Simon Walters<p>Just to help anyone else using one of these <a href="https://fosstodon.org/tags/AliExpress" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>AliExpress</span></a> <a href="https://fosstodon.org/tags/SAMD21" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>SAMD21</span></a> <a href="https://fosstodon.org/tags/M0" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>M0</span></a> boards, pin marked D2 is actually pin4 and pin marked D4 is pin2<br><a href="https://vi.aliexpress.com/item/4000169610268.html?spm=a2g0o.order_list.order_list_main.10.75281802K6zj5w&gatewayAdapt=glo2vnm" rel="nofollow noopener" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">vi.aliexpress.com/item/4000169</span><span class="invisible">610268.html?spm=a2g0o.order_list.order_list_main.10.75281802K6zj5w&gatewayAdapt=glo2vnm</span></a></p>