STM32F103C8T6 Minimum System Board STM32 ARM Core Module board is a low-cost Minimum System Development Board for ARM Microcontroller STM32F103C8T6 from ST microsystems. It connects with a Micro USB, so easily and simple programming interface with computer/laptop.
100% compatible with Espressif, combines a CPU with 2 Tensilica LX6 cores, clocked at up to 240 MHz, and 512 kiloBytes of SRAM in a single microcontroller. It also integrates a radio unit for WLAN (according to 802.11b/g/n) and Bluetooth (Classic and BLE).
The ESP32 Dev Kit is an Arduino compatible Wifi/Bluetooth board. In addition to the 802.11 b/g/n WLAN, the BLE (Bluetooth Low Energy) function enables maximum connectivity with the outside world.
The ESP32-CAM has a very competitive small-size camera module that can operate independently as a minimum system, measuring only 27*40.5*4.5mm, with deep sleep current and a minimum of 6mA.
WiFi Kit 8 is a classic IoT dev-board, it's a highly integrated product based on ESP8266 (Wi-Fi), Li-Po battery management system, 0.91″ OLED is also included. It's the best choice for smart cities, smart farms, smart homes, and IoT makers.