TTGO T7 V1.5 Mini32 ESP32-WROVER-B PSRAM Wi-Fi Module Development Board Custom PCB pcba controller water dispenser
Note: The difference between T7 V1.4 changed to V1.5: GPIO has replaced the position, we replaced GPIO16 and GPIO17 two pins that can no longer be used for external expansion with GPIO25 and GPIO27 that can be used with defined functions, so that they can be compatible with those of miniD1 The expansion board is not affected by the original GPIO16 and GPIO17 pins. Hardware Specifications Chipset ESPRESSIF-WROVER-B 240MHz Xtensa® single-/dual-core 32-bit LX6 microprocessor FLASH QSPI flash 4MB 16MB / PSRAM 8MB SRAM 520 kB SRAM Button reset Modular interface UART、SPI、SDIO、I2C、LED PWM、TV PWM、I2S、IRGPIO、ADC、DACLNA pre-amplifier On-board clock 40MHz crystal oscillator Working voltage 2.7V-3.6V Working current about 30mA Working temperature range -40℃ ~ +85℃ Size&weight 40.27mm*31.07mm*8.13mm(6.42g) Power Supply Specifications Power Supply USB 5V/1A Charging current 500mA Battery 3.7V lithium battery Battery connector Jst 2pin 1.25mm Wi-Fi 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 Blth Protocol meet blth 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 Software Specification 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 Shipping List 1 X TTGO Mini32 ESP32-WROVER-B 6 X Pin 1 X line