#LCD1602 ARDUINO UNO PINOUT PDF#
#LCD1602 ARDUINO UNO PINOUT CODE#

In the main loop, every 50 milliseconds or so, check if the global boolean isNewEncoder is true. IRQs should do VERY little set a flag or two, test a input, toggle an output, and then leave. If the input port pin is low, then clear this second variable (isNewEncCW). If the input port pin is high, then the IRQ sets a second boolean variable (isNewEncCW) indicating a small clockwise movement of the knob. It then reads the other reference pin on the Input Port.

#LCD1602 ARDUINO UNO PINOUT CODE#

The IRQ routine sets a boolean flag for the main code that indicates that an encoder interrupt occured (I use isNewEncoder as a variable name. When the encoder is turned, an interrupt happens. These pins are usually filtered by two resistors and a capacitor on each reference pin. The other is set to a general-purpose input. The rotary encoder has one of its two reference pins set to an edge-based interrupt. For example: portreading = PINB & 24 ДЄre you reading the results of two bits? 0x00011000 PINB4 and PINB3? This interrupt code needs refocus and review. Never use decimal numbers when doing binary bit masking, always binary or hex.

#LCD1602 ARDUINO UNO PINOUT PDF#

ino file, these references should be well documented so anyone who is reviewing your code won't have to go digging through the hundreds of pages of PDF ATmega chip datasheet file in order to understand exactly what you are doing when you directly diddle the peripheral control registers. When you are using Arduino and chose to refer to the internal registers of CPU in the. Have you reviewed this website? It was near the top of the list from a Google search on 'KY-040 Arduino'. PreviousB = (portReading & (1 << wheelB)) = 0 Sei() // enables interrupts (not necessary if it's not disabled) PCMSK = 0b00011000 // turn on interrupt on pins PB3 and PB4 GIMSK = 0b00100000 // turns on pin change interrupts I'm using Rotary Encoder KY-040В and MJKDZВ (got same output), flashing ATtiny85 (8MHz internal clock) with Arduino IDE v1.8.2 as 'Arduino as ISP'. it shows me 0, 2, 4, 8, 12 and sometimes gives me some random number output. So, instead of normal increasing like 0, 1, 2, 3, etc. I have the hardware properly configured and hooked up, but the code always output 4 time incrementation and vice versa. I'm strugling more that two days about my code, it seems that I can't figure out what is the issue.

Lcd1602 arduino uno pinout