Wemos D1 Mini ESP-07S

Features / Specs Main Module: ESP-07S / ZY-07S (Not original Ai Thinker) Main IC: Espressif ESP8266EX USB to UART IC: WCH CH340C External Flash Memory: 4-MB (32-Mbit) Supply Voltage: 5VDC / 3.3VDC Operating Voltage: 3.3VDC Clock Speed: 80MHz / 160MHz Digital I/O Pins: 9 Available Peripherals: UART / GPIO / ADC / PWM USB Connector: Female USB Type-C Socket Antenna Connector: IPEX MHF-I Male Connector Header Pin Pitch: 2.54mm Header Pin Row Spacing (Center to Center): ~22.86mm Dimensions: ~(36mm x 25.8mm x 7.8mm) WiFi Protocols: 802.11 b/g/n Operating Frequency Range: 2400 – 2483.5MHz Hardware Features: UART / HSPI / I2C / I2S / IR Remote Control / GPIO / PWM RF Features: Integrated TR switch, balun, LNA, power amplifier and matching network Network Features: Integrated TCP/IP protocol stack Wireless Network Modes: Station / SoftAP / SoftAP Station WiFi Security Modes: WEP / WPA-PSK / WPA2-PSK Resources Ai Thinker ESP-07S Datasheet v1.0 Espressif ESP8266EX Datasheet Espressif Technical Documents Page Sparkfun CH340 Driver Install Guide