I use msp430f149 and HC-SR501 to control the LED controlled by PWm of the microcontroller. After testing HC-SR501, it sometimes works and sometimes doesn't, and the LED cannot be controlled normally.
[i=s]This post was last edited by jameswangsynnex on 2015-3-3 19:59[/i] Our company's latest research and development of alcohol, CO, breath test module can be attached to mobile phones, GPS, MP3 and
I found the following problem when porting the camera module from the 2.6.20 kernel to the 2.6.28 kernel. The code can run normally in the 2.6.20 kernel. Is there a change in the writing method of I2C
I have some questions about using CAN_RAW_ERR_FILTER when programming with SOCKET CAN. I use a USB to CAN bus receiving box to connect to the development board. It can communicate normally. If CANL or
Dear forum friends, I recently made a board to test the capacitance of capacitors. It uses constant current charging, the voltage change is given, and the capacitance is calculated through time. Now t