<p>Features: 1. Module Body ESP-WROOM-32 Module,</p> <p>2. The Usb To Serial Port Chip Cp2102 Is Used Peripherally To Extend The Micro-usb Interface, Which Can Be Directly Connected To The Computer Via Usb For Debugging.</p> <p>3. Data Transmission Is Fast And Stable.</p> <p>4. Adopts A Of Wifi \u0026 Bluetooth Dual-Mode Dual-Core Wireless Communication Module, Which Integrates Bluetooth 4.2 And Wifi Transmission.</p> <p>5. This Module Is Equipped With An 18650 Battery Holder, Which Can Be Powered By The Battery Or Charge The Battery, And Is Equipped With A Temperature And Humidity Sensor.</p> <p>Description: </p> <p>1. Power Supply Voltage: DC3.6V~5V (Micro-Usb Port 5v Input)</p> <p>2. 18650 Battery Holder And Integrated Carp Battery Charging And Discharging Circuit</p> <p>3. The Module Can Work While Charging The Battery</p> <p>4. Wi-Fi Protocol: 802.11 B\/G\/D\/E\/I\/K\/R (802.11N, To 150 Mbps), A-Mpdu And A-Msdu Aggregation, Support 0.4us Protection Interval</p> <p>5. Wi-Fi Standards: FCC\/CE\/Telec\/KCC</p> <p>6. Frequency Range: 2.4-2.5 GHZ</p> <p>7. Bluetooth Protocol: Complies With Bluetooth V4.2 BR\/ And BLE Standards</p> <p>8. Bluetooth Audio: CVSD And Audio</p> <p>9. Temperature And Humidity Sensor</p> <p>10. Red, Green And Blue Indicator Lights</p> <p>Note: </p> <p>Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use</p> <p>Material: PCB</p> <p>colour: As Shown</p> <p>Package Contents: </p> <p>2 x Soil Temperature And Humidity Module</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>