5V WiFi relay module ESP8266 5V WiFi relay module Things smart home remote control switch phone APP ESP-01S relay module with The intelligent relay module based on ESP-01S WIFI module design, can be used for DIY their own smart switch, you can remotely control through the mobile phone APP. Features: * Module operating voltage: DC 5V * Relay load capacity: 10A 250VAC 10A 125VAC 10A 30VDC 10A 28VDC ESP8266 WIFI DHT11 This module to ESP8266-01 / ESP-01S as the master, DHT11 for the temperature and humidity sensor. ESP8266 collection environment temperature and cooling upload to the server. Support 3.7v-12V DC power supply (3.7V lithium battery). Can be used as a moisture and humidity collection node for intelligent home or IOT projects. characteristic: * Master: ESP-01 / ESP-01S (this module does not include ESP-01 / ESP-01S) * Temperature and humidity sensor: DHT11 * Operating voltage: DC 3.7V-12V (support 3.7v lithium battery power supply) * Measuring range: 20-90% RH 0-50 ° C * Measurement accuracy: Temperature: ± 2 °Humidity ± 5% RH Application example: 1. Power supply: 3.7V-12V DC power supply connected to VCC GND (2.54mm pin) 2. Download the program to ESP-01S 3. Insert ESP-01 / ESP-01S into the 2 * 4 Pin RGB LED Controller Module This is a WS2812 RGB LED control module based on ESP-01 / 01S. With it, you can easily control the WS2812 light bar / light ring. DIY own lightin s g control system. Support for Ard uino IDE programming.