ESP-01S wireless transparent transmission industrial ESP8266 serial port to WiFi module

Ai-Thinker ESP-01S ESP8266 Wi-Fi Module

ESP-01S is a compact 2.4 GHz 802.11 b/g/n Wi-Fi module based on the ESP8266 platform. Its DIP-8 layout and onboard PCB antenna make it suitable for adding serial Wi-Fi connectivity to embedded controllers and compact IoT hardware.

Verified Module Features

• 32-bit processor with supported clock rates of 80 MHz and 160 MHz.
• UART, GPIO and PWM interfaces.
• Integrated Wi-Fi MAC, baseband, RF front end, power amplifier and low-noise amplifier.
• STA, AP and combined STA + AP operating modes.
• SmartConfig/AirKiss provisioning, AT-command operation and local or FOTA firmware updates.

Integration Notes

• Use a stable 3.3 V supply with sufficient transient-current capacity; do not connect the module directly to 5 V logic or power.
• Confirm the boot-state requirements for GPIO0, GPIO2, EN and reset before programming or normal startup.
• A USB-to-UART programmer is required when the host system does not provide a suitable programming interface.
• This listing is for the ESP-01S module shown; programmer boards, relay boards and other accessories are included only when explicitly selected.