{"id":887,"date":"2021-12-29T23:58:29","date_gmt":"2021-12-29T22:58:29","guid":{"rendered":"http:\/\/openchessboard.com\/?post_type=product&p=887"},"modified":"2026-07-20T01:20:07","modified_gmt":"2026-07-19T23:20:07","slug":"openchessboard-pcb","status":"publish","type":"product","link":"https:\/\/openchessboard.com\/index.php\/product\/openchessboard-pcb\/","title":{"rendered":"OpenChessBoard-PCB (second choice\/unfinished)"},"content":{"rendered":"

Attention: This is a B-Series Sale! This PCB does not have the hall sensors soldered on the PCB. Only order this if you want to solder them yourself.<\/strong><\/span><\/p>\n

The OpenChessBoard-PCB is a 32 cm x 32 cm (12.6 in x 12.6 in) 2-Layer circuit board which contains<\/p>\n

– the\u00a0 64 sensors for piece detection,<\/p>\n

– 64 x 4 LEDs for highlighting squares and indicate moves,<\/p>\n

– high-speed multiplexing circuit to reduce the required input and outputs of the micro-controller<\/p>\n

– 5 screw-holes for easy mounting<\/p>\n

– super slim PCB design (< 5 mm)<\/p>\n

This PCB matches directly the size of the chess board which can be placed on top of the circuit board as a semi-transparent playing surface. The circuit board can be directly connected to an Arduino Nano 33 IoT (not included) with a matching pin-out where the Arduino can be soldered directly onto the board.<\/p>\n

The board uses only 1 analog input and 11 digital outputs of a micro-controller. The control firmware is open-source and ready to be used on Arduino development boards.<\/p>\n

The software is open-source and ready to integrate the board to your Lichess account. A one-time procedure to setup the board is done in only a few steps and from that point on, the board is a standalone device. Just connect the board via micro-USB to a charger or a power bank and the board automatically connects to your ongoing game on Lichess.org. Not Buttons needed!<\/p>\n

Game initialization is handled directly via your Lichess App which is available for Android and iOS.<\/p>\n

Currently all products are not in stock and will be produced by order. The production time is about 3 weeks and additional delivery time depends on your location.<\/p>\n","protected":false},"excerpt":{"rendered":"

OpenChessBoard-PCB, 32 cm x 32 cm, (12.6 in x 12.6 in), 2-Layer circuit board, without microcontroller<\/p>\n","protected":false},"featured_media":1174,"comment_status":"open","ping_status":"closed","template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":100,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_themeisle_gutenberg_block_has_review":false,"_ti_tpc_template_sync":false,"_ti_tpc_template_id":""},"product_cat":[42],"product_tag":[],"class_list":["post-887","product","type-product","status-publish","has-post-thumbnail","hentry","product_cat-hardware"],"_links":{"self":[{"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/product\/887","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/comments?post=887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/media\/1174"}],"wp:attachment":[{"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/media?parent=887"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/product_cat?post=887"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/openchessboard.com\/index.php\/wp-json\/wp\/v2\/product_tag?post=887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}