Main Features:<br />On-board STM32F103VCT6 chip <br />With on-board JTAG interface and reset button<br />On-board 32.768KHZ and 8MHZ oscillator<br />With AMS1117-3.3 chip that 5V to 3.3V<br />With one set of RS232 serial ports， UART1 and UART2 can be set by jumper wire<br />All I/O are led and marked<br />Power supply: USB and JLink Power On<br /><br />    Specifications<br />General<br />	 Type: Development board                                                  <br />                        Model: ARM Cortex-M3                                                  <br />                        Material: CCL + components                                                	<br />Weight and Size<br />	 Product Weight: 0.045 kg                                                  <br />                        Package Weight: 0.115 kg                                                  <br />                        Product Size(L x W x H): 10.5 x 7.1 x 1.5 cm / 4.13 x 2.79 x 0.59 inches                                                  <br />                        Package Size(L x W x H): 13 x 9 x 3 cm / 5.11 x 3.54 x 1.18 inches                                                	<br />Package Contents<br />	 Package Contents: 1 x Development board                                                	<br /><br /><br /><br />                                                                                            <br />