The Ai-Thinker NodeMCU-PB-03F-Kit Development Board is a BLE5.0 development board that is based on the PB-03F transceiver. It has an integrated radio frequency transceiver, PA, radio frequency filter, antenna switch and power management. It has excellent communication performance and stability in various wireless environments. It supports up to BLE 5.2 protocol, supports Sig Mesh, supports Tmall Genie/APP voice control, supports Amazon Alexa Echo audio control. The half hole pad can guide the antenna to the main board, and the antenna hole can directly weld the spring antenna on the module. 

Characteristic

• BLE5.0 development board based on the PB-03F transceiver
• Integrated radio frequency transceiver, PA, radio frequency filter, antenna switch and power management
• Excellent communication performance and stability in various wireless environments
• Supports up to BLE 5.2 protocol, supports Sig Mesh, supports Tmall Genie/APP voice control, supports Amazon Alexa Echo audio control
• Half hole pad can guide the antenna to the main board and the antenna hole can directly weld the spring antenna on the module
• Supports broadcast expansion, multi-broadcast, channel selection
• Support BLE5.2, rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps
  
• Own 64 KB SRAM, 256KB flash, 96 KB ROM, 256bit efuse
• Support UART/GPIO/ADC/PWM/I2C/SPI/PDM/DMA interface
• Support multiple sleep modes, deep sleep current is less than 1uA
• Support for serial local upgrade and remote Firmware upgrade(FOTA)
• Universal AT commands can be used easy and quickly
• Support for secondary development, with an integrated Windows development environment.