i'm investigating adding 3 new uart sensors project. each provide 3.3v uart interfaces. _believe_ rpi has single uart / serial port 1 of device can connected due lack of multiplexing / addressing in serial line rs232 "protocol".
plug these usb adaptors solve problem, they're a+ (or a3
), 1 usb port, , don't want usb hub space if very limited. devices mapping i2c seem hens teeth - in first page in google goes other way (i2c slave uart 
)
there other options?
fyi - devices gps , 2 lidars 3d range finding.
plug these usb adaptors solve problem, they're a+ (or a3
), 1 usb port, , don't want usb hub space if very limited. devices mapping i2c seem hens teeth - in first page in google goes other way (i2c slave uart )there other options?
fyi - devices gps , 2 lidars 3d range finding.
pigpio allows bit banged serial on arbitrary gpio. less 19.2kbps should okay. reading trivial,e.g. http://abyz.co.uk/rpi/pigpio/python.html#bb_serial_read. writing more complicated, e.g. http://abyz.co.uk/rpi/pigpio/python.htm ... add_serial.
raspberrypi
Comments
Post a Comment