TTGO 868 MHz Shield ESP32 WiFi Bluetooth 18560 Battery Holder Solar Charge Module Development Board
TTGO 868 MHz Shield ESP32 WiFi Bluetooth 18560 Battery Holder Solar Charge Module Development Board
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Description
The TTGO 868 MHz Shield ESP32 WiFi Bluetooth 18560 Battery Holder Solar Charge Module Development Board is a development board designed for wireless communication projects. It is suitable for applications requiring WiFi and Bluetooth connectivity, such as IoT devices and remote monitoring systems.
- Main Chip: ESP32
- Module: ESP32-WROVER-B, 868 MHz Shield
- Interfaces: USB, SD Card, Solar Input
- Flash Memory: 4M Flash, 8M PSRAM
- Buttons: Reset, Power Switch
- USB to TTL: CP2104
- Car Clock: 40MHz
- SIM Card Size: Nano SIM Card
- SIM Antenna: Included
- GPS Antenna: Included
- Operating Temperature Range: -40 to 85 degrees Celsius
- Product Dimensions: 111mm x 37mm x 20mm
- Product Weight: 50g
- Working Voltage: 5V input
- Solar Input Voltage Range: 4.4V - 6V
- Working Current: Approximately 200mA
- Charging Current: 780mA
- Battery Model: 18650
- Battery Holder Model: 18650 Battery Holder
- JST Connector: 2-pin, 2mm
- USB: Type-C 3.0
- Wi-Fi Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
- Wi-Fi Protocol: 802.11 b/g/n (802.11n speed up to 150Mbps)
- Wi-Fi Frequency Range: 2.4GHz - 2.5GHz (2400M - 2483.5M)
- Wi-Fi Transmit Power: 22dBm
- Wi-Fi Communication Distance: 300m
- Bluetooth Protocol: v4.2 BR/EDR and BLE standard
- Bluetooth Radio Frequency: -97dBm sensitivity NZIF receiver, Class-1, Class-2 & Class-3 emitter AFH
- Audio Frequency: CVSD & SBC audio frequency
- Wi-Fi Modes: Station, SoftAP, SoftAP+Station, P2P
- Security Mechanism: WPA/WPA2/WPA2-Enterprise/WPS
- Encryption Types: AES, RSA, ECC, SHA
- Firmware Upgrade: UART download, OTA through network, host to download and write firmware
- Software Development: Supports cloud server development, SDK for user firmware development
- Networking Protocols: IPV4, IPV6, SSL, TCP/UDP/HTTP/FTP/MQTT
- User Configuration: AT + Instruction set, cloud server, Android/iOS APP
- Operating System: FreeRTOS
- Version Update Functions: Overcharge and over-discharge protection, GPS power control, solar charging IC replacement
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