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RS del LCD al pin RB0 del PIC.E del LCD al pin RB1 del PIC.C
#include void ADC_Init() { ADCON1 = 0x0E; // Configure AN0 as analog input ADCON2 = 0xA9; // Right justify the result, FRC as acquisition time ADCON0 = 0x01; // Turn on the ADC } int ADC_Read() { ADCON0bits.GO = 1; // Start conversion while (ADCON0bits.GO) ; // Wait for the conversion to finish return (ADRESH << 8) + ADRESL; // Return the value } void main() { ADC_Init(); LCD_Init(); int fuelLevel; while (1) { fuelLevel = ADC_Read(); float percentage = (fuelLevel / 1023.0) * 100; // Convert ADC value to percentage LCD_DisplayString("Fuel: "); LCD_DisplayPercentage(percentage); __delay_ms(500); } }
C
// Pseudo-código void main() { ADC_Init(); LCD_Init(); while(1) { int fuelLevel = ADC_Read(0); // Leer el canal AN0 LCD_Clear(); LCD_SetCursor(1, 1); LCD_Print("Fuel Level:"); LCD_SetCursor(2, 1); LCD_Print(itoa(fuelLevel)); // Convertir y mostrar el valor __delay_ms(1000); // Espaciar las lecturas } }
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- J and K inputs: For each flip-flop, connect both the J and K inputs to HIGH (logic 1), so the flip-flop toggles its output state on each clock pulse.
- Clock (CLK) inputs: The CLK input of the first flip-flop (let's call it FF0) receives the external clock signal. Each subsequent flip-flop receives its CLK input from the Q output of the previous flip-flop. This connection ensures the ripple effect—each flip-flop changes its state in response to the previous one.
3. Creating the Ripple Counter- Connect the first JK flip-flop (FF0) directly to the clock signal. This flip-flop will toggle its state with every clock pulse, providing a divide-by-2 counter.
- Each subsequent flip-flop's CLK input connects to the Q output of the flip-flop before it. For FF1, connect its CLK to FF0's Q, and so on. This connection ensures that each flip-flop will toggle when the previous flip-flop goes from HIGH to LOW.
4. Reset Mechanism- Connect the outputs of FF0 (LSB), FF2, and FF3 to an AND gate, but FF1's output must be inverted before it reaches the AND gate (since the second bit in the 1011 state is 0).
- The output of this AND gate will go HIGH when the counter reaches 11. This output can be connected to the asynchronous reset inputs of all flip-flops (if available), resetting the counter to 0. Ensure this reset mechanism does not interfere with the normal counting operation—it should only activate when the counter reaches 11.
Example Connections