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rotary encoder

 

A friend thinks he has a problem with the rotary encoder in his uBITX. Does anyone have the part number for it?

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73 Keith VE7GDH
 

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I got 5 of these lately.? I used them with some code from the internet to change frequency on a RaduinoX.

Be sure to get the "Nuts" version shipped with the nuts!

These had serrated shafts and detents.

Mike, WA6ISP



On 1/18/2019 8:33 AM, Keith VE7GDH wrote:
A friend thinks he has a problem with the rotary encoder in his uBITX. Does anyone have the part number for it? 

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Mike Hagen, WA6ISP
10917 Bryant Street
Yucaipa, Ca. 92399
(909) 918-0058
PayPal ID  "MotDog@..."
Mike@...
 

Non-operation?? I would check the wiring and integrity of solder connection.? If he is using Sunil's case and I/O circuit board - the latter is notorious for solder bridges.?

If encoder is not tuning smoothly - skipping frequencies with too big jumps - this strikes me as a bad encoder.? Of course obtaining a spare can aid debug.?

Curt
 

It is possible to test the mechanical switch type rotary encoders by using a pair of resistors and
LEDs to show the outputs as the knob is turned slowly.? Connect a 1500 ohm resistor from +5
to the LED and the LED cathode to an encoder output.? If you use two resistors and two LEDs
you can see the quadrature output states.?

Arv
_._


On Fri, Jan 18, 2019 at 9:33 AM Keith VE7GDH <ve7gdh@...> wrote:
A friend thinks he has a problem with the rotary encoder in his uBITX.
Does anyone have the part number for it?

--
73 Keith VE7GDH
 

?I bought a bunch of the plain switches, with the threaded shaft casing, plus nuts and washers.
?Also bought 2 or 3 mounted on boards with resistors where called for.
?I figure to replace the pot with them, just need to get the coding set for that.
?It is a good idea to test some of these things.
?I bought two ten turn pots, plus have one that came with a BITX20 parts kit for the boards that Sunil sells.
?And, it turns out that one of the pots I bought is bad. No connection between any of the 3 connectors, period.
?Now I don't know who i bought it from.
?I'll take note of how to test the switches..

?Wayne WA2YNE
?still trying in West Texas.

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