미니 웨어러블 전자 플랫폼 GEMMA v2
(Adafruit GEMMA v2
- Miniature wearable electronic platform)
개요
- 웨어러블 플랫폼인 Flora를 좋아하시지만 좀더 작은 크기의 버전을 찾으시나요?
- 본 GEMMA 웨어러블 플랫폼은 약 2.5cm 지름의 작은 크기의 보드입니다.
- Attiny85 마이크로컨트롤러가 탑재되어 있으며, USB 연결을 통해 아두이노 IDE로 프로그래밍이 가능합니다.
- 작고 저렴하여 웨어러블 프로젝트에 적합합니다.
- microB USB 커넥터와 on/off 스위치가 장착되어 있습니다.
특징
- 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.
- Dimensions: 27.98mm / 1.1" round x 7.14mm / 0.28" high
- Weight: 3.29g
- Even though you can program GEMMA using the Arduino IDE, it's not a fully 100% Arduino-compatible. There are some things you trade off for such a small and low cost microcontroller!
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- GEMMA does not have a Serial port connection for debugging so the serial port monitor will not be able to send/receive data
- Some computers' USB v3 ports don't recognize the GEMMAs bootloader. Simply use a USB v2 port or a USB hub in between
문서
- Kaleidoscope Eyes (Trinket-Powered NeoPixel LED Ring Goggles)
- Introducing Gemma
- GEMMA Hoop Earrings
- Trinket / Gemma Space Invader Pendant
- Superhero Power Plant
- Space Face LED Galaxy Makeup
- 3D Printed LED Buckle
- Trinket / Gemma Blinky Eyes
- 3D Printed NeoPixel Ring Hair Dress
- NeoPixel Ring Bangle Bracelet