|
Hardware Specifications
|
|
|
Chipset
|
ESP32, dual-core MCU, PMU power management
|
|
FLASH
|
QSPI flash 16MB
|
|
SRAM
|
520 KB SRAM / PSRAM 8MB
|
|
Button
|
Power key
|
|
USB to TTL
|
CP2104
|
|
On-board clock
|
40MHz crystal oscillator
|
|
Working voltage
|
2.7V-3.6V
|
|
Working current
|
|
|
Sleep current
|
|
|
Working temperature range
|
-40℃ ~ +85℃
|
|
Weight
|
58.5g
|
|
Display:
|
1.54 inch LCD capacitive touch screen
|
|
Sensor:
|
BMA423 three-axis accelerometer, built-in step counting algorithm, activity recognition / tracking, advanced gesture recognition.
|
|
RTC clock:
|
PCF8563
|
|
Power Supply Specifications
|
|
|
Power Supply
|
Micro USB (5V/1A)
|
|
Charging current
|
The charging current is programmable and self-adjustable (default 350mA)
|
|
Battery
|
3.7V lithium battery
|
|
Wi-Fi
|
|
|
Standard
|
FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC
|
|
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
|
|
Bluetooth
|
|
|
Protocol
|
Meet bluetooth 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
|
Obs! This product will be shipped direct from vendor. This means you should anticipate longer delivery times for this product. We have experienced very long delivery times for this product before.
In return we offer free shipping on this item.
This product was added to our catalog on Saturday 12. September 2020.
