参数资料
| 型号： | ATAVRDB101 |
| 厂商： | Atmel |
| 文件页数： | 3/10页 |
| 文件大小： | 0K |
| 描述： | MODULE DISPLAY LCD/RGB BACKLIGHT |
| 产品培训模块： | MCU Product Line Introduction megaAVR Introduction |
| 标准包装： | 1 |
| 系列： | AVR® |
| 主要目的： | 显示器，LCD 控制器 |
| 嵌入式： | 是，MCU，8 位 |
| 已用 IC / 零件： | ATmega1281 |
| 主要属性： | 128x64 像素，RGB 背光，控制杆 |
| 次要属性： | UART（RS-232），SPI 和 TWI，数据闪存，压电扬声器 |
| 已供物品： | 板，DVD |
| 产品目录页面： | 611 (CN2011-ZH PDF) |
| 相关产品： | ATMEGA1281-16AURTR-ND - MCU AVR 128K FLASH 16MHZ 64TQFP ATMEGA1281V-8MU-ND - IC MCU AVR 128K FLASH 64-QFN ATMEGA1281V-8AU-ND - IC MCU AVR 128K FLASH 64-TQFP ATMEGA1281-16MU-ND - IC MCU AVR 128K FLASH 64-QFN ATMEGA1281-16AU-ND - IC MCU AVR 128K FLASH 64-TQFP |
AVR481
2.1 AVR microcontroller
The LCD is controlled by an ATmega1281, which has 64 pins, 128kB of Flash
memory and 8kB of SRAM. The AVR is running from external 7.37MHz ceramic
resonator. The system clock can be scaled down internally to reduce power
consumption.
2.2 LCD display
DB101 features a Display Tech, 128x64 pixel graphical LCD (64128 COG) with RGB
backlight. The LCD can be accessed in both parallel and serial mode. In serial mode
the LCD’s built in RAM memory can only be written to, while in parallel mode it can be
both written and read back. Therefore, to take full advantage of the LCD’s RAM the
parallel mode is used.
2.3 Joystick
A four-way joystick with push button function is placed on the right-hand side of the
DB101. This allows the user to navigate in menus and make selections.
The joystick is connected to the mega1281’s port C, pins 3 through 7, and to port B
pin 4, which is connected to an external interrupt (can wake up the device from
sleep).
2.4 Piezo speaker
To allow audio feedback to the user a miniature piezo speaker is included on the
DB101.
The Piezo is connected to the mega1281 on pin 17 – OC1C, the output compare
channel C on timer 1. This makes it possible to control the sound generation using
the PWM output of OC1C.
2.5 Power supply - battery
The DB101 can be powered from and external voltage source or from an on-board
coin-cell lithium battery. When running from the battery it is recommended to scale
down the system clock and not use the LCD backlight, as this can exceed the
recommended maximum current drawn from the battery. If high current is drawn from
the battery, the battery life-time can be very limited. Even with the backlight off, the
battery can be drained rather fast.
It is therefore recommended to
connect
an
external
supply
whenever
working/developing with the DB101.
When using external power supply the DB101 can be supplied from anywhere
between 1.8V and 5.5V. This is possible since the DB101 features a buck-boost
converter, which will provide 3.3V to the AVR and the LCD regardless of the input
voltage.
Jumper J306 controls whether the DB101 is powered from an external power source
or from the on-board battery. Shorting the jumper pins 1 and 2 will connect the battery
(default from factory), while shorting the pins 2 and 3 will connect the external supply.
3
8073B-AVR-09/07
相关PDF资料 |
PDF描述 |
|---|---|
| ATAVRMC100 | KIT EVALUATION FOR AT90PWM3 |
| ATAVRMC200 | KIT EVAL FOR AT90PWM3 ASYNC |
| ATAVRMC300 | BOARD EVAL LV MOTOR CONTROL PWR |
| ATAVRMC303 | BOARD EVAL MOTOR CTRL W/XMEGA |
| ATAVRMC320 | KIT EVAL MOTOR CTRL CAN/LIN |
相关代理商/技术参数 |
参数描述 |
|---|---|
| ATAVRDISPLAYX | 功能描述:开发板和工具包 - AVR XMEGA Display Evaluation Kit RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRDRAGON | 功能描述:仿真器/模拟器 AVR Emulator and Progammer RoHS:否 制造商:Blackhawk 产品:System Trace Emulators 工具用于评估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2 |
| ATAVRFBKIT | 功能描述:开发板和工具包 - AVR Dimmable Fluorescent Ballast kit RoHS:否 制造商:Arduino 产品:Evaluation Boards 工具用于评估:ATMega32U4 核心:AVR 接口类型:I2C, UART, USB 工作电源电压:6 V to 20 V |
| ATAVRFEB-P4 | 功能描述:ATAVRFEB-P4 制造商:microchip technology 系列:* 零件状态:在售 标准包装:1 |
| ATAVRISP | 功能描述:PROGRAMMER AVR IN SYSTEM RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 类型:MCU 适用于相关产品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、缆线、软件、数据表和用户手册 其它名称:520-1035 |
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