TTGO T-Display 4MB ESP32 WiFi Bluetooth Module 1.14 Inch Development Board for Arduino, T-Display 4MB

Hardware specifications.
1. Chipset: Espresso-ESP32 240MHz Xtensa 32-bit 32-bit 32-bit Xtensa Xtensa Microprocessor
2. Flash: QSPI Flash 4MB
3. SRAM: 520 KB SRAM
4. Button: reset
5. USB to TTL: CP2104
6. Modular interface: UART, SPI, SDIO, I2C, PWM LED, TV PWM, I2S, IRGPIO, ADC, DACLNA pre-amplifier
7. Display: 1.14 inch IPS ST7789V
8. WORKING VOLTAGE: 2.7V-4.2V
9. Working current: about 67mA
10. Sleep Current: about 350UA
11. Working temperature range: -40 degree c ~ +85 degree c
12. Size: 51.52x25.04x8.54mm
13. Weight: 7.81G

Power Specifications
1. Power supply: USB 5V / 1A
2. Charging current: 500mA
3. Battery: 3.7V lithium battery
4. JST connector: 2pin 1.25mm
5. USB: Type-C

Wifi
1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC ESP32Chip
2. Protocol: 802.11 B/G/N (802.11n, speed up to 100Mbps) A-MPDU and A-MSDU polymerization, support 0.4US protection 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: with -97DBM Sensitivity NZIF Receiver Class-1, Class-2 and Class-3 Emit AFH
3. Audio frequency: CVSD and SBC audio frequency

Software Specifications
1. Wi-Fi Mode: Station / SoftAp / SoftAp + Station / P2P
2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS
3. Encryption type: AES / RSA / ECC / SHA
4. Firmware update: Download UART/OTA (via network/host to download and write firmware)
5. Software development: Support cloud server development / SDK for user firmware development
6. Network Protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT
7. User configuration: AT+ instruction set, cloud server, Android/Iosapp
8. OS: Freertos