Description 4 x NE555 pulse frequency adjustable module Square/square wave signal generator Specification: 1. use as a square-wave signal generator, generate square wave signals used for experimental development. 2. to generate square wave signal driving stepping motor drive. 3. adjustable pulses generated for use by the MCU. 4. adjustable pulse control related circuits. Description: size: 2.9CM*3.6CM 1, Main chip: NE555; 2, Input voltage: 5V-15VDC. (When 5V power supply, output current =15MA; when 12V power supply, output current=35MA); 3, Input current: >= 100MA 4, the output amplitude: 4.2V V-PP to 11.4V V-PP. (according to the different input voltage, output will be different) 5, Maximum output current: >= 15MA (5V power supply, when V-PP is greater than 50%), >= 35MA (12V power supply, when V-PP is greater than 50%) Characteristics and advantages: 1, output with LED indication(low level LED ON, high level LED OFF, at lower frequencies than the LED flashing); 2, the output frequency range level can be selected, the output frequency adjustable; Low frequency: 1Hz~50Hz MF: 50Hz~1kHz HF: 1KHz~10kHz HF: 10kHz~200kHz 3, the output duty cycle can Adjustable(Small), adjustable duty ratio will change the frequency. 4, the output frequency adjustable; Cycle T=0.7 (RA+2RB) c RA, RB for the 0-10K adjustable; C=0.001UF low frequency gear; C=0.1UF MF gear; High frequency in document C=1UF; C=100UF high frequency gear, wave frequency buyers can own calculation. Package Including NE555 pulse frequency adjustable module x 4 Recommended Products Similar Product The AMS1117 3.3V power supply module $2.65 Time Left:25d 10h 55m AMS1117 5V power supply module Input: 6.5-12V Output: 5V $2.75 Time Left:25d 07h 58m DC-DC Step-Down module 12V switch to 5V 3.3V For LCD/Car/Radio/LED power supply $2.88 Time Left:23d 13h 19m DC-DC Power Supply DIY Mobile Power Module Input:2-5V Output:5.0-5.2V $2.99 Time Left:6d 23h 54m Breadboard Power Supply Module Compatible with 5V 3.3V $3.25 Time Left:25d 10h 57m DC-DC LM317 ultra low ripple Stepless adjustable Input:63V-4.5V Output:60V-1.5V $3.35 Time Left:11d 11h 05m B0505S-1W DC-DC module power module isolation module $3.65 Time Left:24d 05h 28m LM2596 adjustable DC-DC step-down module input 4.5-30V output 1.25-26V $3.65 Time Left:13d 13h 49m DC-DC step-down power supply module $3.88 Time Left:23d 00h 14m LM2596S DC-DC step-down module Power Supply Module Input: 4.5-35V Output:3-33.5V $3.88 Time Left:5h 21m DC-DC Power Supply USB Charging Buck Board Input:7-16V Output:4.8-5.3V $3.99 Time Left:6d 23h 54m Rechargeable DC-DC buck Vehicle power supply Input:4.5-25.5V Output:3V-24V $3.99 Time Left:2d 13h 18m LM2577 DC-DC step-up Module mobile power board 3-34V to 4-35V Free shipping $4.88 Time Left:13d 13h 08m DC-DC Lithium Boost Module Output Adjustable DIY Mobile Power Module $5.45 Time Left:6d 23h 54m DC-DC LM2596HV Adjustable Buck Power Supply Module Input:4.5-60V Output:3-35V $5.75 Time Left:11d 11h 06m LED driver with constant current power supply step-down Input:5-35V Out:1.25-30V $5.88 Time Left:24d 12h 41m Automatic Up-Down Module Solar Power panels Adjustable voltage Power Supply $7.35 Time Left:5h 45m Mobile notebook car power DC-DC 10-32V to 12-35V Module $8.45 Time Left:6d 23h 54m LM2596 LM2577 Automatic buck-boost With charging Constant current&Voltage $8.45 Time Left:14d 06h 40m LM2596 DC-DC Step-down module With Digital display Input / output voltage $8.99 Time Left:21d 07h 14m Visit my eBay Store: worldwindow2010< img src="http://pics.ebaystatic.com/aw/pics/spacer.gif" border="0" height="1" width="12"> Check out my other items! Payment We accept Paypal only, It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping We Ship to Worldwide. Orders processed within 24-48 hours of payment verification. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Items will be marked as " Gift " in low value. Items are shipped via China Post & Hong Kong Post & Singapore Post Air Mail. Country Shipping Way Shipping Time Tracking Number United States EUB 7-12 Yes Other Country China/Hong Kong/Singapore Post Air Mail 15-35 No If you need tracking number. Please add 2.5usd Register Shipping fee. Warranty and Guarantee Good Good quality. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns. Contact Us We strive to provide you with the best service, We will reply your question within 24 hours. Our goal is customer satisfaction! Our Working-time From 8:30 AM to 21:30 PM. you can check our working time from the World-time table. Notice of Shipping: All the item Shipping to USA with tracking number and supply Combined shipping discounts!(eg: If you buy 10 Different types product, Only Charge Shipping fee 1.5usd one-time.) For Worldwide(Except USA): Supply 3 kinds Shipping way and Combined shipping discounts 1), Economy Int'l Shipping Free Shipping(without tracking number)(if the total price is over 20usd also can supply tracking number); 2), Standard Int'l Shipping: 3usd (with tracking Number) 3), Expedited Int'l Shipping: 25usd ( Shipped by DHL/EMS ect.) For example: If you buy some different products(Add to a Card), Only pay 25usd for one product, The other products you can choose free shipping, and then I will send them in one package by DHL/EMS. On Oct-07-13 at 06:51:59 PDT, seller added the following information: inkFrog Analytics
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