--- title: "Adding an LED Load Monitor to the ZX80" type: "article" slug: "adding-an-led-load-monitor-to-the-zx80" url: "http://localhost/article/adding-an-led-load-monitor-to-the-zx80/" markdown_url: "http://localhost/article/adding-an-led-load-monitor-to-the-zx80.md" published_at: "2020-10-27T17:18:29+00:00" modified_at: "2024-06-23T00:44:06+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "Single LED (light emitting diode) added to the tape \"ear\" input of the computer. The voltage for lighting the LED is just right for loading a program from the cassette tape." category: - name: "SYNC" slug: "sync" taxonomy: "category" url: "http://localhost/category/periodicals/sync/" post_tag: - name: "1981" slug: "year-1981" taxonomy: "post_tag" url: "http://localhost/tag/year-1981/" - name: "Cecil Bridges" slug: "cecil-bridges" taxonomy: "post_tag" url: "http://localhost/tag/cecil-bridges/" - name: "Hardware project" slug: "hardware-project" taxonomy: "post_tag" url: "http://localhost/tag/hardware-project/" - 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/" publication: "Sync" publication_r: id: 10243 title: "SYNC" type: "periodical" url: "http://localhost/periodical/sync-magazine/" authors: "Cecil Bridges" volume: "1" issue: "1" issues_articles: - id: 26635 title: "SYNC v1 n1" type: "issue" url: "http://localhost/issue/sync-v1-n1/" pages: "38" pubdate: "January/February 1981" archive_link: false volumeissue: "v1n1" companies_articles: - id: 10723 title: "Cecil Bridges" type: "company" url: "http://localhost/company/cecil-bridges/" --- # Adding an LED Load Monitor to the ZX80 Single LED (light emitting diode) added to the tape “ear” input of the computer. The voltage for lighting the LED is just right for loading a program from the cassette tape.