ESP8266 ESP-01S 1MB Module Serial WIFI Wireless Transceiver Send Receive Board

Product description: brand new and high quality Made of high-quality materials durable About the program: Please select the Generic ESP8285 Module board in the For Arduino IDE for programming. Compared with esp-01 esp-01s has the following advantages: PCB layout has been changed to improve WiFi radio performance 4MB flash memory...upgrade from 512KB The latest version esp-01s with stronger signal SDIO 2.0 SPI UART 32-pin QFN package Wi-Fi Direct (P2P) soft AP Integrated TCP/IP protocol stack Integrated TR switch balun LNA power amplifier and matching network Integrated PLL voltage regulator DCXO and power management unit + 19.5dBm output power in 802.11b mode Power-down leakage current