4 Digit Up-Down Event Counter 4 Digit Up-Down Event Counter Quasar Electronics Low cost Up-Down event counter. 4 digit LED display (expandable to 8 digits). Counts either Up or Down. Range 0000 to 9999. Inputs: Reset - Up - Down - Disable. Outputs: Overflow (low pulse on wrap-around). 9-15Vdc powered... Electronics > Circuit Components > Printed Circuit Boards > Development Boards quasar_diy_k129 3129KT 29.94 Quasar Electronics Limited
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4 Digit Up-Down Event Counter

4 Digit Up-Down Event Counter
4 Digit Up-Down Event Counter
4 Digit Up-Down Event Counter
4 Digit Up-Down Event Counter
AS3129KT - 4 Digit Up-Down Event Counter
Ability Level 2: ModerateMade in BritainProduct Formats Available : Pre-Assembled Module (AS) or
Self-Assembly Electronic Kit ( Soldering Required)

Low cost Up-Down event counter with 4 digit LED display (expandable to 8 digits). Count either Up or Down from 0000 to 9999.

Inputs are triggered by any make contact so can be used to count pulses from switches, relays, open collector outputs or simply push buttons. For example, a turnstile micro switch or relay output from an infra-red security beam (our kit 3130) counting cars, people or items on a conveyor belt. The input must opened before another count can be registered.

Overflow output pulses low when the count wraps around to zero. This output allows two counters to be connected together to make an 8 digit counter.

Specifications
Supply9...15Vdc
(e.g. Order Code 660.446UK with connector 778.106)
Current20 - 40mA max.
Count Range0000 to 9999 (expandable to 8 digits - see below)
Count speed30 to 35 per second max.
Debounce Time~15msec for each low/high or high/low
InputsReset / Up / Down / Disable
Input triggermake contact e.g. switches, relays, open collector outputs or simply push buttons
Overflow outputEnables 2nd counter connection for 8 digit display
Display4-digit 7-segment with decimal point, 14mm RED LED
Board Dimensions51x64mm
Connections10 pin SIL header
Product FormatsSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
DocumentationUser Manual
Options
  • The pre-programmed firmware chips supplied with the kit or assembled formats below can also be purchased separately on our Firmware Chips page.
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AS3129KT - 4 Digit Up-Down Event Counter Selection

SELF-ASSEMBLY Up/Down 4 Digit LED Counter Electronic KIT
Quasar 3129KT - SELF-ASSEMBLY Up/Down 4 Digit LED Counter Electronic KIT
£20.79 £16.63 +VAT, £19.96 Inc | In Stock (UK Warehouse)
PRE-ASSEMBLED Up/Down 4 Digit LED Counter Module
Quasar AS3129 - PRE-ASSEMBLED Up/Down 4 Digit LED Counter Module
£27.46 £23.30 +VAT, £27.96 Inc | In Stock (UK Warehouse)

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