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1. STM32F103RCT6: the high performance STM32 MCU in LQFP64 package which features * Core: ARM Cortex-M3 32-bit RISC; * Operating Frequency: 72MHz, 1.25 DMIPS/MHz; * I/Os: 51; * Operating Voltage: 2-3.6V; * Memories: 256kB Flash, 48kB RAM; * Communication Interfaces: 2 x SPI, 5 x USART, 2 x I2S, 2 x I2C, 1 x SDIO, 1 x USB, 1 x CAN; * AD & DA converters: 3 x AD(12-bit, 1s, shares 16 channels); 2 x DA(12-bit); * Debugging/Programming: supports JTAG/SWD (serial wire debug) interfaces, supports IAP; 2. AMS1117-3.3V: 3.3V voltage regulator; 3. Power supply switch: 5V DC or USB; 4. Power indicator; 5. LEDs: Convenient for indicating I/O status or program debugging running state; 6. Reset button; 7. User key; 8. Joystick: Convenient for I/O input (five positions); 9. 32.768K crystal oscillator: used for internal RTC, also supports clock calibration; 10. 8M crystal oscillator: enables the MCU run at 72M frequency by frequency multiplication; 11. SDIO Interface: connects to the Micro SD adapter easily, It is much faster to read/write the Micro SD card via SDIO than via SPI; 12. 8-Bit I/O Interface: easily connects to keypad, motor, etc; 13. CAN Interface: communicates with accessory boards which feature the CAN device conveniently; 14. SPI1 / SPI2 interface: * Easily connects to SPI peripherals such as FLASH (AT45DBxx), SD card, MP3, etc.; * Convenient for connecting AD, DA module, thanks to the SPI1 alternative function - AD&DA; 15. I2C1 / I2C2 interface: easily connects to I2C peripherals such as I/O expander (PCF8574), EEPROM (AT24Cxx), etc.; 16. LCD Interface: easily connects to the touch screen LCD; 17. ONE-WIRE Interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc. 18. PS/2 Interface: easily connects to PS/2 keyboard or mouse; 19. USART1 Interface: easily connects to RS232, RS485, USB TO 232; 20. USART2 Interface: easily connects to RS232, RS485, USB TO 232; 21. USB Port: USB communication between board and PC; 22. 5V DC jack; 23. 5V/3.3 V power input/output: usually used for power output, or common ground with other user board; 24. MCU pins connector: all the MCU pins are accessible on expansion connectors for further expansion; 25. JTAG/SWD interface: for debugging/programming; 26. Boot Mode Selection: for configuring the BOOT0 and BOOT1 pins. -
Input voltage: 5-40V;Output voltage: 1.2-30V adjustable，1.2-30V fixed output Output Current: 12A MAX (rated 8A, peak 12A) 100W enhance heat dissipation of up to 200W,Working temperature: -40 to 85 degrees Operating frequency: 180KHz;Conversion efficiency: up to 95% Short circuit protection: Yes (limit current 12A) Overtemperature protection: (automatically shut off the output after overtemperature) Input Reverse Polarity Protection: None Installation: four 3mm screws (not included) Connection: terminals, solderless, V-IN is the input, V-OUT is the output, with wire output module housing. Module size: 50mm * 50mm * 18mm Application: This module can be used in batteries, power transformers, DIY adjustable power supply, 24V car T of the power supply, automotive LED lights with power, industrial Buck equipment, 12V t- 3.3V, 12V - 5V, 24V - 5V , 24V -12V, etc. Package Included：1 x Buck Converter Module Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is /- 1-3 cm.
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