[i=s]This post was last edited by lugl4313820 on 2022-3-31 22:35[/i]I happened to see a free evaluation activity in the technical group, so I tried to apply for the evaluation of the development board
ThinkPad notebooks have always been favored by enterprises and individual users. In addition to their good stability, durability and comfort, some personalized hardware design and matching software ar
Our company is sincerely recruiting part-time patent engineers in the fields of electromechanical, electronics, and automation. Experience in writing technical briefing documents for invention patents
The company's board is, 485 communication, using stm32f103re, USART1 communication, 485 uses port GPIOA PIN11, USART_RX corresponds to GPIOA PIN10, USART_TX corresponds to GPIOA PIN9I don't know why,
As shown in Figure 1, the constant current source composed of an op amp and a MOS tube, adjusting the resistance of resistor R4, changes the voltage value of pin 3 of op amp U1A (not greater than 2V),