DIY Electronic Kit Airplane Flashing LED Simulate Aircraft Soldering Project Practice For STEM Student Learning
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Welcome to Roymall, your professional website for purchasing premium department store gifts. We highly value and appreciate your support, and we want to express our gratitude by adding an extra touch of excitement to your purchases. When you shop with us, you not only get to enjoy high-quality products that enhance your lifestyle, but you'll also receive an exclusive free gift with every order you place. Ready to explore our collection and find your perfect gifts? Browse our selection of premium department store items, place your order, and look forward to the excitement of your free gift arriving alongside your purchase.Shipping Policy
We will work hard to deliver items to you after receiving your orders and make sure they arrive safely. Delivery details will be provided in your confirmation email.In most cases, orders are processed within 2 days.Under special circumstances, it will be delayed as follows: When you place an order on Saturday, Sunday or public holidays, it will be delayed for 2 days..Normally, it needs 5-7 working days (Monday to Friday) without being affected by flight delay or other environmental factors..Because our shipping service is worldwide so the delivery times will depend on your location so it may need a few times and please wait patiently if you are in remote districts or countries.1. Return & Exchange Policy
We only accept items purchased from roymall.com. If you purchase from our local distributors or other retailers, you cannot return them on our side. Final sales items or free gifts are not acceptable for a return. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.After receiving return instructions from us, please package up your returned items and drop your package at the local post office or another courier.We will process your return or exchange item within 3-5 working days after we receive it. The refund will be processed and credited automatically to your original method of payment.No returns or exchanges can be accepted if the product was custom produced, including custom size, custom color, or custom printed.Need more help, please contact us. service@roymall.com or Whatsapp: +8619359849471
2.Refund Policy
You'll get a full refund or 100% store credit after we receive the returned package and check it. The refund will be processed and credited automatically to your original method of payment. Please note that shipping costs and any duties or fees are not refundable. The extra shipping costs are non-refundable once the package has been shipped. You are responsible for paying these fees and we’re unable to waive or refund them, even if the order is returned back to us.Once we received and confirmed your returned item, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.If you have any problems regarding the refund process, please contact us. service@roymall.com or Whatsapp: +8619359849471Application:1. Training welding skills2. Student school3. DIY production4. Project Design5. Electronic competition6. Gift giving7. Crafts collection8. Home decoration
9. Graduation design10. Holiday giftsInstallation Tips:1. User needs to prepare the solderingtool at first.2. Please be patient until the installation is complete.3. The package is DIY kit. It need finish install by user.4. The soldering iron can"t touch the components for a long time(1.0 second), otherwise it will damage the components.5. Pay attention to the positive and negative of the components.6. Strictly prohibit short circuit.7. Install complex components preferentially.8. Make sure all components are in right direction and right place.9. Please wear anti-static gloves or anti-static wristbands when installing electronic components.10. It is strongly recommended to read the installation manual before starting installation!!!
Component listing:1 x DIP-16 CD4017BE decimal counter at U2.
1 x DIP-8 NE555P timer at U1.
1 x DIP-16 IC Socket at U2.
1 x DIP-8 IC Socket at U1.
1 x 1Kohm Metal Film Resistor at R3.
1 x 5.1Kohm Metal Film Resistor at R2.
1 x 10Kohm Metal Film Resistor at R1.
3 x 3mm Red LED at LED1,LED4,LED7.
2 x 3mm Green LED at LED2,LED3.2 x 3mm Yellow LED at LED5,LED6.
1 x 0.01uF 103 Ceramic Capacitor at C2.
1 x 10uF Electrolytic Capacitor at C1.
1 x Power Switch at SW.
1 x CR1220 lithium battery at BT1,BT2.
1 x CR1220 lithium battery socket at BT1,BT2.
2 x PCB circuit board
