Preliminary Buddy-Link (B
Contents
1. Link receives the acknowledgement it flashes all four LEDs appears white for a tenth of a second to indicate that your Buddy received your signal If your B Link does not receive an acknowledgement it resends your signal and waits again for an acknowledgement The absence of a white flash indicates that your B Link still did not receive an acknowledgement Signal Strength Range Indication Your B Link measures the signal strength whenever it receives a valid message The color of the LED that lights while the Button is pressed indicates the signal strength Green means ample signal strength yellow means reduced and red means marginal or no signal strength The signal strength is only a crude measure of distance to your Buddy but the stronger the signal is the closer your Buddy is Moreover if your Buddy is out of range then you cannot signal each other in case of an emergency You can display your B Link s current estimate of signal strength and thus distance to your Buddy without sending a signal Simply press and hold the Button until whichever LED is lit flashes on and off Then 12 26 07 6 release the button If you continue to hold the Button for more than two seconds your B Link will start transmitting on the Public channel To maintain a current estimate of signal strength your B Link will automatically ping your Buddy s B Link once per minute but no LEDs will flash Ambient Light Sensing Your B Link2. and twinkle their LEDs when they receive the channel code If any of the other units do not mate successfully repeat the previous step Checklist Above Water e Check that all B Links have adequate battery charge e Confirm that all B Links are mated together Entering Water e Wipe the Virtual Button depression to remove any bubbles After Dive e Rinse all B Links and wipe them dry Indicators Above Water Low Power Mode One of the LEDs flashes faintly once per second The color indicates battery charge Blue Full battery charge Green Battery charge good for multiple dives Yellow Recharge after current dive Red Recharge before using Unit will not activate until recharged Battery Charge When first activated one of the LEDs flashes for a second The color indicates battery level as per Low Power mode Mating Signal The receiving units will flash all 4 color LEDs 12 26 07 10 Underwater Signal Strength The green yellow or red LED lights up whenever the Button is pressed The color indicates signal strength Green Ample signal strength Buddy nearby Yellow Reduced signal strength Red Marginal or no signal Look for Buddy Both Above and Underwater Activated Transmitting In Charging Station Charging Fully Charged 12 26 07 The blue LED on the top flashes once every 4 seconds The Blue Top LED lights up while transmitting a User initiated signal The yellow LED in
3. the B Link glows continuously The green yellow LED in the B Link flashes on and off once per second 11 Specifications Battery Contacts Encapsulation Modulation Radiated Power Weight 120 mAh Lithium Polymer greater than 500 recharges Tin plated stainless steel Polyurethane Frequency Shift Keying of a 58 KHz ultrasonic carrier 1 watt episodic 18 9 grams Affinity Devices Inc 5950 Lucas Valley Road Nicasio CA 94946 415 662 2055 Phone 415 662 2056 Fax www affinitydevices com 12 26 07 12 12 26 07 13 12 26 07 14 12 26 07 15 LED Matrix Indicators Faint Flash Low Power Full battery Battery good for Recharge after Recharge battery A LE Turning on Full battery Battery good for Recharge after mie dre every 4 seconds Transmitting While Button is Pressed Signal Strength Ample signal strength Buddy nearby strength look for Buddy Mating Signal 4 Color Flash In Charger Recharged Charing Signal Responses Single Tap 4 color Twinkling random mix Double Tap Triple blink in sequence G Y R Press amp Hold 2 color Twinkling R Y Group Leader 4 color mix Whooshing 12 26 07 16
4. will take less than 2 hours Proper Care Between dives your B Link should be rinsed and dried Leaving your B Link where it will stay wet will cause the battery to run down since B Links are always active while underwater Avoid dropping or banging your B Link on hard surfaces The ultrasonic transducer is made of a ceramic material and can crack if abused The suction cup is User replaceable if necessary Use a screwing motion to remove the old one and insert the supplied replacement Mating and Un Mating The code that is used to provide separate private channels is derived from the serial number of the B Link that initiates the mating This can create complications in very rare situations If diver Alice uses her B Link to initiate mating with divers Bob and Cherie and then initiates mating with new diving Buddy Dave then both pairs of Buddies Alice Dave and Bob Cherie will be using the same code Either Dave should initiate mating with Alice and or Bob or Cherie should mate with each other Whenever you trigger mating your B Link s code will be reset according to its own serial number If you inadvertently trigger mating 12 26 07 8 without your Buddy s B Link nearby this cannot happen underwater you should explicitly mate your B Link with your Buddy s unit again Diving with a Group Divemaster In the Getting Started section the instructions for Mating Your B Links configured your Buddy s B Link and
5. yours to work the same way with Channel 1 one tap and Channel 2 two taps This section explains how to configure a group of B Links such that Channel 1 acts like a party line and Channel 2 serves as a directed link to and from the Group Leader or Divemaster By party line is meant that a signal sent by any member of a group with mated together B Links will twinkle the LEDs of all other members A directed link means that any member of a group can trigger a whooshing light pattern in the leader s B Link only whereas the Group Leader can trigger a triple blink pattern in all other member s B Links When the Divemaster is the Group Leader the directed link feature can allow any of the divers to get the Divemaster s attention if for example they are running low on air Mating Channel 2 for Group Leader The above water procedure is the same as normal except the Group Leader s Button is tapped twice as follows e Activate all units by touching both of the terminals on the top of each unit with a moistened finger Position the units a few inches apart e Press and hold the Button on the Group Leader s B Link until whichever LED is lit turns off about 2 seconds Release the Button and then tap it twice within the next 2 seconds The unit will transmit a special mating signal followed by its channel code to the other B Links 12 26 07 9 e The other B Links should flash all 4 color LEDs in response to the mating signal
6. HARGING STATION aca 11 SPECIFICATIONS s sceesessscissnn csnesnesessesssuusnseneessuscenenenssnsussnnsennsssnessnssensnnensessnuneeneee 12 MEA indiens ire NER EDER SE tas codec doses o das e SE BESES ESS nes dos etes ee 16 INDICATORS Ne cn 16 SIGNAL RESPONSES nica tele 16 Single Tap EC 16 Double Tapioca tl nda 16 Press amp Hold duda een e es itte e e e POE ne eue 16 Group Le der 3 bd 16 12 26 07 2 Introduction Since the invention of scuba gear divers have faced the dilemma of how to draw the attention of ones buddy when he or she is more than an arm s length away Various sound making devices are available but they are easily masked by breathing and ambient noise When they are loud enough to be reliably heard they are a nuisance to other divers At last divers now have a convenient and truly effective means to signal their buddy underwater The Buddy Link B Link transmits ultrasonic signals back and forth between divers through a thumb size device that easily attaches to the periphery of a mask The B Link alerts your diving Buddy by generating a tone and flashing lights in his her B Link when you tap your unit Getting Started The B Link uses a suction cup to attach to the front of your diving mask in your peripheral vision There are four different color LEDs red yellow green and blue located behind the suction cup They are used for signaling configu
7. Preliminary Buddy Link B Link User Manual 16 December 2007 12 26 07 INTRODUCTION esussesnesnenesnennenesnennenesnennenennennenesnennenennennenennssennennenennennsnesnennesnsnenane 3 GETTING STARTED 3 THE VIRTUAL BUTTON conoconononononononononononononononononononononononnnnononono n 4 TURNING YOUR B LINK ON OFF 4 MATING YOUR B LINKS eese eene nnn e reen seere n ene a nnn nnne annu 5 CHANNELS RC 5 FEATURES 6 AUTOMATIC ACKNOWLEDGEMENT AND RESEND eene eene nnn nnn 6 SIGNAL STRENGTH RANGE INDICATION eee en eene nnn nnn nnn nnn nnn nnn 6 AMBIENT LIGHT SENSING eese eene tnr 7 RECHARGING THE BATTERY tasas esses eese en vene 7 PROPER CARE oi MATING AND UN MATING DIVING WITH A GROUP DIVEMASTER ee esee ee 9 MATING CHANNEL 2 FOR GROUP LEADER eeeee 9 CHECKIIST 10 ABOVE WATER 535015 envie dE 10 ENTERING WATER id 10 AFTER DIVE CE 10 INDICATORS 10 ABOVE WATER RMS A tete 10 UNDERWATBR z URINE NEN NEIN QN EA NEIN SECRET REESE QUE 11 BOTH ABOVE AND UNDERWATER eere nnn nnn nnne nnn nnn n ntn 11 IN C
8. e water by touching both of the terminals on the top of the unit with a moistened finger Dipping the unit in water also works When the B Link first turns on it flashes one of the LEDs for a second The LED color indicates the battery charge see Indicators below The B Link automatically enters Low Power Mode after 5 minutes of inactivity above water It is always on while submerged In Low Power mode one of the LEDs flashes faintly once per second The LED color indicates the battery charge see Indicators below Your B Link can be forced to enter Low Power mode by pressing and holding the 12 26 07 4 Button for approximately 10 seconds until the unit flashes all four LEDs in quick sequence If the B Link has shut down because of insufficient battery charge the red LED will flash faintly every 4 seconds and the unit will refuse to wake up At this point the only way to activate the unit is to recharge the battery Mating Your B Links B Links use 500 different codes such that multiple pairs or groups of divers can have their own private communication link in the same area Before you use your B Links for the first time you must mate them so that they use the same code The procedure is performed above water as follows e Activate all units by touching both of the terminals on the top of each unit with a moistened finger e Position the units a few inches apart Choose one unit Press and hold its Button until whic
9. hever LED is lit turns off about 2 seconds Release the Button and then tap it once within the next 2 seconds The unit will transmit a special mating signal followed by its channel code to the other B Links This will take approximately 2 seconds e The other B Links should flash all 4 color LEDs in response to the mating signal and twinkle their LEDs when they receive the channel code If any of the other units do not mate successfully repeat the previous step Note that this procedure works with a group of B Links as well as a pair Simply position all of the B Links close together and perform the mating procedure above Channels You may send two different private signals to your buddy s B Link by tapping once or twice One tap causes the LEDs on your Buddy s unit to twinkle Two taps causes the green yellow and red LEDs to triple 12 26 07 5 blink in sequence In both cases when your Buddy s unit receives your signal his unit will generate a warbling tone for approximately Y2 second There is a third Public channel that is activated while underwater by pressing and holding the Button for about 3 seconds or tapping the Button 3 times Any B Links within range independent of their mated codes will respond by twinkling their red and yellow LEDs Features Automatic Acknowledgement and Resend When your Buddy s B Link receives a signal from you it automatically sends an acknowledgement back to you When your B
10. ring and readout Also there is a blue LED located on the top of the B Link Top Blue which serves as a beacon 12 26 07 3 The Virtual Button The B Link is controlled via a single virtual Button This is a depression located on the side opposite the suction cup and indicated by the B Link name and two concentric circles When you touch the Button your finger blocks an infrared light beam which activates it There are no moving parts or seals to leak underwater When your B Link recognizes that you have pressed the Button it turns on one of the LEDs as feedback to you Like clicking the single mouse button on an Apple Macintosh the B Link uses Tapping of its Button once or multiple times to initiate different functions The Button may also be pressed and Held to perform certain operations For proper recognition of multiple taps your tapping speed should be constant 1 e the duration of each tap should be roughly the same Taps single or multiple are recognized when you stop tapping and release the Button When first entering the water wipe the Virtual Button depression to remove any bubbles Bubbles adhering to the light beam windows can scatter the beam such that the Button appears to be pressed Turning Your B Link On Off The B Link is activated automatically when submerged While activated the blue LED on the top of the unit flashes once every 4 seconds The B Link can be activated abov
11. senses the ambient light level and adjusts the brightness of its LEDs accordingly This feature will dim the LEDs for night wreck or cave diving Recharging the Battery Your B Link uses a rechargeable lithium polymer battery that is capable of operating for up to 15 dives 600 minutes before recharging depending on how often you communicate with your Buddy However the maximum range of operation is obtained with a fully charged battery To recharge your B Link remove the unit from your mask and unhook the safety lanyard from the stainless steel ring Insert the top end with the ring contacts into the Charging Station and align the suction cup with the notch in the Charging Station Press the B Link into the Charging Station until you feel it click into place Connect the small end of the supplied USB cable to the connector at the base of the 12 26 07 7 Charging Station Connect the larger end of the USB cable to the supplied USB AC power adapter or to any USB port A normal USB port should be capable of supplying the necessary 100 ma of current When power is supplied to the Charging Station a green LED in the base will glow While the battery is recharging the yellow LED in the B Link will glow If the battery is mostly discharged the yellow LED will delay glowing for a minute When the battery is fully recharged the green LED in the B Link will flash on and off once per second Charging a fully discharged battery
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