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Can anyone recommend a 650 nm/ 5-10 mW laser in the inexpensive-medium price range ( < $10/$15 ) that has worked well for them or would expect it to work well? There seem to be a plethora of choices!?!? TIA

This laser will not work off a 20M2 pin. I shall call it Laser A. I also have a 50mw laser that does work; shall call it laser B. Due to the 4-5 fold increased mw of A over B, I thought that the 20M2 could not supply the required mw. I thought that a transistor might assist with a separate 5...

I am using a 20M2. The IRIN command works well for a few times. The program cycles and visits the IRIN each time it recycles. Anywhere from the 2nd to 4th or 5th program circuit, IRIN hangs up and does not leave. Apparently it does not "timeout" !??? Is it possible that the time(timeout) being...

Have been trying to download a medium size program that is slightly complicated ( but not overly ). It downloads ok on another project board. I also downloaded a smaller blink led program and it downloads ok and works fine. Back to the problem program: It apparently downloads ( or almost...

For many years I have had problems downloading programs. I would push down on the mini-stereo-socket and/or push hard on the AXE027 into the socket when downloading with mixed results. I hated to change microcontrollers because if I finally got one board to download decently; it would all get...

I am using this chip for a motor control project. Pins 1 and 9 need to be enabled with +5V on this chip for the motors to run. + 5v source goes to a 10K Resistor and then splits to the 2 pins. In past, have used a Separate +5V source ( or used +5V from VCC1 CHIP Logic Power (pin 16 ). I am...

I am looking for a small switch for a prototyping board.: DESIRED PROPERTYS: Push Button On/Off ( NOT Momentary ) SPST Preferably 4 prong ( but does not have to be ) I ordered GPTS203211B ( CW Industries )...( Digi-Key CW-181-ND ) It only had 2 prongs and I struggled to get prongs deep...

In past I used a Parallax BS2 for "Infrared Object Detection". I would like to convert and use PICAXE for this detection. Below is a clip of code: loop: pause 50 freqout 14, 1, 38500 irdet = in7 ir irdet = 0 then quit goto loop quit ( do something if obstacle detected ) The hardware...

I am attempting to get the OPTEK OPB704WZ ENCODER to work with the PICAXE 20M2 without much success. A few years ago I got the code to work with the BS2. The OPB704WZ is a "Reflective Optic Encoder". When a pattern changes from white to black or vice versa, the input pin 3 should change from...

I am doing what title says. Am not having much success on major supplier searches..."SparkFun, Banggood" and several others. Can someone recommend an encoder and source? In past, I used a Zagros encoder, but now can not find it. ( I suppose if I am directed to an optical encoder that works...

I have 2 infrared sensors that are in opposite directions. The program has a "Main" Loop which when interrupted by a certain Sony Remote Code should light a red or green led to show which ir sensor received the ir signal. Only the red led will light see code "flashred...." when ir received on ir...