DIYmall ESP8266 ESP-01S WiFi Serial Transceiver Module with Flash 1MB / 4MB with SPI Mode DOUT

Note: regarding program: Please choose  "Generic ESP8285 Module" board in Arduino IDE  to program it.

Also note that ESP-01S is DOUT protocol. When you program it, the SPI Mode please choose DOUT.

Description:

comparing to esp-01, esp-01s has these advantages:
The PCB layout has changed for an improvement in WiFi radio performance
1MB Flash Memory...upgraded from 512KB
Latest version esp-01s,with stronger signal

Feature:

    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 PLLs, regulators, DCXO and power management units
    +19.5dBm output power in 802.11b mode
    Power down leakage current of <10uA
    Integrated low power 32-bit CPU could be used as application processor
    SDIO 1.1/2.0, SPI, UART
    STBC, 1×1 MIMO, 2×1 MIMO
    A-MPDU & A-MSDU aggregation & 0.4ms guard interval
    Integrated RF switch, balun, 24dBm PA, DCXO, and PMU
    Integrated RISC processor, on-chip memory and external memory interfaces
    Integrated MAC/baseband processors
    Quality of Service management
    I2S interface for high fidelity audio applications
    On-chip low-dropout linear regulators for all internal supplies
    Proprietary spurious-free clock generation architecture
    Integrated WEP, TKIP, AES, and WAPI engines

Specification:

    802.11 b/g/n
    Wake up and transmit packets in < 2ms
    Standby power consumption of < 1.0mW (DTIM3)

Document link: https://nurdspace.nl/ESP8266

Package Included:

Option 1: 1 X ESP8266 ESP-01S Module (Flash 1MB)

Option 2: 1 X ESP8266 ESP-01S Module(Flash 4MB, XMC 0H32BHIG)

UNO R3 board and breadboard with jumper wires not included, you can buy through related links.