Arduino Uno R3 is one of the widely used microcontroller board for prototyping. Uno R3 SMD module is based on the Atmega328P-AU MCU of Atmel AVR Family. It is a 8 Bit Microcontroller. This comes with on-board programmer CP2102, so no need to connect an external programmer. It has onboard..
Overview
The ESP32 Thing Plus C (SparkFun) is a comprehensive development platform for Espressif's ESP32. Like the 8266 and ESP32 Thing, the ESP32 Thing Plus is a WiFi-compatible microcontroller with support for both Bluetooth Classic (i.e. SPP) and Bluetooth low-energy (i.e. BLE, BT4.0, Blueto..
The full kit of A6 GSM/GPRS has an onboard CH340 IC for serial to USB functionality. A keyboard , an LCD , relay & buzzer are also provided.An MCU of STC 8051 family is onboard which is factory preloaded with demo code. 6 way DIP switch seen near the MCU decides the connection between USB -- MCU..