.search0104.3.86.acbb5c137Lx2Jl&amp;ws_ab_test=searchweb0_0,searchweb201602_3_10152_10151_10065_10344_10068_10130_10342_10547_10343_10340_10548_10341_10696_10084_10083_10618_10139_10307_5711215_10313_10059_10534_100031_10103_10624_10623_443_10622_5711315_10621_10620_5722415,searchweb201603_37,ppcSwitch_5&amp;algo_expid=ec60efcb-f288-4925-ac2c-2672760191ae-12&amp;algo_pvid=ec60efcb-f288-4925-ac2c-2672760191ae&amp;transAbTest=ae803_4&amp;priceBeautifyAB=0" rel="nofollow noreferrer">Screw Terminal Shield</a>.</p>
 42539: <p>Other boards bring the header pins to prototype area pins, as I do here
<a href="http://www.crossroadsfencing.com/BobuinoRev17/UnoScrewSheild2016.jpg" rel="nofollow noreferrer">http://www.crossroadsfencing.com/BobuinoRev17/UnoScrewSheild2016.jpg</a>
<a href="https://i.stack.imgur.com/AfPzD.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/AfPzD.jpg" alt="enter image description here"></a></p>
 368: <p>For the signals, get some AWG30 wire and solder them underneath to the female header pads. For power, get some AWG22 or AWG24 wire and solder them to the top of the male header pads.</p>
