BYONICS WXTrak Скачать руководство пользователя страница 3

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Construction

WXTrak uses the same hardware as the TinyTrak3. The TinyTrak3 schematic, parts list, printed circuit board, and
assembly and interfacing instructions are shown below, modified where applicable.

Schematic -

Parts List

PIC16F628-20/p programmed with

WXTrak firmware

78L05 +5V voltage regulator

10 MHz ceramic resonator

2N2222A NPN transistor

8.2K ohm resistor (gry-red-red)

3.9K ohm resistor (org-wht-red)

2K ohm resistor (red-blk-red)

R4, R10, R11,

R12, R13

1K ohm resistor (brn-blk-red)

220K ohm resistor (red-red-yel)

R6, R9

10K trimmer potentiometer (103)

R7, R14

10K ohm resistor (brn-blk-org)

2.2K ohm resistor (red-red-red)

C1, C2, C3,

C4, C5

0.1 uf capacitor (104)

D1, D4

Red T1-3/4 LED

Yellow T1-3/4 LED

Green T1-3/4 LED

D5, D6, D7

1N4148 diode

Radio/Power DB9 female connector

Serial/Power DB9 male connector

18 Pin DIP socket

PCB

TinyTrak3 Printed Circuit Board

Содержание WXTrak

Страница 1: ...1 BYONICS WXTrak Owner s Manual Version 1 23 http www byonics com wxtrak...

Страница 2: ...ransmit the current weather data and station location It currently supports the Radio Shack WX200 the Oregon Scientific WM 918 and the Peet Brothers Ultimeter 100 Ultimeter 800 Ultimeter 2000 and Ulti...

Страница 3: ...NPN transistor R1 8 2K ohm resistor gry red red R2 3 9K ohm resistor org wht red R3 2K ohm resistor red blk red R4 R10 R11 R12 R13 1K ohm resistor brn blk red R5 220K ohm resistor red red yel R6 R9 1...

Страница 4: ...TinyTrak3 Owners of these can change to WXTrak functionality by simply replacing the microcontroller and using the WXTrakConfig program Case WXTrak was designed to fit in a Serpac brand C6 plastic cas...

Страница 5: ...this time Install capacitors C1 C5 0 1uf 104 Direction does not matter If the leads need to be formed to 0 1 inch spacing be careful not to bend too close to the yellow ceramic material Bend the leads...

Страница 6: ...oles Wedge the board in between the two rows of solder cups with the 5 pins aligned with the 5 pads on the PCB Solder just one pin first and insure the connector is on straight Then solder on both sid...

Страница 7: ...ctly into a computer s serial port an interface will need to be built The weather station should have a female DB 9 with serial data out wired to pin 2 and ground to pin 5 Weather station serial input...

Страница 8: ...available from www byonics com First power WXTrak and connect it to a computer serial port Be sure to use a gender changer and a null modem adapter Launch WXTrakConfig EXE and select the connected se...

Страница 9: ...r the transmitter is keyed until the data begins It is similar to the TXD setting in most TNCs A value of 200 ms would be equal to 1 5 second Maximum delay is about 1700 milliseconds Transmit Every Th...

Страница 10: ...nsider replacing the 220K R5 with a 100K resistor or shorting jumper This should allow for about double the audio range The next adjustment point is R11 which is used to adjust the carrier detect base...

Страница 11: ...for shorts or opens on the solder side of the PCB Check for 5 volts across socket pins 5 and 14 with the PIC removed WXTrak keys the transmitter sends a packet but fails to un key the transmitter WXT...

Страница 12: ...osition No WXTrak only receives weather station data However TinyTrak3 will interface to a GPS and send that information Details are at www byonics com Is there a surface mount WXTrak available Not at...

Страница 13: ...l be too busy transmitting to monitor serial To resolve this turn the R9 pot such that the CD LED turns on This will prevent WXTrak from transmitting and all the new settings can then be written WXTra...

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