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Re: current sensing for controller
You have to convert the current consumed by the sensor to the voltage range level within the microcontroller supply voltage.
As KlausST said, you should use simple Ohms law in order to calculate the resistance.
Since you are using the 24V supply, it is not a...
As per your program, you will only get the following condition passed..
if (i == 2'b00)
begin
gen_data_reg_1_0 <= 16'h2000;
gen_data_reg_3_2 <= 16'hb505;
gen_data_reg_5_4 <= 16'h0000;
gen_data_reg_7_6 <=...
Hi
I am using a ADXL345 accelerometer to find the tilt angle.
I need the formula to calculate the tilt along X axis and Y axis over the 360 degress. ( 0 degree to 360 degree )
Can anybody pls post the formula here to calculate it....
You check the MCLR pin in PIC. It should measure the voltage equal to Vdd. If MCLR reads as 0V then your controller is in the Reset state and you have to enable the MCLR in configuration register.
I think there is nothing wrong with the Configuration settings. You may disable the Brownout Reset as of now.
Is Your program not uploading ? or the uploaded program is not working?
If you provide the coding then we can find the issue..
I have designed like this..
Input side:
24V-4.7K-LED of PC817-Gnd
Output side:
5V-1K-Collector of PC817; Emitter of PC817 - Gnd
Output taken from collector..
I have tried with PC 817 Rank A and PC817 Rank D.
Both are producing same output voltage and Same current. Then how does the Rank( CTR...
Hi,
I just want to isolate the 500 Hz digital signal ( High 24V, Low 0V) , Hence i want to use the PC817. But in the datasheet i found a term called "CTR" and they have given some Rank marks for them.
I will connect the isolater's LED in series with 1.5K resistor and the given input signal...
Well I am aware of PWM method. But the issue is I will have to send this for EMI/Emc testing. PWM method will switch LED much quickly, also it is quite high power LED. So I am worrying about the amount of Radiation it will emit.
Hi,
I want to adjust the brightness of a 8W LED ( 12 V, 0.7 A ) for the "scale" of 0%( OFF ) to 100%( Full brightness ) from my microcontroller. I will get the "Scale Input" from a HMI.
I dont want to design it using the PWM method.
Please help on designing the " variable analog high power...
Hi,
I want to detect the power failure little earlier. So i designed the following circuit.
Where do i need to connect the cathode of zener diode ZD2 ( To the point A or B in the image) so that i can get maximum time after power failure?
I just want to know which one has the more effect than...
Hi,
Given here the "open collector input" image..
The datasheet of servo drive specifies that "max. input pulse frequency of Open-collector input is 200kpps." Will the standard opto couplers suits this?
Hi,
I am using 3.3V operating microcontroller. I want to run the servo motor. The open collector input of servo drive requires the 24V pulses.
Also i want to optically isolates the microcontroller part from the servo drive section.
Can anyone pls give me any Optical isolator( High speed, Vcc...
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