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Attiny85是一个有趣的处理器,因为尽管是如此之小,它具有闪存8K和5个I / O引脚,包括模拟输入和PWM'模拟'输出。我们设计了一个USB引导程序,所以你可以将其插入任何一台电脑,并重新写了一个USB端口,就像一个Arduino(它使用2的5个I / O引脚,让你有3)。事实上,我们甚至做了一些简单的修改到Arduino IDE,这样它的工作原理就像一个小型的植物。适合小型和简单的项目,GEMMA将是你去到可穿戴的电子平台。Feature:
- Super small, only 1.1" / 28mm diameter and 0.28" / 7mm thick.
- Easy-to-sew or solder pads for embedding in your wearable project
- Low cost enough, you can use one for every weekend project
- ATtiny85 on-board, 8K of flash, 512 byte of SRAM, 512 bytes of EEPROM
- Internal oscillator runs at 8MHz
- Ultra low power, draws only 9 mA while running
- USB bootloader with a nice LED indicator looks just like a USBtinyISP so you can program it with the Arduino IDE (with a few simple config modifications)
- Mini-USB jack for power and/or USB uploading, you can put it in a box or tape it up and use any USB cable for when you want to reprogram.
- We really worked hard on the bootloader process to make it rugged and foolproof
- ~5.25K bytes available for use (2.75K taken for the bootloader)
- On-board 3.3V power regulator with 150mA output capability and ultra-low dropout. Up to 16V input, reverse-polarity protection, thermal and current-limit protection.
- Power with either USB or external output (such as a battery) - it'll automatically switch over
- On-board green power LED and red pin #1 LED
- Reset button for entering the bootloader or restarting the program.
- 3 GPIO - The 3 independent IO pins have 1 analog input and 2 PWM output as well.
- Hardware I2C capability for breakout & sensor interfacing.
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