M5Stack
M5Stack offers modular stackable product development toolkits based on the ESP32 Wi-Fi® SoC. The M5 ecosystem consists of main "Core" controllers, stackable modules and bases, grove-compatible sensors, and different applications for STEM, makers, and industry IoT. M5Stack is committed to providing easy-to-develop and cost-effective IoT devices.
Featured Products by M5Stack

BASIC v2.7 IoT Controller
Adopts Espressif ESP32 chipset, equipped with two low-power microprocessors.

FIRE V2.7 Wi-Fi IoT Controller
Adopts Espressif ESP32 main control chip, equipped with two low-power microprocessors.

M5GO IoT Starter Kit V2.7
Contains core controller M5GO + 6 expansion units with different functions.

M039-V1.1 Stepmotor Driver Module
Adapted to M5 main control, using STM32+HR8825 stepper motor drive scheme.