Hexamite
Hx19
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Using the Serial Output pin HX19R version 2.4 and above
Distance data is available on a serial output wire from the hx19receiver. This feature allows the user to read
broadcasted data as it streams directly from the receiver through a wire. The serial output has a TTL format, i.e.
inversed RS232 and the baud rate is 250Kbaud. Identification of the receiver and tag, plus the distance from the
receiver to tag comes streaming through this port pin (wire). For hx19 devices this wire is typically the fourth
from the ground wire on the ribbon cable.
Many devices are available that can utilize TTL serial data, FTDI serial to USB is very common and available
device that turns a USB port into a COM port or a serial port. The hx19 devices interface directly to this device.
TTL-RS232R_PCB
Mouser part number: 895-TTL-232R-5V-PCB
Farnell part number: 1740366
The ground or negative reference on the hx19receiver usually closest to the edge of the micromatch plug
connects directly to the GND pad (soldered one). VCC pad is soldered to the third wire counting the ground
wire as number one. The fourth wire from the ground is the serial output, and it is soldered directly to the
RXD pad.
FTDI devices are very common and available, and will interface many operating systems to COM I/O.
Whatever devices used, make sure they are able to read 3.2V signals.
Hx19access is really just a simple terminal program; it can be used to read both data that comes from the
hx19ms through RF wireless and data coming through hx19r wire simultaneously. The hx19ms uses FTDI
drivers too. E.g. plug the hx19ms into a USB port and set the port to COM5, plug the hx19r wire interface into
another USB port and set it to COM3. Then put a hx19access.exe into a directory holding port.txt file
containing 5 (port number), and put another hx19access.exe into a separate directory holding port.txt file
containing 3 (port number). Then run both hx19access.exe, and both privately wired and wireless network
data should be visible.