3 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.
4 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.
5 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.
11 - LUFA sendchar should be buffered and serial_uart.c buffur size is too large(256).
12 - Factroy reset doesn't work; need to test again. 10K pull-up is too high?
13 - Lipo voltage ADC sensing
14 - Lipo charger configuration: fast charge time: USB charger spec?
15 - Low voltage alarm: LED indcates voltage of Lipo
16 - CTS/RTS lines are needed? just connect in loop back if no flow control is needed.
17 - CTS is needed for waking up from deep sleep?
18 - Serial API callback when data are available/received(and when send buffer is available)
19 - Serial API instance several serial ports can be used
20 - DCDC converter: squeaky inducter with onsemi NCP1402
21 - Lipo charger MCP73831: needs capacitor 4.7uF *2
22 - Keymap layer bug: during space is pressed(mousekey) press Fn(HHKB) then release space before Fn, in result HHKB layer is locked(toggled) unintentionally.
25 - USB connection check - 07.01
26 - BT on/off check: whether RX line is pulled up? - checking RTS 07.01
27 - USB/BT switching BT is on -> BT, BT is off -> USB - 07.01
28 - Under voltage lock out UVLO for protection of Lipo - Lipo has discharge protection at 3.100V 07.01
29 - Power saving: HHKB scan, BT radio control - 9h with 850mAh, this is enough 07.01
30 - Power selector doesn't work; Q4 MOSFET leaks from Lipo to USB power line. -- use Schottky instead 07/04
35 Sparkfun Polymer Lithium Ion Battery 850mAh:
36 https://www.sparkfun.com/products/341
38 https://www.sparkfun.com/datasheets/Batteries/063048%20Li-polymer.pdf
40 http://dlnmh9ip6v2uc.cloudfront.net/datasheets/Prototyping/BatteryProtection.pdf
42 over-charge 4.255 4.280 4.305
43 over-charge discover? 4.030 4.080 4.130
44 over-discharge 2.827 2.900 2.973
45 over-discharge discover 3.022 3.100 3.178
47 ADC voltage monitor: voltage divider 10K+10K(0.5)
69 ***ADVANCED Settings***
70 SrvName= keyboard/mouse
96 Serial line: 115200bps, 8bit, 1-stopbit, non-parity, no flow control
97 SSP: 115200bps, 8bit, 1-stopbit, non-parity, no flow control(via Bluetooth)
99 To enter command mode disconnect the module from host and type '$$$'.(you will see 'CMD')
100 To exit type '---'(you will see 'END') and '+' to get local echo.
106 S-,tmkBT // Device name
107 SS,keyboard/mouse // service name
108 SM,4 // Auto Connect DTR mode
109 SW,8010 // Sniff enable 0x10*0.625ms=10ms; 50ms is laggish and not much power save
111 SH,003C // HID register
112 SY,0004 // Transmit power
118 SC,0000 // COD: 000005C0 (see HID spec/Bluegiga doc)
119 SD,05C0 // bit 12-8 7 6 5-0
121 // peripheral pointing keybaord joystick, gamepad, ...
122 SM,6 // Pairing mode: auto connect
123 SM,4 // Master mode: Connection can be controled with GPIO6
137 Cannot supported without apple iAP authentication chip.
145 10 0000 0000(0200) default
146 00 0011 1000(0038) Combo
147 || | | |\_\____ number of paired devices to which the module can reconnect
148 || | | \_______ send out reports over UART (0xFF <len> <data>)
149 || \__\_________ descriptor type
150 |\______________ toggle virtual keyboard on iOS when first connected
151 \_______________ Force HID mode if GPIO11 is high on power-up
161 Out report - Indicator
162 ----------------------
163 0xFE 0x02 0x01 <LED_state>
168 Configuring 10 times per sec
169 Startup/configuration timer 2 times per sec
170 Discoverable/Inquiring/Idle once per sec
176 First, host initiates pairing process and once it is done, auto connect will work thereafter.
178 SM,4 Auto Connect DTR Mode uses GPIO6 to make and break connection(Mode =DTR)
179 confirm: auto connect works and control connection with GPIO6
180 SM,5 Auto Connect ANY Mode (Mode =ANY)
181 each time GPIO is set, make inquiry and connect to the first found device
182 SM,6 automatically reconnect(Mode =Pair)
183 confirm: auto connect works well but difficult to enter command mode.
188 The module enters fast data mode after 'remote configuration timer' window is passed from power on.
189 In this mode the module does not accept '$$$' to enter command mode.
193 Inquiry and Page window Idle or Active (3.1.1)
194 Downside: delay in discovery or connection time
195 SI, // set inquiry scan window(discovery) on/off duty?
196 SJ, // set page scan window(connection)
197 This reduces averaege power >20mA to 5mA(3mA in Sniff mode)
200 Sniff mode is disabled by default and radio is active continuously when connected.(25-30mA)
201 In Sniff mode the radio wakes up intermittently and sleeps in very low power mode.(2mA)
202 SW,<val> // set interval timer(*0.625ms) 0000-7FFF
204 Deep sleep Idle (3.1.2)
205 In this mode the module shuts down completly and only draws about 300uA. To enable this set the most signifant bit(0x8000) of Sniff interaval timer.
206 SW,8320 // deep sleep enable(interval=0x320*0.625=500ms)
207 In normal sleep the firmware is still running in idle mode, and wakes up about 20 times per second to check ports, update LEDs, etc. During deep sleep, the firmware actually stops runnig some tasks and the LEDs only update about once per second.
208 To wake from deep sleep there are three ways: (in worst case wake up takes 5ms)
209 *send a charactor to the UART(first charactor will be lost)
210 *toggle CTS low to high and wait 5ms
211 *wake automatically every slot time(<val>*0.625ms)
212 Once the radio is awake it stay active for exactly 1 second of inactivity and then sleeps again.
213 Downside: latency and data loss
215 Disable Output driver Idle or Active (3.1.3)
216 S%,1000 // set all GPIO pins(0-11) to inputs.
218 Lower Transmit Power Idle or Active (3.1.4)
219 SY,<hex> // transmit power setting(takes effect after a power cycle and reboot)
220 Downside: reducing effective range
223 Optimizig for Latency
224 ---------------------
225 By default the firmware is optimized for throughput.
226 SQ,16 // set latency bit
227 SQ,0 // unset latency bit
230 Configuration timer settings
231 ----------------------------
232 Remote configuration is used for the module to be configured with various commands over Bluetooth(SPP profile only?).
234 The module has remote configuration timer to allow remote configuration over Bluetooth after power up in Slave mode. In Master modes the remote configuration timer is set to 0(no remote configuration). (In Trigger Master mode the timer is used as an idle timer to break the connection after time expires with no charactors receive.)
235 ST,0 // no remote, no local when connected
236 ST,<1-252> // local and remote with timeout in seconds from power up
237 ST,253 // local only without timeout
238 ST,254 // remote only without timeout
239 ST,255 // local and remote without timeout
244 3.7.1.5 Note: To connect with Android phone the modules must wake up 11ms every 2.5seconds.
252 SP,<string> Pin code(alpahnumeric)
253 SQ,<mask> Special configuration(GPIO, discovery mode, low latency, reboot, UART)
254 SR,<hex> Store remote address
255 SR,Z Erase all address
256 SS,<string> Set service name(1-20)**
257 ST,<val> Remote configuration timer(Master:0, Slave:0-255, Triger:as idle timer)
258 SU,<val> UART baud rate
259 SW,<val> low-power sniff mode** deep sleep and wake up every 625us * <val>
260 SX,<0|1> bonding enable only acceps device that matches the stored address
261 SY,<hex> power setting**
262 SZ,<val> non-standard raw baud rate <val>=baud*0.004096
263 S~,<val> Profile 0:SPP, 5:APL, 6:HID
264 S-,<string> Device name -15 alphanumeric charactors
265 S?,<0|1> role switch enable
266 S$,<char> command mode char
267 $|,<hex> low-power connect mode deep sleep/active(discoverable and connectable) cycle
268 D display basic setting
269 E display extended setting
270 GB display the device's Bluetooth address
271 GF display Bluetooth address of connected device
272 GK show connection status
273 GR show remote address for reconnecting
275 G<char> show stored setting
276 + toggle local echo on/off
277 & show GPIO 3,4,6,7(DIP switch)
278 C connect to stored remote address
279 C,<address> connect last address
280 CFI connect and go into fast data mode
281 CFR connect and go into fast data mode
282 CT,<address>,<val> connect to the address and disconnect after val?
285 I,<time>,<cod> inquiry scan with <cod>
288 IS inquiry scan with 001F00
290 K, kill disconnects current connection
292 M show modem signlal status
293 O display other settings
294 P,<car> pass through?
295 Q quiet mode make the module not discoverable
296 Q,0 discoverable and connectable
297 Q,1 not discoverable and not connectable
298 Q,2 not discoverable and connectable
299 Q,? display current quiet mode
301 T,<0|1> pass received data while in command mode
302 U,<baud>,<parity> change UART setting tentatively
303 V display firmware version
304 W wake from quiet mode enable discovery and connection
305 Z deep sleep mode(<2mA)
312 SA,<3,0> - Authentication
313 SC,<hex> - Service Class
314 SD,<hex> - Device Class
316 SF,1 - Factory Defaults
318 SI,<hex> - Inquiry Scan Window
319 SJ,<hex> - Page Scan Window
321 SM,<0-5> - Mode (0=slav,1=mstr,2=trig,3=auto,4=DTR,5=Any)
323 SO,<text> - conn/discon Status
325 SR,<adr> - Remote Address
326 SS,<text> - Service Name
327 ST,<num> - Config Timer
329 SW,<hex> - Sniff Rate
332 SZ,<num> - Raw Baudrate
333 S~,<0-6> - Profile (0=SPP,1=DCE,2=DTE,3=MDM,4=D&S,6=HID
334 S?,<0-1> - role switch
335 S$,<char> - CMD mode char
336 S@,<hex> - io port dir
337 S&,<hex> - io port val
338 S%,<hex> - io boot dir
339 S^,<hex> - io boot val
340 S*,<hex> - pio(8-11) set
341 S|,<hex> - low power timers
343 S=,<hex> - Key mapper
344 S:,<num> - sleep timer
347 E - Extended Settings
348 G<X> - Stored setting
350 GF - BT Address of Last Connection
357 I,<time>,<cod> - Device Scan Inquiry
359 K, - Kill (disconnect)
360 L, - toggle local echo
362 Q - Quiet (no discovery)
364 T,<0,1> - send data in CMD mode
365 U,<rate>,<E,O,N> - Temp Uart Change