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Battery and BT module for my Pok3r

License: MIT License

Eagle 100.00%

btkb's Introduction

btkb

I have a fantastic Pok3r mech that, annoyingly, uses a cable to connect to my computer. I am building a module that includes a decent battery and bluetooth modem to replace the cable.

Prototype

Schematics

Power module

Bluetooth module

Board

Power module

Bluetooth Module

Parts list

Mouser project

ICs

RN-42 HID - Bluetooth modem with HID firmware
BSS138 - MOSFET N-Channel Logic
MCP73831T - Li-Ion battery 4.5V voltage regulator
LM25775 - Adjustable step-up voltage regulator

Other components

LEDs
1x Red (data in to BT)
1x Green (data out of BT)
Some sort of LED for battery status (TODO)
Resistors
7x 10 kΩ
1x 2 kΩ
3x 330 Ω
Capacitors
2x 10 µF (polarized)
2x 4.7 µF
2x 1 µF

btkb's People

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btkb's Issues

References

RN42 HID circuit: https://www.sparkfun.com/products/10938 [Datasheet]
Basic lipo charger: https://www.sparkfun.com/products/10217 [Datasheet]
Lipo fuel gauge: https://www.sparkfun.com/products/10617 [Datasheet]
Boost battery power: https://www.adafruit.com/products/1903 [Datasheet]

Use attiny for battery gauge

http://wp.josh.com/2014/11/06/battery-fuel-guage-with-zero-parts-and-zero-pins-on-avr/
http://www.instructables.com/id/Arduino-ATTiny85-Voltage-Monitor-RGB-LED/
http://electronics.stackexchange.com/questions/154523/attiny85-measuring-internal-voltage

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How mature is this

Hey HokieGeek,

Nice job on this project and all the diagrams, I was just wondering how mature is the project?
Do you have photos or more information on your end product? My biggest complaint about my pok3r is it not being wireless, so I'd be very keen to make mine wireless

Add milestones

1 : simple battery
2 : gauged battery
3 : bypass

Hirose datasheet

https://www.hirose.co.jp/cataloge_hp/ed_ZX_20140804.pdf

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