Description
USB Interface 10 Channel 12 Bit ADC Converter Data Acquisition Module STM32 USB ADC Analog to Digital Converter Module
Product Description
The STM3210 ADC module uses the internal 10 ADC resources of ST's STM32F103 series microcontroller as the sampling core, and transfers the acquired sample data to the memory through the internal DMA of STM32, which reduces the CPU load and enhances the stability of AD sampling. Accuracy, while the onboard USB to serial port chip can transfer data to the host computer.
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Feature
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1
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Onboard STM32F103C8T6 main control chip;
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2
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On-board CH340 serial port to USB chip, convenient to view AD sampling results on the PC through the USB port;
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3
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Reserved UART serial communication interface, can be connected to MCU;
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4
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Analog input channel: 10-channel single-ended input;
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5
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Sampling voltage input range: 0-3.3V;
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6
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Power supply voltage: 5V/3.3V;
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7
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Resolution: 12Bit (4096);
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8
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Board size: 50*33mm;
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Instructions for use
(1) Use on a PC
Install the USB to serial port chip CH340 driver, plug the module into the computer, INO-IN9 is connected to the sampling voltage positive, GND is connected to the sampling voltage negative (ie, common processing), open the serial debugging assistant, select the correct COM port and baud rate ( 115200), you can view the AD sampling result, the sampling result is refreshed once in 500ms, the customer can modify this time on the basis of the source code.
(2) Connect to the MCU to use
If you want to use the external MCU to obtain the sampling data directly, you can connect the 3.3V, RX, TX, and GND of the MCU to the 3.3V, TX, RX, and GND of the module. Of course, it is also possible to supply the module with 5V. The protocol for data transfer can be found by looking at the source code.
(3) About updating firmware
If the customer wants to modify the source code themselves, re-program the program. The method is as follows: Insert the module into the USB port of the computer, insert the jumper cap on the module into the 3V3 end (note that it must be plugged back to GND after the programming is completed), open the programming software FlyMcu, open the hex file, set the port number and For the relevant parameters such as the baud rate, click “Start Programming”, then use the tweezers to clamp the two ends of the capacitor C9 (equivalent to reset).
Install the USB to serial port chip CH340 driver, plug the module into the computer, INO-IN9 is connected to the sampling voltage positive, GND is connected to the sampling voltage negative (ie, common processing), open the serial debugging assistant, select the correct COM port and baud rate ( 115200), you can view the AD sampling result, the sampling result is refreshed once in 500ms, the customer can modify this time on the basis of the source code.
(2) Connect to the MCU to use
If you want to use the external MCU to obtain the sampling data directly, you can connect the 3.3V, RX, TX, and GND of the MCU to the 3.3V, TX, RX, and GND of the module. Of course, it is also possible to supply the module with 5V. The protocol for data transfer can be found by looking at the source code.
(3) About updating firmware
If the customer wants to modify the source code themselves, re-program the program. The method is as follows: Insert the module into the USB port of the computer, insert the jumper cap on the module into the 3V3 end (note that it must be plugged back to GND after the programming is completed), open the programming software FlyMcu, open the hex file, set the port number and For the relevant parameters such as the baud rate, click “Start Programming”, then use the tweezers to clamp the two ends of the capacitor C9 (equivalent to reset).
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