Eggtimer Rocketry Flight Computer Instrukcja Użytkownika Pobierz pdf (Strona 16)

Troubleshooting Tips (in approximate order of likelihood)

RED PWR LED doesn’t come on

• Cable wired incorrectly

(RED wire should be on BATTERY + pad, BLACK should be on BATTERY -)

• Check the polarity of the LED… it may be in backwards

• Bad solder joint on the RED LED or the 2.2K resistor next to it

• Incorrect battery polarity, or bad solder joint on battery connector pads

• Bad solder joint on voltage regulator

• Bad polarity on electrolytic capacitors

• Bad solder joint on electrolytic capacitors

RED LED on the RF MODULE doesn’t flash

• No matching Eggfinder TX board transmitting (are they on the same frequency?)

• Bad solder joint on the RF Module

• Solder bridge on the RF module pads

Can’t Receive Data from the USB Serial Cable

• Driver for Prolific PL2303HX chipset not loaded in your device

• Serial port not properly configured

(should be 9600 baud, 8 bits, 1 stop bit, no parity, no flow control/handshaking)

• Application not using the proper serial port

(check your device settings for the correct port)

• Cable incorrectly wired… WHITE wire should be on RXD pad next to RF module

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Eggtimer Rocketry Flight Computer Instrukcja Użytkownika Strona 16