Roving RN-42
============
-07/16 After fix of voltage dividor on GPIO6, had a trouble that it could not send a char to BT module, though could receive.
- Found R8 had wrong 1K resistor and changed to 10K, after that it can send to the module again. Not sure how it had sent with the wrong 1K before.
-
-
TODO
----
-- Factroy reset doesn't work; need to test again. 10K pull-up is too high?
-- Lipo voltage ADC sensing
-- Lipo charger configuration: fast charge time: USB charger spec?
-- Low voltage alarm: LED indcates voltage of Lipo
-- CTS/RTS lines are needed? just connect in loop back if no flow control is needed.
-- CTS is needed for waking up from deep sleep?
-- Serial API callback when data are available/received(and when send buffer is available)
-- Serial API instance several serial ports can be used
-- DCDC converter: squeaky inducter with onsemi NCP1402
-- Lipo charger MCP73831: needs capacitor 4.7uF *2
+Power saving:
+- When not connected in a few minuts get into deep sleep to save battery life
+- CTS is needed for waking up from deep sleep? How deep sleep is activated?
+
+Improving:
+- Status LED; connecting, liked, low battery, sleeping, deep sleeping
+- Battry voltage display by command; like full(solid), medium(blink), low(flash)
+- move rn42 to protocol directory when it becomes reusable stack
+- LUFA sendchar should be buffered and serial_uart.c buffur size is too large(256).
+
+Testing:
+- Factroy reset doesn't work; need to **test again** 10K pull-up is too high?
+- Lipo voltage ADC value is not stabilized
+- DCDC converter: squeaky inducter; try other inductors
+
- Keymap layer bug: during space is pressed(mousekey) press Fn(HHKB) then release space before Fn, in result HHKB layer is locked(toggled) unintentionally.
+
DONE:
+- Lipo charger configuration: fast charge time: USB charger spec? -- used 2kohm
+- use LED of charger to alarm low battery. LED should be powered directly from Lipo? - cancel; powered from VUSB
+- Use RTS in serial_uart.c to resolve missing chars from help message of RN-42 - done
+- CTS/RTS lines are needed? just connect in loop back if no flow control is needed. - done
+- add IO pin to charger status CHRG; LED control(low) and detect charge status(input HiZ) 07.24
+- LINKED: add trace on PIO2 to PF6 07.24
+- Lipo voltage ADC sensing
+- Lipo charger MCP73831: needs capacitor 4.7uF *2
- USB connection check - 07.01
- BT on/off check: whether RX line is pulled up? - checking RTS 07.01
- USB/BT switching BT is on -> BT, BT is off -> USB - 07.01
+TROUBLE SHOOT
+-------------
+07/16 After fix of voltage dividor on GPIO6, had a trouble that it could not send a char to BT module, though could receive.
+ Found R8 had wrong 1K resistor and changed to 10K, after that it can send to the module again. Not sure how it had sent with the wrong 1K before.
+
+07/18 On Linux, had an USB related trouble; keyobard or console didn't work for some reason. Changing PID cured this problem. Very annoying, took very long time before resolved it.
+
+
+
+Lipo
+----
+850mA lasts around 9 hours(07/28)
+
+Sparkfun Polymer Lithium Ion Battery 850mAh:
+https://www.sparkfun.com/products/341
+Lipo Cell spec:
+https://www.sparkfun.com/datasheets/Batteries/063048%20Li-polymer.pdf
+Protection spec:
+http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/BatteryProtection.pdf
+ min typical max
+ over-charge 4.255 4.280 4.305
+ over-charge discover? 4.030 4.080 4.130
+ over-discharge 2.827 2.900 2.973
+ over-discharge discover 3.022 3.100 3.178
+
+ADC voltage monitor: voltage divider 10K+10K(0.5)
+ ADC=V*0.5/2.56*1024
+
+ V ADC
+ ------------------
+ 4.20 0x347(839)
+ 3.10 0x26b(619)
+
+
+
Configuration
-------------
Apple iOS
---------
-Cannot supported without apple iAP authentication chip.
+Keyboard can be used with iPhone, but mouse cannot.
+To operate iOS with keyboard is not so useful, though.
+There may be iOS specific scancodes?
HID flag register
0100: Joystick
1xxx: reserved
+
Out report - Indicator
----------------------
0xFE 0x02 0x01 <LED_state>
V display firmware version
W wake from quiet mode enable discovery and connection
Z deep sleep mode(<2mA)
+
+
+
+help
+----
+*** SET COMMANDS ***
+SA,<3,0> - Authentication
+SC,<hex> - Service Class
+SD,<hex> - Device Class
+SE,<1-16> - UUID
+SF,1 - Factory Defaults
+SH,<hex> - HID flags
+SI,<hex> - Inquiry Scan Window
+SJ,<hex> - Page Scan Window
+SL,<E,O,N> - Parity
+SM,<0-5> - Mode (0=slav,1=mstr,2=trig,3=auto,4=DTR,5=Any)
+SN,<name> - Name
+SO,<text> - conn/discon Status
+SP,<text> - Pin Code
+SR,<adr> - Remote Address
+SS,<text> - Service Name
+ST,<num> - Config Timer
+SU,<rate> - Baudrate
+SW,<hex> - Sniff Rate
+SX,<1,0> - Bonding
+SY,<hex> - TX power
+SZ,<num> - Raw Baudrate
+S~,<0-6> - Profile (0=SPP,1=DCE,2=DTE,3=MDM,4=D&S,6=HID
+S?,<0-1> - role switch
+S$,<char> - CMD mode char
+S@,<hex> - io port dir
+S&,<hex> - io port val
+S%,<hex> - io boot dir
+S^,<hex> - io boot val
+S*,<hex> - pio(8-11) set
+S|,<hex> - low power timers
+S+,<num> - DTR timer
+S=,<hex> - Key mapper
+S:,<num> - sleep timer
+*** DISPLAY ***
+D - Basic Settings
+E - Extended Settings
+G<X> - Stored setting
+GB - BT Address
+GF - BT Address of Last Connection
+GK - Connect Status
+G& - I/O Ports
+V - Firmare version
+*** OTHER ***
+C,<adr> - Connect
+F,1 - Fast Mode
+I,<time>,<cod> - Device Scan Inquiry
+J - Hide Pin Code
+K, - Kill (disconnect)
+L, - toggle local echo
+P,<text> - Pass Thru
+Q - Quiet (no discovery)
+R,1 - Reboot
+T,<0,1> - send data in CMD mode
+U,<rate>,<E,O,N> - Temp Uart Change
+Z - low power sleep
+& - Read switches
projects / tmk_firmware.git / blobdiff