---
title: "Widget"
id: 14578
type: "product"
slug: "widget"
url: "http://localhost/product/widget/"
markdown_url: "http://localhost/product/widget.md"
published_at: "2019-11-30T01:12:25+00:00"
modified_at: "2026-03-22T13:23:10+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Interface board allows ZX80 to communicate through serial (RS232) port and parallel TTL input and output ports."
category:
  - name: "Interfacing"
    slug: "interfacing"
    taxonomy: "category"
    url: "http://localhost/category/hardware/interfacing/"
post_tag:
  - name: "CAI Instruments"
    slug: "cai-instruments-inc"
    taxonomy: "post_tag"
    url: "http://localhost/tag/cai-instruments-inc/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
model:
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
genre:
  - name: "Hardware"
    slug: "hardware"
    taxonomy: "genre"
    url: "http://localhost/type/hardware/"
  - name: "Interfacing"
    slug: "interfacing"
    taxonomy: "genre"
    url: "http://localhost/type/interfacing/"
company:
  id: 10717
  title: "CAI Instruments, Inc."
  type: "company"
  url: "http://localhost/company/cai-instruments-inc/"
price: 49.95
rarity: "Uncommon"
product_reviews:
  - id: 52500
    title: "CAI Instrument’s Widget Board"
    type: "article"
    url: "http://localhost/article/cai-instruments-widget-board/"
companies_products:
  - id: 10717
    title: "CAI Instruments, Inc."
    type: "company"
    url: "http://localhost/company/cai-instruments-inc/"
---

# Widget

Interface board allows ZX80 to communicate through serial (RS232) port and parallel [TTL](https://en.wikipedia.org/wiki/Transistor%E2%80%93transistor_logic) input and output ports.