AVR Tiny merupakan mikrokontroler yang mengesankan dan ekonomis. Secara fisik cukup kecil, namun di dalamnya tidak demikian. AVR Tiny mengusung arsitektur AVR RISC yang kompatibel dengan semua mikrokontroler AVR. Mereka memiliki In System Programming (ISP), Flash Memory, Internal EEPROM dan RAM, Timer, Interupsi, Analog Comparator, ADC dan yang lainnya.
Berikut adalah beberapa anggota keluarga ATtiny, namun tidak semuanya tersedia di Indonesia:
- ATtiny11 1-Kbyte In-System programmable Flash Program Memory, 32 byte SRAM, Up to 6 MIPS throughput at 6 Mhz.
- ATtiny12 1-Kbyte In-System programmable Flash Program Memory, 32 byte SRAM, 64 Byte EEPROM, Up to 8 MIPS throughput at 8 Mhz.
- ATtiny13 1-Kbyte In-System programmable Flash Program Memory, 64-Byte SRAM, 64-Byte EEPROM, 32-Byte Register File, 4-channel 10-bit A/D, Up to 20 MIPS throughput at 20 Mhz.
- ATtiny15L 1-Kbyte In-System programmable Flash Program Memory, 64-Byte EEPROM, 32-Byte Register File, 4-channel 10-bit A/D, Up to 1.6 MIPS throughput at 1.6 MHz.
- ATtiny2313 2K Bytes of In-System Self-Programmable Flash, 128 Bytes In-System Programmable EEPROM, 128 Bytes Internal SRAM. USI--Universal Serial Interface, Full Duplex UART. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. Compatible with Obsolete AT90S2313.
- ATtiny24 2K Bytes of In-System Self-Programmable Flash, 128 Bytes In-System Programmable EEPROM, 128 Bytes Internal SRAM. 8-bit and 16-bit timer/counters with PWM, 10-bit ADC, USI-Universal Serial Interface, On-chip Temperature Sensor. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 8KB version: ATtiny84
* 4KB version: ATtiny44 - ATtiny25 2K Bytes of In-System Self-Programmable Flash, 128 Bytes In-System Programmable EEPROM, 128 Bytes Internal SRAM. Two 8-bit timer/counters with PWM and prescaler, 10-bit ADC, USI-Universal Serial Interface. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 8KB version: ATtiny85
* 4KB version: ATtiny45 - ATtiny26 2K Flash Program Memory, 128 Bytes SRAM, 128-Byte EEPROM, 11-Channel 10-bit A/D converter. Universal Serial Interface. High Frequency PWM. Up to 16 MIPS throughput at 16 MHz.
- ATtiny28L 2K Flash Program Memory, 32 bytes register file, Keyboard interrupt, high-current LED driver, Analog Comparator. Up to 4 MIPS throughput at 4 MHz.
- ATtiny44 4K Bytes of In-System Self-Programmable Flash, 256 Bytes In-System Programmable EEPROM, 256 Bytes Internal SRAM. 8-bit and 16-bit timer/counters with PWM, 10-bit ADC, USI-Universal Serial Interface, On-chip Temperature Sensor. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 8KB version: ATtiny84
* 2KB version: ATtiny24 - ATtiny45 4K Bytes of In-System Self-Programmable Flash, 256 Bytes In-System Programmable EEPROM, 256 Bytes Internal SRAM. Two 8-bit timer/counters with PWM and prescaler, 10-bit ADC, USI-Universal Serial Interface. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 8KB version: ATtiny85
* 2KB version: ATtiny25 - ATtiny84 8K Bytes of In-System Self-Programmable Flash, 512 Bytes In-System Programmable EEPROM, 512 Bytes Internal SRAM. 8-bit and 16-bit timer/counters with PWM, 10-bit ADC, USI-Universal Serial Interface, On-chip Temperature Sensor. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 4KB version: ATtiny44
* 2KB version: ATtiny24 - ATtiny85 8K Bytes of In-System Self-Programmable Flash, 512 Bytes In-System Programmable EEPROM, 512 Bytes Internal SRAM. Two 8-bit timer/counters with PWM and prescaler, 10-bit ADC, USI-Universal Serial Interface. debugWIRE for on-chip-debug. Up to 20 MIPS throughput at 20 MHz. 1.8 - 5.5 V operation.
* 4KB version: ATtiny45
* 2KB version: ATtiny25
Walaupun mikrokontroler yang satu ini excellent, populasi pemakai di Indonesia, tidak terlalu banyak. Mungkin dikarenakan faktor harga, yang umumnya, hampir 2-3 kali lipat dibanding produk sejenis dari Atmel.
This powerful (200 nanosecond instruction execution) yet easy–to-program (only 35 single word instructions) CMOS Flash-based 8-bit microcontroller packs Microchip’s powerful PIC® architecture into an 18-pin package and is upwards compatible with the PIC16C7x, PIC16C62xA, PIC16C5X and PIC12CXXX devices. The PIC16F88 features 8 MHz internal oscillator, 256 bytes of EEPROM data memory, a capture/compare/PWM, an Addressable USART, a synchronous serial port that can be configured as either 3-wire Serial Peripheral Interface (SPI™) or the 2-wire Inter-Integrated Circuit (I²C™) bus, 7 channels of 10-bit Analog-to-Digital (A/D) converter and 2 Comparators that make it ideal for advantage analog / integrated level applications in automotive, industrial, appliances and consumer applications.
This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS FLASH-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into an 40- or 44-pin package and is upwards compatible with the PIC16C5X, PIC12CXXX and PIC16C7X devices. The PIC16F877A features 256 bytes of EEPROM data memory, self programming, an ICD, 2 Comparators, 8 channels of 10-bit Analog-to-Digital (A/D) converter, 2 capture/compare/PWM functions, the synchronous serial port can be configured as either 3-wire Serial Peripheral Interface (SPI™) or the 2-wire Inter-Integrated Circuit (I²C™) bus and a Universal Asynchronous Receiver Transmitter (USART). All of these features make it ideal for more advanced level A/D applications in automotive, industrial, appliances and consumer applications.
This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS FLASH-based 8-bit microcontroller packs Microchip's powerful PIC® architecture into an 28-pin package and is upwards compatible with the PIC16C5X, PIC12CXXX and PIC16C7X devices. The PIC16F872 features 64 bytes of EEPROM data memory, self programming, an ICD, 5 channels of 10-bit Analog-to-Digital (A/D) converter, 2 additional timers, a capture/compare/PWM functions and the synchronous serial port can be configured as either 3-wire Serial Peripheral Interface (SPI™) or the 2-wire Inter-Integrated Circuit (I²C™) bus. All of these features make it ideal for more advanced level A/D applications in automotive, industrial, appliances and consumer applications.
This powerful (200 nanosecond instruction execution) yet easy-to-program (only 35 single word instructions) CMOS Flash/EEPROM-based 8-bit microcontroller packs Microchip’s powerful PIC® architecture into an 18-pin package. The same device can be used for prototyping and production and the end application can be easily updated without removing the device from the end product via the ICSP. Easily adapted for automotive, industrial, appliances low power remote sensors, electronic locks and security applications.
Mikrokontroler harus merubah level logika pada pin INIT pada modul sonar untuk memulai sebuah pembacaan. Setelah pin input INIT menjadi LOW, modul sonar akan mengirimkan sebuah ping. Setelah itu, output ECHO menjadi HIGH dan akan menjadi LOW kembali setelah modul menerima sebuah pantulan.
Waktu eksekusi dari perintah PULSIN adalah berbeda untuk pin yang berbeda. Bila kita merubah pin yang digunakan, perintah PULSIN dalam subrutin sr_sonar di atas mungkin akan kehilangan tepi naik dari input ECHO dan mengembalikan nilai pembacaan nol. Menggunakan perintah RCTIME akan memperbaiki masalah ini. Trik lain adalah memberikan sedikit jeda dengan sebuah perintah dummy sebelum mengukur waktu echo dengan perintah RCTIME (lihat contoh di bawah). Kita perlu melakukan percobaan untuk menentukan kode terbaik untuk aplikasi yang dibuat.
Penampil LCD cukup mudah ditemukan di pasaran, terutama ukuran 16x2. Harganya pun relatif terjangkau.
