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December 14, 2008
about 11 months ago
Any possibility of getting motors with quadrature encoders built in. (or as an option for this)
Anybody know what the refresh rate for receiving new reading is on this device. I realize that it’s outputting a continuous analog signal, but what is the effective response time in terms of that signal responding to changes in distance.
about 2 years ago
Yes, what is the bandwidth on this? Looked on all the links but didn’t see it anywhere. Based on rule of thumb for sample rates, it seems to imply between 18 and 24Mhz bandwidth, assuming real time sampling rates ???
about 3 years ago
Does anybody know of a tutorial for daisy chaining these to display a number larger than 4 digits?
For example, if i have two of them set up, I’d like it to be able to display “1365535” or the like via an abstraction layer. (e.g. without having to manually send “5535” to the first display and “136” to the second display.
Seems like a solved problem, so I thought I’d ask first before reinventing the wheel…. ;)
about 5 years ago
Be sure to get the corresponding GPS Shield. The connector is MORE than mildly inconvenient. I’d go so far as to say the pins are ‘inaccessible’ without the GPS Shield.
Anybody have a source for the receptacle of this cable? I’m having a hard time sourcing one in Los Angeles.
I guess one could cut the end off and solder on you’re own wire, but I doubt this is a recommended solution.
about 6 years ago
Is there a tutorial for getting these working (or something close).
I also agree with John. Difficult to figure out which pin is pin one. Don’t seem to be any markings on the unit to indicate ‘top’ or ‘pin 1’ or other useful type designation.
about 7 years ago
I used BabelFish to translate the Portuguese tutorial. I think I’ve got it set up correctly, but I’m not familiar with sensors.
What does the 24 hour ‘Pre-heat’ time mean in the data sheet?
Here’s what I’ve got hooked up using the gas sensor break out board:
+5v DC to H1,
ground to GND
+5v DC to A1
Arduino AD Pin 0 to break out board B1
B1 also to a 100K resistor, Resistor to GND.
The unit seems to measure, but the results are in the 924 to 1023 range instead of 0 ish to 1023 range???
The unit is also getting ‘warm’ to the touch.
Shouldn’t I be getting a greater range than 924 to 1023?
Does the sensor need to ‘burn in’ prior to accurate readings?
Any help appreciated, I’m a neub when it comes to sensors for sure.
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