ESP32

An ESP32 board is the brain of a DIY smart-home build: a small computer with Wi-Fi that reads sensors and sends the values to Home Assistant. The boards here come from M5Stack, have USB-C and a Grove port, and are programmed with ESPHome, Arduino or PlatformIO. Not sure which to choose? The AtomS3 Lite is enough for most sensor projects. The NanoC6 is the choice if you want to try Zigbee, Thread or Matter.

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ESP32

M5Stack NanoC6 (C125) – ESP32-C6 board (Wi-Fi 6, Zigbee, Thread, Matter)

M5Stack AtomS3 Lite (C124) – ESP32-S3 development board

M5Stack ATOM Lite (C008) – ESP32 development board

M5Stack AtomS3R (C126) – ESP32-S3 with 0.85" colour display

M5Stack Atom VoiceS3R (C126-ECHO) – voice unit with mic and speaker (ESP32-S3)

M5Stack NanoH2 (C149) – ESP32-H2 for Zigbee, Thread and Matter

M5Stack Gateway H2 (U195) – ESP32-H2 Zigbee/Thread unit with Grove

M5Stack Atomic PoE Base (A091) – Ethernet and power over the network cable

M5Stack PoESP32 (U138) – ESP32 with Ethernet and PoE

M5Stack AtomS3R-CAM (C126-CAM) – small ESP32-S3 camera

M5Stack Atomic Voice Base (A149) – microphone and speaker for Atom

M5Stack Atomic RS485 Base (A131) – RS485 and 12 V power for Atom

M5Stack Atomic CAN Base (A103) – isolated CAN bus for Atom

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