1. Chipset: ESP32
2. Flash 4MB
3. SRAM 520 kB SRAM
4. Button: Power on, reset
5. USB to TTL: CP2104
6. Car clock: 40MHz crystal oscillator
7. Display: SSD1306 / 0.96 inch Oled
8. Antenna: Onboard ceramic antenna/expandable antenna interface
9. Operating voltage 2.7V to 3.6V
10. Working temperature range: -40 degree C ~ +85 degree C
11. Size 29.5 x 23 x 8mm
12. Weight 4.5g
Power Specifications
1. Power input: USB 5V / 1A
2. USB: Type C
WiFi
1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (esp32 chip)
2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval
3. Frequency range: 2.4GHz~2.5GHz(2400M~2483.5M)
4. Transmit Power: 22dBm
5. Communication distance: 300m
Bluetooth
1. Protocol: Meet bluetooth v4.2BR/EDR and BLE standard
2. Radio frequency: NZIF receiver Class-1, Class-2&Class-3 transmitter AFH with sensitivity of -97dBm
3. Audio frequency: Audio CVSD&SBC audio frequency
Software specification
1. WiFi Mode: Station/SoftAP/SoftAP+Station/P2P
2. Security mechanism: WPA/WPA2/WPA2-Enterprise/WPS
3. Encryption Type: AES/RSA/ECC/SHA
4. Firmware upgrade:UART download/OTA (download and write firmware via network/host)
5. Software Development: Support cloud server development/SDK for user firmware development
6. Networking protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT
7. User Configuration: AT + Instruction set, cloud server, android/iOS app
8. OS: FreeRT OS