# M5Stack Air Quality Kit v1.1

> ESP32-S3 based air quality monitor with SEN55 particulate/VOC sensor, SCD40 CO2 sensor, 1.54" e-ink display, 600mAh battery, and Grove connector.

## Quick Facts

- **Brand:** M5Stack
- **Board Type:** dev-board
- **Price:** ~$89.9
- **Product Readiness:** consumer
- **CPU:** ESP32-S3FN8
- **CPU Architecture:** Xtensa LX7
- **CPU Cores:** 2
- **RAM:** 512KB SRAM
- **Flash:** 8 MB
- **Power:** USB-C / 3.7V Li-Po
- **Operating Voltage:** 3.3V
- **Dimensions:** 72.0 x 56.0 x 26.5 mm
- **Weight:** 91.4 g
- **Battery:** 600 mAh
- **Antenna:** Built-in PCB antenna
- **Display:** 1.54" E-Ink 200x200

## Connectivity

- **Wifi:** WiFi 4
- **Bluetooth:** BLE 5.0

## Compatible Firmware

arduino, UIFlow

## Use Cases

- Air Quality Monitoring
- Environmental Monitoring
- Smart Home
- Indoor Air Quality

## Components

- **ESP32-S3FN8** (MCU): Espressif dual-core Xtensa LX7 MCU with WiFi and BLE 5.0, 8MB integrated flash — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.espressif.com%2Fsites%2Fdefault%2Ffiles%2Fdocumentation%2Fesp32-s3_datasheet_en.pdf&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)
- **SEN55** (Environmental Sensor): Sensirion multi-sensor module measuring PM1.0, PM2.5, PM4, PM10, VOC, temperature and humidity — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsensirion.com%2Fproducts%2Fcatalog%2FSEN55&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)
- **SCD40** (CO2 Sensor): Sensirion miniaturized CO2 sensor using photoacoustic measurement, 400-2000 ppm range — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fsensirion.com%2Fproducts%2Fcatalog%2FSCD40&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)
- **GDEY0154D67** (Display): 1.54 inch e-paper display with 200x200 pixel resolution, ultra-low power consumption — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.good-display.com%2Fproduct%2F442.html&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)
- **RTC8563** (RTC): Low-power RTC for sleep/wake scheduling and timekeeping — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.nxp.com%2Fdocs%2Fen%2Fdata-sheet%2FPCF8563.pdf&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)

## Protocols

- **I2C**
- **WiFi**
- **Grove**

## Description

## Overview

The M5Stack Air Quality Kit v1.1 is a comprehensive air quality monitoring device powered by the M5StampS3A (ESP32-S3). It combines a Sensirion SEN55 multi-sensor for PM1.0, PM2.5, PM4, PM10 particulates, temperature, humidity, and VOC measurement with an SCD40 CO2 sensor. Data is displayed on a 1.54" e-ink screen.

## Key Features

- **ESP32-S3FN8** dual-core Xtensa LX7 processor with 8MB flash
- **SEN55** all-in-one environmental sensor (PM, temperature, humidity, VOC)
- **SCD40** true CO2 sensor
- **1.54" e-ink display** (200x200px) for always-on readings
- **600mAh battery** with RTC8563 low-power management
- Grove (HY2.0-4P) connector for expansion
- Passive buzzer for alerts
- LEGO-compatible mounting holes and magnetic base
- EZDATA cloud platform compatible

## Specifications

| Parameter | Value |
|-----------|-------|
| MCU | ESP32-S3FN8 (Dual-core Xtensa LX7) |
| Flash | 8 MB |
| Display | 1.54" e-ink, 200x200px (GDEY0154D67) |
| Sensors | SEN55 (I2C 0x69), SCD40 (I2C 0x62) |
| RTC | RTC8563 |
| Battery | 600mAh @ 3.7V |
| Dimensions | 72.0 x 56.0 x 26.5 mm |
| Weight | 91.4 g |
| Operating Temp | 0-40°C |

## Monitored Parameters

- PM1.0, PM2.5, PM4, PM10 particulate matter
- Temperature and humidity
- VOC (Volatile Organic Compounds) index
- CO2 concentration

## Where to Buy

- [OpenELAB](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fm5stack-air-quality-v1-1-m5stamps3a&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export) — $89.90

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fm5stack-air-quality-v1-1-m5stamps3a&ref=openhardware.directory&product=m5stack-air-quality-kit&source=md-export)

## Tags

`air-quality`, `esp32-s3`, `co2-sensor`, `particulate-sensor`, `voc`, `e-ink`, `m5stack`, `environmental-monitoring`

## Images

![M5Stack Air Quality Kit v1.1](https://nbg1.your-objectstorage.com/openhardware-directory/entities/m5stack-air-quality-kit/7c33efc98d36.webp)

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