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ACCESS-TOUCH-EVAL, Flexipanel ACCESS-TOUCH-EVAL Dáileacháin - Electronics-ic.com
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Is íomhá le haghaidh tagartha amháin.
Request Price & Lead Time
Two 25mA Pins and Buzzer Outputs
2 V ~ 5.5 V
PIC16F631T-E/SS-ND - IC PIC MCU FLASH 1KX14 20SSOP
PIC16F631-E/SS-ND - IC PIC MCU FLASH 1KX14 20SSOP
PIC16F631-E/SO-ND - IC PIC MCU FLASH 1KX14 20SOIC
PIC16F631-E/P-ND - IC PIC MCU FLASH 1KX14 20DIP
PIC16F631-E/ML-ND - IC PIC MCU FLASH 1KX14 20QFN
PIC16F631-I/SS-ND - IC PIC MCU FLASH 1KX14 20SSOP
p1 of 4 7-Sep-08 Access-Touch HW140-1 www.firmwarefactory.com
Touch sensitive keyed access controller
AccessTouch is an integrated combination key
access controller featuring tough-sensitive keys for
vandal-proof operation. An accompanying design
blueprint is available for a complete low cost,
AccessTouch uses capacitive touch sensing
technology. The PCB keyboard shown can be
overlaid by a non-metallic covering. It
automatically calculates signal averages to
compensate for track capacitance, water splashes,
etc. A buzzer output provides audio feedback as
AccessTouch is firmware for the PIC16F631
microcontroller and is available as a pre-
programmed chip from electronics distributors or
as a firmware download from www.hexwax.com.
When the correct code is entered, the door release
output is activated for a fixed time delay. The
sequence of keys pressed prior to entering the
To change the access code, an electrical switch is
closed and the new code is entered twice. LEDs
indicate ‘Open’, ‘Closed’ and ‘Set Code’ states. All
LEDs turn off when the device enters a sleep
Tiny volume BOM cost
Vandal-proof design, no parts need to be
Codes may be up to 8 digits
Audio feedback on touch press
Safe Controller mode available
Table 1. Electrical Specifications
Supply voltage Vdd 2.0 – 5.5 VDC
Current, sleep scan mode, 3V Vdd ~50uA
Operating Temperature –40°C to 85°C
2 Marshall St, 3rd Floor
London W1F 9BB, UK
TouchD .. . .
ACCESS-TOUCH-EVAL Achoimre na n-ábhar
p1 of 4 7-Sep-08 Access-Touch HW140-1 www.firmwarefactory.com AccessTouch TM Touch sensitive keyed access controller Summary AccessTouch is an integrated com bination ke y access controller f eaturing tough-se nsitive k eys for vandal-proof operation. An accom panying design blueprint is available for a com plete low cost, access control product. AccessTouch uses capacitive touch sensin g technology. The PCB keyboard sho wn can be overlaid by a non-m etallic covering. It automatically calculates signal averages to compensate for track capa citance, water spl ashes, etc. A buzzer output provid
p2 of 4 7-Sep-08 Access-Touch HW140-1 www.firmwarefactory.com Device Pinout Table 2. Pinout Table Name Description Click 1, 2 Buzzer driver ClosedLED ‘Closed’ LED outpu t Rst# / Vpp Reset input, active low / Vpp programming inpu t Lock Lock release, a ctive high Lock# Lock release, a ctive low OpenLED ‘Open’ LED output PGD PGD progra mmi ng input SetLED ‘Set Code’ LED output SetSw Set Code input control, a ctive high Touch0 Touch sensor input 0 (Keys 1, 2, 4, 5) PGC progra mmi ng input Touch1 Touch sensor input 1 (Keys 0, 2, 3, 6) Touch2 Touch sensor input 2 (Keys 0, 4, 7, 8) Touc
p3 of 4 7-Sep-08 Access-Touch HW140-1 www.firmwarefactory.com sequences longer than the minim um co de length cannot be specified, e.g. 12341234. Typically the set switch will only be accessible from inside the secured-access area, or will be implemented as a key switch. The code set by default is 123. Lock, Lock# The lock outputs control the access lock. These pins can drive up to 25mA, sufficient for a small relay. Click1, Click2 Connect to a buzzer to provide audio feedback: High note: Button press registered Medium note: Code set Low note: Lock open These pins can drive up to 25mA, so a c
p4 of 4 7-Sep-08 Access-Touch HW140-1 www.firmwarefactory.com Programming AccessTouch AccessTouch is programm ed into the microcontroller b y inserting the TEAclip per into its connector. The circuit must be powered and the TEAclipper m ust be held in place until the LEDs stop flashing and the green LED glows steadil y. The voltage Vdd during programm ing m ust be 4.5V – 5.5V. Since the programm ing time is very fast, no programm ing sock et is required for the TEAclipp er. It may be leaned against f ive plate-thro ugh holes as depicted in figure 4. 1mm hole dia 2.54mm spacing Pin 1 indicat
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