product manual:
1. Power input terminal, input voltage range 5.5V - 12V (5V
power supply, please connect directly to 2);
2. 5V power supply input terminal (1.2 two power supplies, only
one can be connected);
3. STM32F103C8T6 leads GPIO, which is convenient for
secondary development. The silk screen
directly corresponds to the pin number of the chip;
4. Brand new original master MCU: STM32F103C8T6;
5. 2.5V benchmark, ultra-high precision, low temperature drift;
6. Adjustable potentiometer, the output adjustable voltage is
linked to AIN0/ I0;
7. Collect 8 channels of input, I0-I7 is connected to the positive terminal of the acquisition voltage,
G is the analog ground, and the negative terminal of the acquisition voltage is connected;
8. Input filter and attenuation resistor, default is not attenuated, leaving the position of solder
attenuation resistor, 0603 package;
9. ADS1256IDB acquisition chip, new original imported;
10. Power indicator LED;
11. JTAG interface, designed according to JLINK-V8 or V9 definition;
12. STM32F103C8T6 reset button;
13. USB to TTL wiring, corresponding to the MCU's TX, RX, GND, can communicate directly
with the computer;
14. Original imported 3232 serial communication chip;
15. Serial port header, female head;
16. Adjustable potentiometer output voltage to I0 / AIN0 on/off control: Disconnect IO floating,
connect I0 to measure adjustable potentiometer output voltage terminal;
17. STM32 BOOT0 and BOOT1 select control jump caps;
Description:
It is a 24Bit ADS1256 ADC Converter Analog Signal Collector STM32F103C8T6 Controller.
Feature:
1>.ADS1256 24-bit AD High-precision acquistion
2>.Good material durable
3>.Easy to install and use
Parameter:
1>.Chip model: STM32F103C8T6 (microcontroller), ADS1256 (24 bit Precision AD conversion chip)
2>.Power supply voltage: onboard 5V and 3.3V voltage regulator components, 9V external direct Current
powersupply, the power supply has the function of preventing reverse connection
3>.Crystal frequency: 8MHZ, 9 times the frequency inside the chip, working frequency 72MHZ
4>.Work Temperature: -25℃~85℃
5>.Work Humidity: 5%~95%RH
6>.Size:82.8*53.4*1.6mm
Application:
1>.Suitable for collage students, engineers, technicians, factory personal DIY, electronic enthusiasts and
other opertions.
5.8 channel (24 bit) A/DC conversion board hardware features:
1>.This board has led out all the lO ports of the STM32F103C8T6microcontroller, Users can re-develop the
functions they need;
2>.You can download the program through the serial port, see the instruction file for the specific method.
Because it can Download the program through the serial port, so there is no JLINK download and debug
interface on the board;
3>.The reference voltage of the AD chip is 2.5V, which is generated by a precision voltage regulator
device;
4>.There is a potentiometer on the board to test the AD input. This potentiometer is divided by voltage.The
generated voltage is connected to AN0 through the S3 jumper, which is suitable when there is no sensor
Debug
the board under the circumstances. If you don' t need this test, you can take the S3 jumper If the test
voltage is turned off, input the test voltage directly from AN0--AN7. (Input to AD input The voltage of the
terminal cannot be higherthan5V).