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I want to interface 2.8" TFT which is of mcufriend, images attached for reference, with arduino uno.
I have written code as per below given but it display on white screen.
I have used SPI interfacing. Is there any library missing or anything else is the issue?
Difference in two similar LDR Characteristic in two axis sun tracking system
I am working on sun tracking system in which I am using two similar LDR to sense the intensity of sun by shadow method.
But the characteristic of both similar LDR are different means at the same light...
I am planning to design two axis solar tracking system using pic controller (like PIC16F877A), LDR and two DC motors.
I will compare voltage of two LDR for one DC motor rotation (Either in reverse or forward) and other two LDR for second DC motor rotation through L293D driver...
I am working on PIC16F877 project. I am using ADC and taking the signal from sensor and giving it to analog pin.
I am preparing the circuit in which I am considering the four point given below.
1. When sensor is short, at that time I am getting 0mV and I can declare that Sensor...
I want to use I2V converter circuit which will convert 4-20 mA to 0-5VDC.
I dont want to use 250 ohm resistor which convert 4-20mA to 1-5VDC....
Plz suggest me any I2V converter circuit which can convert 4-20mA to 0-5VDC exact...
Which extra detection circuit, I should use??? If accidentaly -15 V apply to analog pin then How can I protect the Controller and detect that reverse voltage is apply to analog pin???
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If sensor connected the wrong way OR say -15V is applied to analog pin then how can I...
I am working on PIC16F877 controller based project where I am using ADC module and read the value of connected sensor's output. I am using different types of pressure sensor. I am using LCD to display the value of ADC. Pressure sensor is giving output 0 to 5VDC.
I have two-three silly question in my mind...
1. If I give more than 5V, say 10V to analog pin of ADC then what happen???
2. If I give negative voltage to analog pin of ADC then what will happen???
3. If I have 4-20mA output of sensor, can I use it as analog input??? OR First I...
Right now I am using 4 key to perform the operation like UP, DOWN, OK & EXIT in my project. But Now I want to perform EXIT operation by remaining three keys. How can I prepare the code???
I mean I want to reduce the keypad from 4 keys to 3 keys....
I am using PIC16F877 with...
In my LP-PIC DEM 2 PLUS Demo Kit, LCD is becoming too dull and not working at all. Before one day, it was flickering but today it was gone totally. I am using 40 pin PIC16F877.
I have checked for any short wire but not found any.
Can anybody know why this problem happen...
I have interface keypad (4x4) with PIC16F877 using Hi-tech C compiler.
Now I want to scan the keypad to know that is any key pressed or not???
How can I use timer to scan the keypad so that I did not need to scan the keypad every time in program code???
I think I can use timer...
How to do multiplication operation without using math library. I am using float datatype.
I am working on PIC16F877 using hi-tech C compiler.
I have read that multiplication in math operation consuming more program memory so I want to optimize my program code, if any other logic is...
I have used 741 op-amp as amplifier with 50 Gain so I am getting 0-5 V w.r.t. 0-100mV analog input. I have also used the averaging in ADC program. I have also tried 10uF capacitor connected to adc pin and ground. Still I am getting fluctuation in reading of ADC. What may be the reason for that???