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Custom TTGO T7 V1.5 Mini32 ESP32-WROVER-B PSRAM Wi-Fi Module Development Board Custom PCB pcba controller water dispenser Manufacturer
Custom TTGO T7 V1.5 Mini32 ESP32-WROVER-B PSRAM Wi-Fi Module Development Board Custom PCB pcba controller water dispenser Manufacturer
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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 |
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| Working temperature range | -40℃ ~ +85℃ |
| Size&weight | 40.27mm*31.07mm*8.13mm(6.42g) |
| Power Supply Specifications |
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| Power Supply | USB 5V/1A |
| Charging current | 500mA |
| Battery | 3.7V lithium battery |
| Battery connector | Jst 2pin 1.25mm |
| 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 |
| Blth |
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| 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 |
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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
Shipping List
1 X TTGO Mini32 ESP32-WROVER-B
6 X Pin
1 X line
