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3 Digit LED Counter (incl box)

Documentation in acrobat format (K1)

cps1.jpg
Two or more counter modules may be plugged together with the 6-pin sockets and harness provided. Uses a single-unit 3-digit LED display and is built around the 14553 & 14511 chips. Box is provided. The separate COUNTER MODULE shows how to use the kit as a counter. Has COUNT & RESET switches with debounce circuit built in to eliminate problems from noisy switches. May cut off and relocate display. The kit includes data sheets and instructions. 9V battery operation. PCB1 size 1.94"x3.13" (49x78mm). PC2 size 1.31"x 1.38" (33x35mm) (CPS1)
 
Quantity
Price
1 – 9$21.80
10 – 99$20.25
100 +$19.58

  (Kit - Basic Soldering Required)  
  CPS1  
  5  
 
 
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IR Door Minder
 
This kit uses an infrared (IR) beam to monitor door & passage-ways or any other area. When the beam is broken a relay is tripped which can be used to sound a bell or alarm. Suitable for detecting customers entering a shop, cars coming up a driveway, etc. The IR beam is very strong. Distances over 25 yards can be monitored with this kit. A 12VDC unregulated supply is required to power the kit. A 12V wall adaptor is fine. Only one power supply needs to be used to power both units. The relays in this kit are rated to switch mains voltages. With power applied the relay is normally operated and only releases when the beam is broken. The relay contacts labelled “NO” (Normally Open) and “NC” (Normally Closed) refer to when the relay is released. The plastic tube is to put over the IR LED to direct its beam. This is needed when the barrier is only a few yards apart. IR transmitter PCB size:: 45mm x 30mm (1.77" x 1.18")
IR receiver PCB size:: 50mm x 48mm (1.97" x 1.89") (CPS130)
Quantity
Price
1 – 9$22.23
10 – 99$21.06
100 +$19.31

  (Kit - Basic Soldering Required)  
  CPS130  
  6  
 
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4 digit LED up/down counter using mcu
 
4 Digit Up / Down Counter using an Atmel AVR 90S1200 micro-controller. Reset, up, down, disable and overflow to a second counter. 4 digit multiplexed display. Oscillator contained within the micro. The first in a series of counters using uC's. This kits clearly shows how uC's can more than replace a host of ordinary logic IC's. This is a single-sided PCB.
9-15 VDC operation.
Current consumption of 20mA to 40mA
PCB size: 63mm x 50mm 2.48” x 1.97”. (CPS129)
Quantity
Price
1 – 9$23.74
10 – 99$21.32
100 +$21.32

  (Kit - Basic Soldering Required)  
  CPS129  
  8  
 
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Mini-Vox and Relay kit  (Out of Stock)
 
The idea behind a VOX (voice activated switch) is that instead of the user pressing a switch to activate a relay, the sound of the users voice itself activates the relay. This gives hands-free control over devices like tape recorders. Power supply needed: 12VDC center positive 2.5mm jack. Electret microphone to pick up the sound is included. PCB size: 44mm x 48mm (1.73inch x 1.89inch).
(CPS126)
Quantity
Price
1 – 9$13.11
10 – 99$12.42
100 +$11.39

  (Kit - Basic Soldering Required)  
  CPS126  
  0  
 
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