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ICStation DIY Kits NE555 Duty Cycle and Frequency Adjustable Module

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$1.99 $1.39
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Price$1.35$1.29$1.15
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Description

NE555 adjustable pulse generator

NE555 adjustable pulse generator is based on NE555 chip, built into an oscillator circuit.

1. Principle
The multivibrator composed of 555 timer, and waveform as shown in figure After turning on the power supply, power supply VDD through R1 and R2 for capacitance C charging, when Uc < 1/3 VDD, oscillator output Vo = 1, discharge tube.

After the Uc charge to 2/3 or more VDD, oscillator output Vo flip to 0, the discharge tube conduction, make the discharge end (DIS) grounding, capacitance C through R2 to discharge, bring down the Uc.

When reduced to a third or less VDD Uc, oscillator output Vo and flip into 1, discharge tube and as of right now, make the discharge end (DIS) not grounding, power VDD through R1 and R2 and recharging the capacitance C, made up from a third VDD Uc two-thirds VDD, trigger and flip, so the cycle, so as to get continuous variation on the output side Vo oscillation pulse waveform.

Pulse width 0.7 R2C TL material, determined by the capacitance C discharge time;TH = 0.7 (R1 + R2) C, is determined by capacitance C charging time, pulse period T material TH + TL

2. Directions for use
The input voltage: DC5 ~ 12 v.

The amplitude in: 4.2 V to 11.4 V

3. Functions and Diagram

List of components:

The serial number

Component

Label

Footprint

Value

Number

1

Resistance

R1

AXIAL-0.4

1.5K

1

2

Ceramics capacitors

C1,C2

RAD-0.1

104

2

3

Ceramics capacitors

C3

RAD-0.1

102

1

4

Glowing red LED 5 mm

D1

DIP

 

1

5

NE555

U1

DIP-8

 

1

6

8P IC seat

     

1

7

Potentiometer

VR1,VR2

   

2

8

50V 100UF Electrolytic capacitor

C4 ,C5

RB.15/.3

100UF

2

9

50V 1UF Electrolytic capacitor

C6

RB.1/.2

1UF

1

10

Row needles

     

0.5

11

Jumper cap

     

1

12

PCB

     

1

Test By ICStation Partner E-Station:

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Quantity5+10+30+
Price$1.35$1.29$1.15

Feedback

By
Rating: [4] 4 of 5 Stars! Date Added: 2017-11-19 11:12:18
Great little module to learn soldering, quite easy to build as it has only a few components and a very cute little PCB (far far away from cheap raw common DIY PCBs). It's my first DIY module I've soldered :). Jumper meaning on PCB itself would have been great, as well as more documentation on how to use it, as this module is a lot more than just a learning one, it can be actually useful for various vehicles related display like blinked set of LEDs to improve safety at night. Hope to see more ICStation made modules soon !
By
Rating: [5] 5 of 5 Stars! Date Added: 2016-05-29 16:17:18
Very cheap and it works perfect.
By
Rating: [5] 5 of 5 Stars! Date Added: 2015-06-12 02:27:43
Only missing thing is the description of the jumper block

First we should say that ICStation doesn't accept any form of pay on delivery.Items used to be shipped after receiving the order info and payment.

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1. Yanwen / YunExpress / 4PX / China Post Airmail Service

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $5 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. DHL/FedEx Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@icstation-team.com

(2) Shipping Time & Delivery Time

Shipping time: 1-3 days
Delivery time: 5-10 working days (about 1-2 weeks) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver , please pay attention to the arriving time of the package. 

Note:

1) APO and PO Box Addresses

We strongly recommend that you provide a physical address for order delivery. 
Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.


3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

YunExpress / Yanwen / China Post: www.17track.net/en
FedEx: www.fedex.com

 

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ICStation DIY Kits NE555 Duty Cycle and Frequency Adjustable Module
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