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Wire · technology

I replaced my $60 Raspberry Pi with a $5 ESP32 and my smart home never noticed

29 July 2026 · By · Wire by Fusion42

Published

29 July 2026

Topic

technology

◆ Sectors

Deep Tech: IoT & Edge

◆ Source

Read at makeuseof.com →

◆ Verified

Fusion42 · 29 July 2026 · Fusion42 review

An author details successfully replacing a $60 Raspberry Pi, a full single-board computer, with a $5 ESP32 microcontroller for reading sensors in a home automation system. The much cheaper and more power-efficient component handled the task without any degradation in performance.

This Wire brief sits within Fusion42's coverage of Deep Tech: IoT & Edge.

◆ ◆ The Wire takeaway

Your bill of materials is probably too high. An ESP32 can now handle edge compute tasks that once required a full single-board computer, at a tenth of the cost.

◆ Coverage

1 source · 29 Jul 2026

◆ Related on Wire

◆ Topics

Deep Tech: IoT & Edgeiothardware-costbill-of-materialsembedded-systemsesp32raspberry-pi