Environmental monitoring with Adafruit IO and MQTT

Smart air quality guard. Monitors toxins, temp, and humidity. Auto-fan cooling with real-time cloud alerts to keep your space safe.

ronpang

Published October 21, 2025 · © Apache License 2.0 (Apache-2.0)

164 UCC

109 WCC

12 VAR

2 Followers

Original author: Crazy Cat · ChinaOriginal source (new tab)

Components

Hardware components

WIZnet - W6300-EVB-Pico2

x 1

Project description

Step 1: Gather Components For this project, you will need: W6300-EVB-PICO2 Microcontroller Sensirion SFA30 Sensor USB Fan Breadboard and jumper wires Step 2: Hardware Setup W5100S-EVB-PICO2 - Reliable IoT Foundation RP2350 dual Cortex-M33 (150MHz) + 520KB SRAM 16MB flash + 16KB network buffers 4 simultaneous sockets, IPv4 only Essential security with OTP memory Cost-effective for basic IoT applications W6300-EVB-PICO2 - Advanced IoT Solution Same powerful RP2350 core foundation 64KB network buffers + 8 simultaneous sockets IPv4/IPv6 dual stack support Enhanced security with TrustZone +…

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