The FRDMCD1020EVM Evaluation Board (EVB) features the CD1020, a 22-channel switch detection interface with a programmable wetting current.
With the vigorous development of national real estate construction and the increase in construction projects, the problem of dust pollution caused by construction has become increasingly serious. In order to effectively and quickly monitor the dust conditions at the construction site, we use a hardware platform to collect dust PM2 at the construction site. 5/pm10 content information, the dot matrix screen displays the content information on site, and transmits the pm particulate matter (PM10/PM2.5) content information to the China Mobile OneNet platform through the GPRS network, and the dust regulatory authorities can view the dust content information through the platform. And it can be viewed through the mobile phone, which greatly facilitates the monitoring and control of dust pollution.
The GD32F350 development board uses the latest ARM Cortex-M4 32-bit general-purpose microcontroller GD32F350RB launched by GigaDevice. This chip comes with a 2-way comparator and is very suitable for making a low-cost digital capacitance meter.
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