IT News<p>Upgrade Board Adds GPIO Pins To Your Replica PDP-11 - Like many Hackaday readers, [Steven Stallion] has had his eyes on the replica PDP-... - <a href="https://hackaday.com/2021/09/01/upgrade-board-adds-gpio-pins-to-your-replica-pdp-11/" rel="nofollow noopener" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2021/09/01/upgrad</span><span class="invisible">e-board-adds-gpio-pins-to-your-replica-pdp-11/</span></a> <a href="https://schleuss.online/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>retrocomputing</span></a> <a href="https://schleuss.online/tags/gpioexpander" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gpioexpander</span></a> <a href="https://schleuss.online/tags/raspberrypi" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>raspberrypi</span></a> <a href="https://schleuss.online/tags/pidp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pidp</span></a>-11/70 <a href="https://schleuss.online/tags/pdp" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>pdp</span></a>-11 <a href="https://schleuss.online/tags/gpio" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>gpio</span></a> <a href="https://schleuss.online/tags/i2c" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>i2c</span></a></p>