Summary of NOKIA3310 LCD PIC16F88 RESISTOR COLOR CODE CALCULATOR CIRCUIT
Summary: A simple resistor color-code calculator uses a PIC16F88 microcontroller with a Nokia 3310 LCD and a 4×3 keypad. Twelve keypad keys correspond to standard resistor colors. Users enter colors by row to form 3-, 4-, 5-, or 6-band resistors; the circuit validates allowed color positions, computes the resistance (0.1 Ω to 99 GΩ), and shows value on line 1 and tolerance on line 2 of the LCD.
Parts used in the Resistor Code Calculator:
- PIC16F88 microcontroller
- Nokia 3310 LCD module
- 4 × 3 keypad (12 keys)
- Resistor color-coded input mapping (software mapping to keypad)
- Power supply (appropriate for PIC16F88 and LCD)
- Supporting passive components (decoupling capacitors, pull-ups)
- PCB or prototyping board and connectors
- Programming/debugging interface for PIC16F88
Our circuit commercially available 4-color carbon resistor color code itself accounts. As our circuit structure is quite simple . PIC16F88 as a material for Nokia 3310 keypad and LCD 4 × 3 consists of a few simple elements . Application to the study, the 12 keys on the keypad each respectively black, brown, red, orange, yellow, green, blue, purple, gray, WHITE, GOLD, SILVER color is expressed with .
Entered with the keypad and the screen colors as 3, 4, 5 and 6 are displayed in rows . Last color by entering the resistance value is calculated automatically . The calculated resistance value is printed on the 1st line of the screen . If the tolerance of the resistor value is displayed on line 2 . Circuit and the color codes to the extent allowed up to 0.1 ohms and 99 giga ohms of resistance value can be calculated.
In practice, the wrong color in the wrong rows are not allowed to enter the code . 1.Color black , gold, silver , excluding any color can be entered. 2 colors gold, silver , excluding any color can be entered. 3 colors , each color can be entered. 4 colors are gold or silver in color only tolerance can be entered.
RESISTOR CODE CALCULATOR CIRCUIT SCHEMATIC
PIC16F88 RESISTOR CODE CALCULATOR CIRCUIT TEST
Source: NOKIA3310 LCD PIC16F88 RESISTOR COLOR CODE CALCULATOR CIRCUIT
- What components make up the resistor code calculator?
The circuit uses a PIC16F88, a Nokia 3310 LCD, a 4×3 keypad, power supply, supporting passive components, PCB, and a programming interface. - Which keypad layout corresponds to resistor colors?
The 12 keys on the keypad correspond to black, brown, red, orange, yellow, green, blue, purple, gray, white, gold, and silver colors. - How many resistor band types can the circuit handle?
The application supports 3-, 4-, 5-, and 6-band resistor color codes. - What resistance range can be calculated?
Resistance values from 0.1 ohms up to 99 gigaohms can be calculated. - How are results shown on the display?
The calculated resistance value is printed on the first line of the LCD and the tolerance is shown on the second line. - Are invalid color entries prevented?
Yes; the circuit does not allow incorrect colors in wrong band positions per the rules described. - Which colors are not allowed in the first band?
Black, gold, and silver cannot be entered in the first band. - Which colors are not allowed in the second band?
Gold and silver cannot be entered in the second band. - What restriction exists for the tolerance band?
The tolerance band (fourth band for a 4-band code) may only be gold or silver in color.
