Description The ESP-12S carries on the excellent design of its predecessor, maintaining consistent packaging, pin definitions, dimensions, and more with the ESP-12 series, allowing for seamless integration into existing products and eliminating the hassle and cost of revising designs, creating prototypes, and conducting retests. Drawing on design experience from previous generations and rethinking every aspect, it pursues quality in every detail, including impedance matching, routing angles, distances, widths, via drilling, copper pour methods, and more. After meticulous consideration of the module’s craftsmanship and details, and exhaustive attention to every related design detail, real-world usage by numerous customers has demonstrated significant improvements in product stability, anti-interference capabilities, and transmission distance! Ultimately, it has obtained FCC and CE certifications from SGS, an authoritative certification body designated by the EU, clearing the way for exports to Europe, the United States, and other “foreign” markets, while also confirming the module’s excellent RF performance. Friendly Reminder: With built-in cloud service functionality, you can access global remote control with just three commands! Please take note! Free cloud service is provided; Supports AT commands to set the high/low level of IO ports; Supports AT commands to read IO port levels; Supports AT commands to read ADC voltages; Supports AT commands to upgrade to the latest official version of Espressif; Supports AT commands to set the HOST NAME displayed on the computer; Supports executing AT commands over a wireless network; Supports direct APP control functionality after power-on in subsequent versions. Product Basic Parameters: Operating Voltage: 3.0-3.6V (3.3V recommended) Operating Current: Average of 80mA Frequency Range: 2.4G-2.5G (2400M-2483.5M) External SPI Flash Capacity: 4MB Product Pin Definitions and Functions: Product Dimension Diagram: Product Schematic Diagram:
