1 vote

GPS Module not catching signal

The breadboard is wired wrong. The parts on either side of the center bar of of the breadboard are not connected to each other (see here), so the white and orange wires and the black yellow and wires ...
StarCat's user avatar
  • 1,641
1 vote

GPS Module not catching signal

The "No GPS detected" message means that 5 seconds have passed and less than 10 valid characters have arrived at the GPS serial port. Could be a baud rate mismatch.
tepalia's user avatar
  • 64
1 vote

Generation of TTL Signal

The 1u/2us are pretty fast - you have 16 or 32 instruction cycles @16MHz. And now you have digitalRead that usually takes around 70 instruction cycles (several times), after that 32b arithmetics (...
KIIV's user avatar
  • 4,752

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