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Thanks FvM and milan.rajik...
The AT Commands User Guide pdf was helpful. I connected the SIM900D module with PC using RS-232. Then I sent the commands that are given in examples section in user guide in the same sequence. I posted some data on the website http://posttestserver.com/ which is a...
Hello Everyone !
I have experience in working with PIC Microcontrollers and I want to send data (simple text) from PIC to the internet on HTTP protocol. I will be interfacing SIM900D GSM/GPRS modem with PIC for this purpose. Can anyone guide me about this interfacing and uploading the text...
Hello !
I need circuit diagram of delta power supply can anyone provide me ?
Here's the link for the product :
**broken link removed**
Thanks in advance..
yes sunnyguy is right.... the optocoupler is used to isolate the input from output... if you make the supply common then optocoupler is useless you could have used a transistor instead. Otherwise, you should separate the optocoupler input supplies.
transducer = sensor..
sensor converts a physical quantity to an electrical quantity (i.e. voltage and/or current and/or change in resistance)
thermocouple is a sensor... senses temperature and generates voltage. Strain Gauge is a sensor, it senses pressure and its ressitance changes... like...
this box means a tranducer that produces constant current as an output which ranges from 4 to 20 mA. You will then connect a resistor and then at any instant , you can measure the voltage drop on this resistor through ADC. Once you know the voltage, you can get the instantaneous current by using...
but see the first page of the datasheet, texas instruments have said that it can be used as a regulator or reference.
check : https://j.mp/1pECQzh
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but I think the PIC I am using will not even generate 4.096 V. Am I right ? here's the datasheet :
ok its working fine. Thanks Audioguru.
malli_1729
here's the schematic :
here's the first page of datasheet :
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But it has rated minimum 3.0 V and right now there is 2.998 V appearing on output. One IC shows 2.998V and the other shows 2.985 V.
do you think it would be a...
Hello Everyone !
I am trying to use the Texas Instruments LP2950CZ-3.0 as a voltage reference for A/D conversion with PIC18F26K22. But I have tested it outside the circuit, and it does not give 3.0V output. Instead it gives 4.55 V output on 5V input. I have two pieces and both show the same...
hi KlausST,
I am sorry I could not understand what are you trying to say....
slp = slp + ( newADC - slp) / 200
how did you derive this formula for the 10 Hz cutoff frequency ?
yes I am using float variable to read the adc values... but I dont understand the formula please ellaborate more...
hi paulfjujo,
Thanks for replying...
I used the slope method to detect the signal by taking 20 samples in every 10 ms span... then I subtracted every second sample from the first and saved the results... then I checked on which sample the difference is zero, there we get the zero slope and we...
hi sankar, the problem is that that signal changes its shape as the "non peak" area amplitude increases... for example if there is 10 ms total time period and 2 ms peak time, then it does not remain the same when the amplitude increases.... the peak time may become even longer so we can not be...
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