{"title":"FPGA \u0026 Logic","description":"\u003cp\u003eFPGA development boards and discrete logic gate modules for digital design enthusiasts. From artistic Xilinx Spartan-3E boards to TTL logic replicas — ideal for learning digital circuits, computer architecture, and hardware design.\u003c\/p\u003e","products":[{"product_id":"https-7np5wm-nq-myshopify-com","title":"4Bit TD4 CPU Self-made 74 Series Chip CPU","description":"\u003ch4\u003eWhat is it?\u003c\/h4\u003e\n\u003cp\u003eThis Product Is A 4-bit CPU, Made Of 9 Kinds Of 74 Series Small-Scale Integrated Circuit Chips, Through The Display Of Circuit Level, Intuitively Understand The Operation Process Of CPU, Easy To Complete The Basic Learning Of Digital Circuit Design, And Has An Intuitive Guidance For Teaching Or Self-Learning Research. This Product Needs Users To Have A Certain Electronic Welding Ability, Digital Circuit Basic Knowledge. Please Combine The Knowledge Tutorial To Use This Product, It Will Be Very Helpful For The Understanding And Learning Of Digital Circuits And Microcomputer Principles Of These Two Courses.\u003c\/p\u003e\n\u003ch4\u003eWhy did you make it?\u003c\/h4\u003e\n\u003cp\u003eThis Model Is SMT Version, PCB Board As Well As Completed Smd Capacitor, Smd Resistor And LED Installation, Greatly Reduce The Welding Work Of Components, But Still Need Your Patience.Quite The Version You Can Get From Other Channels, This Version We Offer Has Been Improved By Lots Of Practice.\u003c\/p\u003e\n\u003ch4\u003eWhat makes it special?\u003c\/h4\u003e\n\u003cp\u003eNow, You Look At This Simulation Program Running Diagram, What You Need To Know Has The Following Points: The Red Line Represents The Current Level Of The Line Is High (5V), And The Blue Represents The Level Is Low (I.E. 0V) The Whole System Is Driven By A CLOCK Pulse, RESET Low Level Is Effective, That Is, After The RESET Is Pulled Down, All Data In The System Is Cleared And Zero Restarted If You Have Already Learned The Basics Of Digital Circuits, Then You Should Also Try To Remember And Understand The Following Points, It Doesn't Matter If You Can't Or Understand Them All, You Can Learn Them All, Come Back And See Again Four 74HC161 Are Registers A, B, C, D Respectively, Which Can Be Used To Store 4 Bits Of Data\u003c\/p\u003e","brand":"innoelement Maker Store","offers":[{"title":"Default Title","offer_id":44517826887763,"sku":null,"price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/0891\/1443\/files\/s-l1600_3_6886315e-bf81-472e-ae2f-7e8dabe697ef.webp?v=1776881466"},{"product_id":"discrete-logic-gate-module10-pcs","title":"Discrete Logic Gate Module","description":"\u003ch3\u003eRevive computing history with our premium replica CPU1738 kit—ideal for building DIY CPUs, digital circuits, and hands‑on educational project\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eWhat is it?\u003c\/h4\u003e\n\u003cp\u003eThis kit is a comprehensive set of high-quality replica discrete logic gate modules inspired by the classic CPU1738 design. It includes essential gates such as NAND, NOR, XOR, and more. Each module is meticulously engineered for standalone use or to be combined into complex digital circuits—perfect for constructing a DIY 4-bit CPU, testing digital logic concepts, or powering innovative electronic experiments.\u003c\/p\u003e\n\u003ch4\u003eWhy did you make it?\u003c\/h4\u003e\n\u003cp\u003eWe created this kit to empower electronics enthusiasts, students, and makers to explore the fundamentals of digital logic and computer architecture hands‑on. By faithfully reviving the iconic CPU1738 design, we offer an accessible, practical platform to understand and experiment with the very building blocks that sparked the evolution of modern computing.\u003c\/p\u003e\n\u003ch4\u003eWhat makes it special?\u003c\/h4\u003e\n\u003cp\u003eTimeless Design: Faithfully recreates the classic CPU1738 architecture, connecting you to the pioneering era of digital computing.\u003c\/p\u003e\n\u003cp\u003ePremium Quality: Uses carefully selected, top‑grade components for reliable performance and long‑term durability in your projects.\u003c\/p\u003e\n\u003cp\u003eVersatile \u0026amp; Educational: Ideal for academic labs, DIY experiments, and creative projects, this kit not only teaches core digital electronics principles but also sparks innovation by enabling endless circuit possibilities.\u003c\/p\u003e\n\u003cp\u003eWhether you’re teaching digital logic, prototyping new ideas, or exploring computer history, this replica CPU1738 kit is your perfect gateway into the world of discrete electronics and DIY computing.\u003c\/p\u003e","brand":"innoelement Maker Store","offers":[{"title":"Default Title","offer_id":44517865357395,"sku":null,"price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/0891\/1443\/files\/20250417004546.jpg?v=1776883617"},{"product_id":"azpr-evboard-fpga-development-board-artwork","title":"AZPR EvBoard – FPGA Development Board Artwork","description":"\u003cp\u003eWhat is it?\u003c\/p\u003e\n\u003cp\u003eThe AZPR EvBoard (PCB girl) is a distinctive FPGA development board featuring a Xilinx Spartan-3E FPGA. Its standout feature is the artistic PCB design on the reverse side, depicting the …\u003c\/p\u003e\n\u003cp\u003eWhat is it?\u003c\/p\u003e\n\u003cp\u003eThe AZPR EvBoard (PCB girl) is a distinctive FPGA development board featuring a Xilinx Spartan-3E FPGA. Its standout feature is the artistic PCB design on the reverse side, depicting the character \"Shinkawa Saki\" through intricate circuit traces. This board serves both as a functional development platform and a piece of electronic art.\u003c\/p\u003e\n\u003cp\u003eWhy did you make it?\u003c\/p\u003e\n\u003cp\u003eOriginally discontinued, the AZPR EvBoard garnered a dedicated following among electronics enthusiasts and anime fans. Recognizing its unique appeal and educational value, we've revived this board to provide hobbyists and learners with access to this fusion of technology and art.​\u003c\/p\u003e\n\u003cp\u003eWhat makes it special?\u003c\/p\u003e\n\u003cp\u003eArtistic PCB Design: Features a visually striking depiction of \"Shinkawa Saki,\" blending aesthetics with engineering.\u003c\/p\u003e\n\u003cp\u003eEducational Tool: Ideal for those learning FPGA development, digital logic design, or custom CPU creation.\u003c\/p\u003e\n\u003cp\u003eCommunity Support: Backed by a passionate community, offering shared resources and project ideas.\u003c\/p\u003e\n\u003cp\u003eMultiple Versions Available:\u003c\/p\u003e\n\u003cp\u003eBare PCB (2 pieces): $8\u003c\/p\u003e\n\u003cp\u003eSemi-Assembled (with common components): $36\u003c\/p\u003e\n\u003cp\u003eFully Assembled \u0026amp; Programmed: $99​\u003c\/p\u003e\n\u003cp\u003eWhether you're an educator, student, or hobbyist, the AZPR EvBoard offers a unique platform to explore FPGA development while appreciating the artistry embedded in its design.​\u003c\/p\u003e\n\u003cp\u003eVideos\u003c\/p\u003e\n\u003cp\u003eOriginal product page: \u003ca href=\"https:\/\/www.tindie.com\/products\/johnson\/azpr-evboard-fpga-development-board-artwork\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehttps:\/\/www.tindie.com\/products\/johnson\/azpr-evboard-fpga-development-board-artwork\/\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yone2.net\/cpu-jisak\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eSource Code\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/yone2.net\/azpr_evboard\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDocumentation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/gihyo.jp\/book\/2012\/978-4-7741-5338-4\/support\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDesign Files\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"innoelement","offers":[{"title":"Default Title","offer_id":44575380340819,"sku":"TINDIE-AZPR-EVBOARD-FPGA-DEVELOPMENT-BOARD-ARTWORK","price":8.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/0891\/1443\/files\/2025-04-21T15_06_18.901Z-1734794885707-scaled.jpg?v=1778186354"},{"product_id":"fpga-based-gigatron-ttl-kit","title":"FPGA-based Gigatron TTL kit","description":"\u003cp\u003eThis kit delivers a refined FPGA implementation of the Gigatron TTL microcomputer, originally built from discrete 7400-series TTL chips and ported to the Tang Nano 9K FPGA board\u003c\/p\u003e\n\u003cp\u003egigatron.io\u003c\/p\u003e\n\u003cp\u003ehackaday…\u003c\/p\u003e\n\u003cp\u003eThis kit delivers a refined FPGA implementation of the Gigatron TTL microcomputer, originally built from discrete 7400-series TTL chips and ported to the Tang Nano 9K FPGA board\u003c\/p\u003e\n\u003cp\u003egigatron.io\u003c\/p\u003e\n\u003cp\u003ehackaday.io\u003c\/p\u003e\n\u003cp\u003e. It includes a custom adapter board that handles video and audio D\/A conversion using discrete resistors and capacitors for an authentic retro experience\u003c\/p\u003e\n\u003cp\u003ehackaday.io\u003c\/p\u003e\n\u003cp\u003e. The VGA output now leverages an improved level-shifting scheme to eliminate the unstable signals observed with the original auto level converter\u003c\/p\u003e\n\u003cp\u003ehackaday.io\u003c\/p\u003e\n\u003cp\u003e. The XC9572XL CPLD originally used for voltage-level translation has been replaced with readily available components following its discontinuation. All resistor and capacitor networks have been reorganized into a cohesive SMD-only assembly for simplified soldering and lower cost. The result is a complete, low-cost, drop-in kit that preserves every Gigatron feature while providing a smoother build and stable performance for lightweight FPGA learning.\u003c\/p\u003e\n\u003cp\u003eWhat is it?\u003c\/p\u003e\n\u003cp\u003eA ready-to-solder FPGA-based replica of the Gigatron TTL microcomputer.\u003c\/p\u003e\n\u003cp\u003eIncludes FPGA bitstream for the Tang Nano 9K board, adapter PCB, all discrete components, and connectors.\u003c\/p\u003e\n\u003cp\u003eCompatible with standard VGA monitors (160×120 @ ~60 Hz) and NES-style game controllers\u003c\/p\u003e\n\u003cp\u003eWhy did you make it?\u003c\/p\u003e\n\u003cp\u003eTo overcome the original design’s VGA instability caused by its auto-conversion logic, avoid sourcing the discontinued XC9572XL CPLD, and simplify assembly by moving to an all-SMD RC network.\u003c\/p\u003e\n\u003cp\u003eWhat makes it special?\u003c\/p\u003e\n\u003cp\u003eStable VGA output with robust level shifting\u003c\/p\u003e\n\u003cp\u003eUses easily sourced, modern components in place of discontinued CPLDs\u003c\/p\u003e\n\u003cp\u003eClean, all-SMD passive network for quick assembly and low cost\u003c\/p\u003e\n\u003cp\u003eFully retains the vintage Gigatron instruction set, video, and audio capabilities\u003c\/p\u003e\n\u003cp\u003eVideos\u003c\/p\u003e\n\u003cp\u003eOriginal product page: \u003ca href=\"https:\/\/www.tindie.com\/products\/johnson\/fpga-based-gigatron-ttl-kit\/\" target=\"_blank\" rel=\"noopener noreferrer\"\u003ehttps:\/\/www.tindie.com\/products\/johnson\/fpga-based-gigatron-ttl-kit\/\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/github.com\/kervinck\/gigatron-rom\/tree\/master\/Contrib\/docvolt\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDocumentation\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/hackaday.io\/project\/196303-fpga-implementation-of-the-gigatron-ttl-computer?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDesign Files\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"innoelement","offers":[{"title":"Default Title","offer_id":44575380439123,"sku":"TINDIE-FPGA-BASED-GIGATRON-TTL-KIT","price":22.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/0891\/1443\/files\/2025-07-02T04_46_46.735Z-_E5_BE_AE_E4_BF_A1_E5_9B_BE_E7_89_87_20250702120154.jpg?v=1778186366"}],"url":"https:\/\/www.retromakerkits.com\/collections\/fpga-logic.oembed","provider":"RetroMakerKits by innoelement","version":"1.0","type":"link"}