Az ESPRESSIF-WROVER-B 240MHz Xtensa® modulra épülő TTGO lapka egyszerű, olcsó wifi és bluetooth kapcsolatra képes IoT eszköz alapját képezi.
A micro USB porton, soros kommunikációval feltöltött firmwarrel azonnal csatlakoztatható a helyi WiFi hálózathoz. Ez után már webes felületről konfigurálható.
A modulhoz a csatlakozósorokat hozzá kell forrasztani!
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Main chip:ESPRESSIF-WROVER-B 240MHz Xtensa®Flash memory chip: QSPI flash 4MB / PSRAM 8MBUSB to serial port chip: CP2104
A csomagban:
1 x Alappanel
1 x Akkumuáltor kábel
2 x 10P tüskesor
2 x 10P hosszútüskés csatlakozóaljzatsor
4 x 10P rövidtüskés csatlakozóaljzatsor
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Hardware Specifications |
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| Chipset | ESPRESSIF-WROVER-B 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor |
| FLASH | QSPI flash 4MB / PSRAM 8MB |
| SRAM | 520 kB SRAM |
| Button | reset |
| Power indicator lamp | red |
| USB to TTL | CP2104 |
| Modular interface | UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、capacitor touch sensor、ADC、DACLNA pre-amplifier |
| On-board clock | 40MHz crystal oscillator |
| Working voltage | 2.7V-3.6V |
| Working current | about 30mA |
| Sleep current | 10uA |
| Working temperature range | -40℃ ~ +85℃ |
| Size&weight | 40.27mm*31.07mm*8.13mm(6.42g) |
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Power Supply Specifications |
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| Power Supply | USB 5V/1A |
| Charging current | 500mA |
| Battery | 3.7V lithium battery |
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Wi-Fi |
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| Standard | FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC(esp32 chip) |
| Protocol | 802.11 b/g/n(802.11n，speed up to150Mbps)A-MPDU and A-MSDU polymerization，support 0.4μS Protection interval |
| Frequency range | 2.4GHz~2.5GHz(2400M~2483.5M) |
| Transmit Power | 22dBm |
| Communication distance | 300m |
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Bluetooth |
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| Protocol | meet bluetooth v4.2BR/EDR and BLE standard |
| Radio frequency | with -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH |
| Audio frequency | CVSD&SBC audio frequency |
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Software Specification |
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| Wi-Fi Mode | Station/SoftAP/SoftAP+Station/P2P |
| Security mechanism | WPA/WPA2/WPA2-Enterprise/WPS |
| Encryption Type | AES/RSA/ECC/SHA |
| Firmware upgrade | UART download/OTA（Through network/host to download and write firmware） |
| Software Development | Support cloud server development /SDK for user firmware development |
| Networking protocol | IPv4、IPv6、SSL、TCP/UDP/HTTP/FTP/MQTT |
| User Configuration | AT + Instruction set, cloud server, android/iOSapp |
| OS | FreeRTOS |
Pin Reference Description
