The NodeMcu is an open-source firmware and development kit that helps you to Prototype your IOT product within a few Lua script lines.
The Development Kit based on ESP8266, integates G..
Remote ON/OFF–Turn electrical devices on/off from anywhere
App Support –Free iOS and Android mobile App eWeLink
Sync Status–Real-time device status provided to App
Timing–Set scheduled/countdown/loop timers to turn on/off at specified time
This is a custom ESP32 (ESP-WROVER-B 8MB PSRAM) based development board with an onboard 2G/GPRS Module SIM800L. The USB Type C pluggable board also has an onboard LiPo Battery Charging Circuit & Connector and is a good choice for building IoT applications.
WiFi Kit 8 is a cost-effective Internet of Things development board developed by HelTec Automation. The board contains the popular ESP8266 processor, 4MB Flash Memory, a CP2014 IC for USB to Serial Conversion, Lithium Battery Interface and Charge & Discharge circuit, on board WiFi Ant..