Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to manipulate the pins on an old parallel port, then most commonly used for printers ...

In the world of social media, “keeping receipts” refers to the practice of storing evidence that may come in handy for a callout post at a later date. For [Teddy Warner], though, it’s more applicable ...

The Raspberry Pi Compute Module 5 is tiny computer on a module with a quad-core Arm Cortex-A76 processor and up to 16GB of LPDDR4 memory, 64GB of eMMC storage, and optional support for WiFi 5 and ...

Aim to replace 80% of your pre-retirement income to maintain lifestyle post-retirement. Factor in income from Social Security and pensions, not just savings, for retirement funds. Use the 4% rule to ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Ebony Howard is a certified public accountant and a QuickBooks ProAdvisor tax ...

Elysse Bell is a finance and business writer for Investopedia. She writes about small business, personal finance, technology, and more. Erika Rasure is globally-recognized as a leading consumer ...