Microprocessors in wearable Technology
Hello, In this world of technology we are experiencing different innovations daily. There are different technologies available in our day-to-day life, like smartphones, laptops, smart Tv, etc and there is a lot of surge in wearable technology too.
There are different types of wearable devices available in the market like smartwatches, fitness bands, smart glasses, implantables, Head-mounted displays, AR VR tech.
So in this blog, we are going to see what are the internals of these devices, which microprocessors are used in these devices.
- Adafruit-Gemma:-
Specifications:
Ø Super small, only 1.1" / 28mm diameter and 0.28" / 7mm thick.
Ø Easy-to-sew or solder pads for embedding in your wearable project
Ø Low cost enough, you can use one for every weekend project
Ø ATtiny85 on-board, 8K of flash, 512 bytes of SRAM, 512 bytes of EEPROM
Ø Internal oscillator runs at 8MHz
Ø Ultra-low-power draws only 9 mA while running
Ø 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)
Ø Micro-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.
Ø We worked hard on the bootloader process to make it rugged and foolproof.
Ø ~5.25K bytes available for use (2.75K taken for the bootloader)
Ø On-board 3.3V power regulator with 150mA output capability and ultra-low dropout.
Ø Power with either USB or external output (such as a battery) — it’ll automatically switch over
Ø On-board green power LED and red pin #1 LED
Ø Reset button for entering the bootloader or restarting the program.
Ø 3 GPIO — The 3 independent IO pins have 1 analog input and 2 PWM output as well.
Ø Hardware I2C capability for breakout & sensor interfacing.
-Pinout:-
-Click the below link to purchase this item:-
2. Lilypad Arduino:-
Specifications:
Ø Microcontroller: ATmega32u4
Ø Flash memory: 32 kB, of which 4 kB are used by the bootloader
Ø SRAM: 2.5 kB
Ø EEPROM: 1 kB
Ø Operating voltage: 3.3 V
Ø Input voltage: 3.8–5 V
Ø Digital input/output pins: 9
Ø PWM channels: 4
Ø Analogue input channels: 4
Ø Direct current per I/O pin: 40 mA
Ø Clock speed: 8 MHz
-Pinout :
-Click the below link to purchase this item:-
3. Adafruit flora:-
Specifications:
Ø Battery input (JST): 3.5–16V (the regulator is MIC5225–3.3) with reverse polarity protection, 2A max rated connector. We recommend no more than 6VDC so that the 3.3V regulator does not overheat
Ø USB input: 4.5V-5.5V with 500mA fuse
Ø 3.3V output pad
Ø Clock speed: 8MHz
Ø Chipset: ATmega32u4
Ø VBAT output pad: the higher the VBAT JST input voltage and USB voltage (two Schottky diode connection)
Ø Current Draw: 8mA quiescent, another 2mA when the pin #D7 LED is on.
-Pinout:-
-Click the below link to purchase this item:-
4. Tiny lily mini:-
Specifications:
- Arduino and LilyPad Compatible
- Washable
- Robust Gold Finish — makes soldering easy and is non-corrosive
- 8 I/O (4 Digital, 4 Analog / Digital) and 4 Power Sewtabs (2 for power, 2 for ground)
- Sewtabs is 1.2mm in diameter, easy to use with standard conductive thread and needles
- USB expansion header
- Ultra-compact size and weight
- 14.0mm (0.55 inch) diameter o
- Max Height: 2.8mm (0.11 inches) o
- Ultra-thin 0.61mm (0.024 inches) PCB o
- Weight: .39 grams (.01 ounces) o
- Atmel ATmega328P Microcontroller o
- 32KB Flash, 2KB RAM, 1KB EEPROM o
- 1.2mA (typical) @ 3V, 4MHz o
- Clock speed: 8MHz o
- 2.7V — 5.5V operating voltage
-Pinout:-
-Click the below link to purchase this item:-
https://www.fabtolab.com/tinylily-mini-processor
Ø Conclusion:-
Hence, we are using these microprocessors indirectly through wearable devices.
But now we are familiar with wearable technology microprocessors.
We have seen the specification, pinout, and pricing of these microprocessors
Ø References:-