Wishiot 2pcs Esp8266 Esp-01 USB Adapter Programmer + 5pcs ESP8266 ESP-01S WiFi Module 4MB Wireless Serial Transceiver

ESP8266 ESP-01S serial WiFi wireless transceiver module used 4MB Flash, not 1MB flash
USB Programmer selectable working mode: On-board toggle switch. UART side for serial TTL debugging by AT commands, PROG for firmware programming
Programmer USB to serial TTL chip: CH340G, please check if your computer has installed the driver before use it
ESP-01 serial wifi module can be directly plugged into the yellow pin header of the USB programmer module without any connection wires
What you will get: 5pc ESP-01S 4MB wifi module + 2pc USB programmer ESP-01S adapter module. If you have any question, please feel free to contact us by clicking " WISHIOT" under the shopping cart (you can find Sold by WISHIOT under Buy Now button) and then clicking " Ask a question"