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WiFi+BT+BLE MCU dual mode
HLK-ESP32 is a general-purpose Wi-Fi+BT+BLE MCU module with powerful functions and a wide range of uses. It can be used for low-power sensor networks and demanding tasks, such as voice encoding, audio streaming and MP3 decoding, etc. .
The core of the module is the ESP32 chip, which is scalable and adaptive. The two CPU cores can be controlled separately. Clock frequency adjustment The knot range is 80 MHz to 240 MHz. The user can cut off the power of the CPU and use the low-power coprocessor to continuously monitor the status changes of the peripherals or whether certain analog quantities exceed the threshold. ESP32 also integrates a wealth of peripherals, including capacitive touch sensors, Hall sensors, low-noise sensor amplifiers, SD card interfaces, Ethernet interfaces, high-speed SDIO/SPI, UART, I2S, and I2C.
HLK-ESP32 integrates traditional Bluetooth, Bluetooth low energy and WiFi, and has a wide range of uses: WiFi supports a wide range of communication connections, and also supports direct connection to the Internet through a router; Bluetooth allows users to connect to mobile phones or broadcast BLE Beacon for convenience Signal Detection. HLK-ESP32 supports a data transmission rate of up to 150 Mbps, after passing through a power amplifier and antenna, the output power can reach 20.5 dBm, which can achieve the widest range of wireless communication.
The operating system of ESP32 is freeRTOS with LwIP, and TLS1.2 with hardware acceleration is built-in. The chip also supports OTA encryption upgrades, and developers can continue to upgrade after the product is released.
WiFi parameters | |
Network protocol | 802.11b/g/n/e/i |
Wireless transmission rate | 11n: up to 150Mbps |
Frequency Range | 2.412-2.484G |
Bluetooth parameters | |
Network protocol | Bluetooth V4.2 BR/EDR and BLE standards |
Radio frequency | NZIF receiver Class-1, Class-2 and Class-3 transmitter AFH with -97 dBm sensitivity |
Audio | CVSD and SBC audio |
Hardware parameters | |
Module interface | SD card/UART/SPI/SDIO/I2C/LED PWM/motor PWM/I2S/IR GPIO/capacitive touch sensor/ADC/DAC/LNA preamplifier |
On-chip sensor | Hall sensor, temperature sensor |
On-board clock | 40MHz crystal oscillator |
Working voltage/supply voltage | 2.7V~3.6V |
Working current | Average 80mA |
Supply current | 500mA minimum |
range of working temperature | -40℃~+85℃ |
Ambient temperature range | Normal temperature |
Package size | 18x25.5x2.8mm |
Software parameters | |
WiFi mode | Station/SoftAP/SoftAP+Station/P2P |
WiFi security mechanism | WPA/WPA2/WPA2-Enterprise/WPS |
Encryption type | AES/RSA/ECC/SHA |
Firmware upgrade | UART download/OTA (download and write firmware via network or host) |
Software development | Support cloud server development/SDK for user firmware development |
Network protocol | IPv4, IPv6, SSL, TCP/UDP/HTTP/ FTP/MQTT |
User configuration | AT+ command set, cloud server, Android/iOS APP |