Descrição
This is an expansion board suitable for a series of cars with Raspberry Pi 4B as the mainboard. The overall layout is reasonable and can be directly inserted with Raspberry Pi 4B. It can support the various modules required to build smart robot car, such as ultrasonic module, motor, servo, sensor, etc.
Funcions:
74 Series Level Isolation Chip, L298N high-power motor driver chip(4A, 46V input range).
2-ways DC-DC High performance power supply: SY8120ABC (2A output, 18V input range) LM2596s-adj (3A output, 40V input range).
4-ways LED: Red power indicator*1, Blue LED connect to IO*3.Reserve an ID_EEPROM placement location.8-ways servo interface: Motherboard providepower, can directly drive 4DOF robot arm and pan-tilt kit.5-ways Infrared sensor interface: can be realize line following, object tracking, following and so on.1-way Ultrasonic interface: can be realize ultrasonic ranging, obstacle avoidance, walking the maze and so on.Other GPIO: UART*1, IIC*1, LEDcorresponding pin*3.
Power supply interface: 6-14VDC plug (main power supply connector), 2PIN power supply terminal (for motor external power supply <40V).
Shipping and delivery Information
Shipping Policy
Shipping time：Within 3 days after you pay for the order.
Start Date - All Time
End Date - All Time
Order weight less than 1000g - You have to pay shipping fee, $15 by default （small package Air）.
Order weight more than 1000g and less than 2000g - You have to pay shipping fee, $25 by default.
Order weight more than 2001g and less than 3000g - You have to pay shipping fee, $35 by default .
Order weight more than 3001g and less than 4000g - You have to pay shipping fee, $45 by default .
Order weight more than 4001g and less than 5000g - You have to pay shipping fee, $55 by default.
Some of our products come with battery and motor. we will select suitable express to ship， such as： DHL, UPS, Fedex, or special line, depending on your country.
Distributors are not eligible for free shipping.
Shipping Method
|
Shipping Method |
Delivery Time(business day) |
Tracking No |
Weight Limit |
|
DHL |
5-7 |
YES |
No |
|
UPS |
5-7 |
YES |
No |
|
Fedex |
7-10 |
YES |
No |
|
Special line |
7-15 |
YES |
No |
|
Small Packets Air |
10-20 |
YES |
No |
After your package is sent out, you can see your tracking number on our website. We will also inform you via email about your tracking number and tracking link.
Customs, Duties and Taxes
Our term is EXW Shenzhen which doesn’t include custom fee. You should expect to pay any amount charged by the government in your respective country. This includes, and is not limited to, duties, taxes and any extra fees charged by the courier company.
About battery： Some countries can't ship batteries, we will send battery cases instead of batteries. You need to buy the battery like the link of this specification, 12V, more than 5A in your country.
Payment & Security
Payment
PayPal
The main Payment method is Paypal. If you have paypal, that is great. You can simply place order and check out with few steps. If you don't have Paypal account, you can register it and pay by Credit or Debit Card.
Pay with Paypal
Pay with Credit or Debit Card
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
RETURN POLICY
Cancellation
We accept order cancellation before the product is shipped or produced. If the order is cancelled you will get full refund. We cannot cancel the order if the product is already shipped out.
Returns (if applicable)
We accept return of products. Customers have the right to apply for a return within 30 days after delivery the product.
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. To complete your return, we require a receipt or proof of purchase. Please ask our customer service to make sure you send the package to the right address.
Notes
Custom-order or personalised items do not have a right to 30 days refund.
If the return is caused by the consumer, consumer should be responsible for the shipping fee. The specific fee should be based on the express company you choose.
If due to our reasons, the goods received are damaged or not correct, the consumer is not required to bear the shipping fee for this reason.
No restocking fee to be charged to the consumers for the return of a product.;
Refunds (if applicable)
Once your return is received and inspected, we will email you a notification of receipt. We will also notify you of the approval or rejection of your refund. If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted. Next contact your bank. There is often some processing time before a refund is posted. If you’ve done all of this and you still have not received your refund, please contact us at
service@xiaorgeek.net
Please contact our Customer service at service@xiaorgeek.net to get the return address.