살다보면...

1194909230_ATmega128.pdf

– 128K Bytes of In-System Reprogrammable Flash
– 4K Bytes EEPROM
– 4K Bytes Internal SRAM

– Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes
– Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode and Capture Mode
– Real Time Counter with Separate Oscillator
– Two 8-bit PWM Channels
– 6 PWM Channels with Programmable Resolution from 2 to 16 Bits
– Output Compare Modulator
– 8-channel, 10-bit ADC
    8 Single-ended Channels
    7 Differential Channels
    2 Differential Channels with Programmable Gain at 1x, 10x, or 200x
– Byte-oriented Two-wire Serial Interface
– Dual Programmable Serial USARTs
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with On-chip Oscillator

– 2.7 - 5.5V for ATmega128L
– 4.5 - 5.5V for ATmega128

– 0 - 8 MHz for ATmega128L
– 0 - 16 MHz for ATmega128

1194909016_ATMega88.pdf

– 4/8/16K Bytes of In-System Self-Programmable Flash (ATmega48/88/168)
– 256/512/512 Bytes EEPROM (ATmega48/88/168)
– 512/1K/1K Byte Internal SRAM (ATmega48/88/168)

– Two 8-bit Timer/Counters with Separate Prescaler and Compare Mode
– One 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode
– Real Time Counter with Separate Oscillator
– Six PWM Channels
– 8-channel 10-bit ADC in TQFP and QFN/MLF package
– 6-channel 10-bit ADC in PDIP Package
– Programmable Serial USART
– Master/Slave SPI Serial Interface
– Byte-oriented 2-wire Serial Interface
– Programmable Watchdog Timer with Separate On-chip Oscillator
– On-chip Analog Comparator
– Interrupt and Wake-up on Pin Change

– 1.8 - 5.5V for ATmega48V/88V/168V
– 2.7 - 5.5V for ATmega48/88/168

– ATmega48V/88V/168V: 0 - 4 MHz @ 1.8 - 5.5V, 0 - 10 MHz @ 2.7 - 5.5V
– ATmega48/88/168: 0 - 10 MHz @ 2.7 - 5.5V, 0 - 20 MHz @ 4.5 - 5.5V

PCB위에 유리를 대고 그위에서 터치하여도 되는걸 확인하였음

1194908608_qt240_111[1].pdf

1194908608_an-kd01_qmatrix_design_rules[1].pdf

1194908608_an-kd02_103-touch_secrets[1].pdf

1. LED는 종류마다.색상마다.필요전압이 다름니다(**아레표 참조**)

2.제일좋은 방법은 LED를 구입할때 LED의 사양서(특성표)를 받는것인데 몆푼? 안되는LED를 사면서 사양서(특성표)를 달라기가 좀 그렇죠?

3.그럴때는 (**아레표 참조**)를 참조하시면 거의 맞습니다.

즉) 특수LED(모듈타입)를 빼고는 고휘도 든, 보통이 든 색상에 좌우됩니다.

[저항 계산방법]

1.병렬 연결일때:

저항값 = (전원전압-LED전압) / LED전류(보통15mA~20mA)

예) 전원 전압이 12V일 경우

적색LED일겨우 : (12 - 2) / 0.02 = 500[옴]

백색LED일겨우 : (12 - 3.4) / 0.02 = 430[옴] ---->430옴저항은 없으므로470옴사용

2.직렬로 연결할때:

저항값 = (전원전압-LED전압*수량) / LED전류(보통15mA~20mA)

예) 전원 전압이 11.1V일 경우

적색LED일겨우 : (11.1 - 2 * 4) / 0.02 = 155[옴] ---->155옴저항은 없으므로 150옴사용

백색LED일겨우 : (11.1 - 3.4 * 2) / 0.02 = 215[옴] ---->215옴저항은 없으므로 220옴사용

**백색의경우 3개를 연결하면 전원 전압에 육박하므로 2개까지만 가능합니다.**

**저항은 LED와 직렬로 붙이시고 +/-어느쪽 다리에 붙여도 상관없습니다

** LED는 극성이 있으므로 반드시 전원극성과 맞춰주시고직렬로 연결할때도 LED끼리 맞춰야 합니다.

즉)전원+-->저항-->LED(+)-->LED(-)-->LED(+)-->LED(-) -->전원-