Description
Hardware Specifications:
ChipsetESP32, dual-core MCU, PMU power managementFLASHQSPI flash 16MB SRAM 520 kB SRAM / PSRAM 8MBButtonpower key , IO36Extended function USB to TTLCP2104Modular interfaceUART, SPI, SDIO, I2C, LED PWM , PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA On-board clock40MHz crystal oscillator Working voltage2.7V-3.6VWorking currentabout 70mABattery capacity180mASleep currentabout 3mAWorking temperature -40? ~ +85?Size & Weight46.47 x 43 x 20.4mm , 43.19gDisplay1.54 inch LCD capacitive touch screenSensorBMA423 three accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition.RTC clockPCF8563
Power Supply Specifications:
Power SupplyUSB 5V/1ACharging currentCustomizable programmingBattery3.7V lithium battery
Wi-Fi:
StandardFCC/CE-RED/IC/TELEC/KCC/SRRC/NCCProtocol802.11 b/g/n(802.11n, speed up to150Mbps) A-MPDU and A-MSDU polymerization, support 0.4?S Protection intervalFrequency2.4GHz~2.5GHz(2400M~2483.5M)Transmit Power22dBmCommunication distance300mBluetooth ProtocolMeet bluetooth V4.2 BR/EDR and BLE standardRadio frequencywith -97dBm sensitivity NZIF receiver Class-1,Class-2&Class-3 emitter AFHAudio frequencyCVSD&SBC audio frequency
Software Specifications:
Wi-Fi ModeStation/SoftAP/SoftAP+Station/P2PSecurity mechanismWPA/WPA2/WPA2-Enterprise/WPSEncryption Type AES/RSA/ECC/SHAFirmware upgradeUART download/OTA (Through network/host to download and write firmware)Software DevelopmentSupport cloud server development /SDK for user firmware developmentNetworking protocolIPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTTUser ConfigurationAT + Instruction set, cloud server, android/iOSappOSFreeRTOS
