STM32F103C8T6 MCU Development Board
STM32F103C8T6 MCU Development Board
Hardware resources:
1. One main chip of STM32F103C8
2. SMD 8M crystal (up to 72M through internal PLL) ST official standard parameters
3. The LM1117-3.3V voltage regulator chip provides a maximum current of 800mA
4. All the way to miniUSB interface, you can power the system version, reserved USB communication function
5. Reset button
6. One standard JTAG download port, support JLink, STLink
7. BOOT select port
8.IO pin header 20pin x 2
9. 1 power indicator
10. One function indicator, used to verify the basic functions of the IO port
11. Reserved serial port download interface, easy to connect with 5V development board, use serial port to download program
12. Size: 64mm X 36.4mm
13. High-performance Epson 32768Hz crystal, the price is 10 times the price of in-line crystal, easy to vibrate
14. 20K RAM, 64K ROM, TQFP48 package
FAQ:
A: Normally 3-5 working days after payment; Special requirement orders, delivery time is negotiable.
Q: How to make sure the quality?
A:All product will be inspected by our strict QC department,warehouse,FAE,Sales before shipping.
Q:What is the warranty?
A:1-3 months to replace new items for free.
1-2 years repairing free according to different products.
Q:Do you accept OEM design?
A:Yes, we do. We can design according to your requirement, MOQ usually 1-10.
Q:Do you accept pay 30% in advance?
A:Yes, we do. We can start to prepare your goods when receive 30% payment, and send them after get the rest 70% payment.
Q:What payment terms you accept?
A:We accept Paypal, T/T, Alibaba Trade Assuarce, Western Union, Wechat, Alipay, in Cash (RMB or USD).
Pls contact us to check stock quantity,price ,lead time, E-mail: sales@cmhk-ic.com
1. The maximum current is 2.5A.
2. Up to 32 subdivisions are supported.
3. 4-layer PCB board, better heat dissipation performance.
4. The chip has lower internal resistance, lower heat generation and better heat dissipation.
parameter:
Size: 1.5mmX2mm (same as 4988)
Driven current: 2.5A
Subdivision: 1, 1/2, 1/4, 1/8, 1/16, 1/32
Manufacturing process: SMT placement machine manufacturing, non-manual welding, higher yield, more stable performance
Suitable for:
Where the stepper motor needs to be driven.
It is a necessary module for building 3d printer, cnc, engraving machine and so on.
Supported 3D printers include Prusa Mendel, ultimaker, printbot, makerbot, etc.
You can refer to the following Ardu code to directly drive the motor
DRV8825 features the following points:
1. Suitable for driving stepper motor below 8.2V ~ 45V 2.5A;
2. Only simple step and direction control interface;
3. Six different stepping modes: full, half, 1/4, 1/8, 1/16, 1/32;
4. The adjustable potentiometer can adjust the maximum current output to obtain a higher step rate;
5. Automatic current attenuation mode detection / selection;
6. Overheat shutdown circuit, undervoltage lockout, cross current protection;
7. Ground short circuit protection and load short circuit protection
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