Introducing the KeyeStudio ESP-01S WiFi Expansion Board — a powerful accessory for your ESP-01S WiFi module. Upon powering on, the module automatically enters BOOT flash mode, allowing you to test AT commands directly via the serial port on the shield.
To burn firmware, simply press and hold the Flash button on the shield, then initiate the burning process in the software interface and press the RST button. Once you release the Flash button, the module will enter download mode and begin the firmware update seamlessly.
Unlock the full potential of your ESP-01S with the KeyeStudio ESP-01S WiFi Expansion Board for easy development and testing!
Technical Parameters
- Working voltage: DC 5V
- Working current: minimum 500mA
- Communication voltage: 3.3V
- Environmental attributes: ROHS
- Dimensions: 24mm*41.3mm*11.9mm
- Weight: 3.8g
Connection Method
| Shield | USB to Serial Module（FT232 Module） |
|---|---|
| 3.3V | 5V |
| GND | GND |
| TX | RX |
| RX | TX |
