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and battery life optimization
I2C Address: 0x73
Onboard PN532 chip
7 V lithium battery power supply
The equipment located along a set of RS-485 wires is interchangeably called nodes
STM32F750N8H6 polaris development board 2.23 inch and battery life optimizationThe board provides over ten standard interfaces, allowing convenient experimentation and development with various peripherals. We adopt a core board + baseboard form factor, where one baseboard can be used to learn multiple MCUs, reducing redundant investments. Many resources on the board can be flexibly configured to meet usage requirements under different conditions. We have brought out 112 I O ports, greatly facilitating expansion and usage. The