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April 9, 2008
about 5 years ago
Yes, their stuff is expensive, but it is fairly durable. Kids are not kind to hardware and equipment.
Vernier publishes a How-to-make-your-own photo gate circuit:
Other build-your-owns here:
It is great that that part is 1/10 the price, but it is no substitute. You need a separate emitter & detector. These photo gates are big enough to pass your hand through. Or a variety of cars and buggies and balls used in physics classrooms. And you can use a remote laser pointer and make the gate wide enough for an elephant to walk through.
about 8 years ago
Shazbat ... no answer here after 9 months. And this is exactly what I'd love to know.
By any chance did you get one? Have you tried it outdoors?
about 9 years ago
Dude, gimmee a pull of whatever you're smoking.
The SI4735 is a radio on a chip, not a front end on a chip. There are no I/Q outputs on the chip. Even the audio does not get fed to the Arduino. All the Arduino does is command the chip to the mode & frequency of choice.
about 9 years ago
By "tight fit", you mean gently tug every leg of the IC out to its extreme reach and hand solder with a tiny soldering iron. Personally I bet less than 1 in 10 is successful attempting this.
Incorrect. The product you point out is for a much bigger IC than the package Sparkfun sells the SI4735 in. Read about people's experience with the BOB-00500 here: http://www.sparkfun.com/products/10227
Edit: Look at the size of the center IC on this shield. That is the SI4735. Look at the chip above and left of that. That is an SSOP size.
No public wish lists :(