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Iam trying to draw rpm realtime graph in c#, but I have strange line drop sometimes. I just noticed it happens when I spin it high and i little bit drop rpm, then it shows like huge drop Can someone c# guru check if this programm error or picaxe ? main: count B.3,1000, w1 sertxd(#w1) goto...

Iam sniffing volts from battery and want to switch relay when volt ar >x or <x. What is best way to simulate,test this, like if volt > 571 then high one relay, if volt < 545 then high other relay, need your advice what is the simplest way to simulate this, whether you can send a command via the...

Iam trying to turn on relay (leg-12 , 12v). What is the best way to do this? Tried with mosfet irfz44n and 100r resistor , but its aint working (mosfet is not switching). What is the problem and why I can turn it(mosfet after which and relay is switching like it should) from 5v source but not...

1)I will use dc motor as generator, and I want to know how much V its producing. Can I use this methode? 2)If yes, what power rating resistors,zener diode, cap farad should I use for 24V 28W motor, it will be rotated to produce about 2 to 12V. If I cant use my schematic,please explaine...

In conclusion, you can programm picaxe with MCP2200 , but be sure it is latest revision chip. Iam trying to use this http://web.argus.lv/shop/download/436689/hwindex.htm to communicate with my 18m2. This is mcp2200 chip based converter. Connected like told in tutorial with 10k 22k...

What is the best way to measure DC motor RPM, I will spin it to produce voltage. I dont know much about the motor, its 24v and 25w This is my first post and certainly not the last. Explain please in detail so I dont have to bother you again, I'm new to this micro thing :-)