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General Interest You May Need 3D LightSquared DIY Kit 4x4x4 2*5*7MM LED Cube White LED Blue Ray $9.35 $13.35 DIY Kit NE555 Duty Cycle Frequency Adjustable Module Pulse Generator $2.14 PCK-4 Blue 1" 4-Bit Clock DIY Module DIY Kit 1-inch Digital Tube $9.98 NE555 Duty Cycle and Frequency Adjustable Module DIY Kit Square Wave $2.03 $2.9 DIY Kit Infrared Proximity Switch Control Switch $3.24 DIY Kit MAX7219 LED Dot Matrix Module Cascade for Arduino Raspberry pi $5.55 3D LightSquared DIY Kit 8x8x8 3mm LED Cube White LED Blue Ray $28.88 LM338K 3A Step Down Power Supply Module DIY Kit $11.49 $16.41 DIY Kit TDA2030A 2x18W 2.0 Double Track TDA2030A Amplifier $7.55 DIY Kit Simple Metal Detector Metal Locator 3V?5V DC Electronic Production $5.45 Voltmeter Suite DIY Kits Electronic Suite Electronic DIY SKU:2034 Description Description 1. Package Name: voltmeter Kit 2. Kit Model: VOT-8 3. Operating voltage: 3.5 ~ 25V 4. PCB size: 33 * 52mm 5. Measuring range: 0 ~ 30V 6. Measurement accuracy: 0.1V 7. The VOT-8 voltmeter package key switch control can work in two-wire or three-wire system state. (Shipping terminal configured as a two-wire) 8. The two-wire (by measuring voltage of the the VOT-8 power supply), the measurement range of 3.5 to 25. 9. The three-wire (by the external power supply voltage of 3.5 ~ 25V the VOT-8 power supply), the measurement range to 0 to 30V. Production steps 1. Welding resistance; 2. Welding capacitors, diodes, potentiometers; 3. Welding of the key switch,Attention to the direction 4. Welding IC socket 5. Installing digital tube 6. Installation of single-chip and copper pillar (Note microcontroller direction) 7. Produced clip cord 8. Calibration voltage table: Multimeter voltage profile, or a known voltage source voltage adjustment the VR1 potentiometer calibration. Features Suite Name:Voltmeter Suite Type:VOT-8 Operating Voltage:3.5~25V Measuring Range:0~30V Measuring Accuracy:0.1V The VOT-8 voltmeter suite is controlled by key-switch and can work well under the condition of two-wire or three-wire system. For the two-wire system, VOT-8 will be supplied with power by the measured voltage. And the measuring range is 3.5~25V. For the three-wire system, VOT-8 will be supplied with power by a set of voltage with the range of 3.5~25V. And the measuring range is 0~30V. Principle of Operating The measured voltage is inputted via J1 PIN3. And it's inputted to the SCM PIN23 after the pressure resistance through R1?VR1 and R2. The analog voltage will be transferred to digital signal through the A/D converter inside of the SCM. At last, the measured voltage will be displayed on the digital tube after scanning the digital tube. The system power is connected reversely through S1 polarity. And the IC of diode (from D1 to U2) outputs voltage 3.3 V. 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Principle of Circuits List of Components Maybe you still need other items to work with this item DIY Kit 24x16 Red Yellow Green Blue Audio Indicator FFT Voice Frequency $29.99 $42.84 DIY Kit 12x11 Red Blue Green Yellow Mixture Audio Indicator FFT Voice Frequency $14.21 3D LightSquared DIY Kit 4x4x4 2*5*7MM LED Cube White LED Red/Blue Ray $11.08 DIY Kit Dot Matrix 16x32 Red Green Dual-Color Dot Matrix Control Display Module $11.61 $16.58 DIY Kit Red Blue Dual-Color Detonation Flashing Light $2.09 $2.99 DIY Kit Red Green Dual-Color Heart-Shaped Module Birthday Gift $2.38 DIY Kit 60S Rotate Electronic Clock Module Kit Second Hand Plate $9.41 DIY Kit ECL-132 Supersized Blue Screen Display Remote Control Clock Kit $27.79 DIY Kit ICSK032A Mobile Phone Signal Flash Light Radiation Power $2.25 3D LightSquared DIY Kit 8x8x8 3mm LED Cube White LED Blue Red Green Yellow Ray $26.24 SHIPPING PAYMENT RETURNS FEEDBACK ABOUT US 1)All items will be shipped to your paypal address .Please update your latest address when you check out,and please make sure to provide us with correct,precise and detailed shipping address. 2)Most of the items will be shipped via Hongkong Airmail/Singapore Airmail .To US customers,we will send the package via E-packet . 3)All items will be shipped in 24 Hours (excluding Sat,Sun & Holiday) after payment received and cleared. For the long-time holiday, we'll post the info on our store and reply you automatically via emails. 4)Tax:We will do our best to help you to clear the goods,and the tax depends on each country custom. 5)If you don't receive items over 30 business days,please make sure to contact us before leaving any neutral or negative feedbacks.We'll try our best to help you solve the problem. 6)The product in our store is free shipping. But the shipping method is different based on your order.If your order is more than $40 ,we will send the items to you with tracking number for free.If your order is less than $40,the registered mail fee is on your side. We could also deliver your item via EMS,DHL or Fedex based on your requirement. We Only Accept Paypal on Ebay. For specific requirements, please feel free to contact us. 1)If for some reason you're not satisfied with our service or product quality, please contact us within 3 days after you get the package, you can return the products to us in original package and we will refund your money after we get the package!(Shipping cost is NOT refundable and you should responsible for the return shipping) 2)Although we test each item and they are packed professionally, few item(less than 0.1%) might be damaged during the shipping. You are welcome to contact us within 3 days after you receive your package about replacement. 3)Repair Some items might be broken caused by improper use, we are always happy to offer any helpful repair service. Of course, you can send the broken items back to us and we will help you resolve the situation and charge reasonable repair fees. Feedback is important to all of us participating on the eBay community. We are always working hard for maintain high standards of excellence and strive for 100% customer satisfaction. So your POSITIVE FEEDBACK is very important. Here is an illustration showing how to leave the positive feedback, please follow the following step. Thank you so much. And welcome back to our store again. Chip_Partner is a Well-Known Online Supplier specializes in all kinds of IC products and all Consumer Electronics, such as electronic devices and components, development modules, Power modules, consumptive materials and so on. Chip Partners are on Ebay for almost 10 years, and has owned thousands of registered customers from all over the world. We offer world wide free shipping and have already shipped to more than 150 countries including United Sates, United Kingdom, Canada, Australia, France, Germany, Russia, Italy, New Zealand, Spain, Brazil, Japan, Singapore, Korean, etc. We are more wiling to be your Long-Term Supplier in this filed, as we have these advantage of others: 1.Lowest Pirce, High Quality 2.Best Customer Service 3.Technical Support 4.Mass Quote Sevice 5.Extra Service if you need other items not listed in our shop On Mar-19-14 at 20:57:45 PDT, seller added the following information: On Nov-04-15 at 03:26:55 PST, seller added the following information:
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