TTGO T-Journal ESP32 카메라 보드 -OV2640, OLED, WiFI, BLE
(TTGO T-Journal ESP32 Camera Module)
개요
- 본 제품은 TTGO T-Journal ESP32 카메라 보드입니다.
- ESP32칩을 탑재하여 WiFi/BLE를 지원하며, 2메가 픽셀 OV2640 카메라, 0.91인치 OLED, 리포배터리 충전 회로를 탑재하였습니다.
- ESP32의 GPIO는 보드 양옆으로 접근가능하게 핀 패드가 나와 있으며, 장착된 CP2104 USB-Serial 컨버터를 이용하여 아두이노에서 프로그래밍이 가능합니다.
- USB 커넥터를 이용하여 전원을 공급하거나 USB 커넥터위의 배터리 커넥터에 3.7V 리튬폴리머 배터리를 연결하여 전원공급이 가능합니다.
- 리셋버튼과 GPIO 32번에 연결된 버튼이 지원됩니다.
특징
- Hardware
Chipset ESPRESSIF-ESP32-PCIO-D4 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor
FLASH QSPI flash/SRAM, up to 4 x 16 MB
SRAM 520 kB SRAM
KEY reset,IO32
dispaly 0.91 SSD1306
Power indicator lamp red
USB to TTL CP2104
Camera OV2640 2Megapixel
Steering engine analog servo
on-board clock 40MHz crystal oscillator
working voltage 2.3V-3.6V
working current about 160mA
working temperature range -40℃ ~ +85℃
size 64.57mm*23.98mm
Power Supply Specifications
Power Supply USB 5V/1A
charging current 1A
battery 3.7V lithium battery
WIFI
Standard FCC/CE/TELEC/KCC/SRRC/NCC(esp32 chip)
protocol 802.11 b/g/n/e/i (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
Bluetooth
protocol meet bluetooth v4.2BR/EDR and BLE standard
radio frequency with -98dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFH
audio frequency CVSD&SBC audio frequency
Software Specification
wifi 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