ESP8266 последовательный Wi-Fi модуль 8266 развития доска 8266 SDK развития

Sales Policy 1. Your bid is a contract – Place an auction only if you are seriously considering buying the item. If you are the highest bidder, you will need to purchase a legal bid to purchase the item. If the payment is not received within 7 days, the item may be offered to the last bidder or put up for sale at the sole discretion of the seller. 2. The product at fixed price, please pay as soon as possible after the purchase. Please confirm the quantity you need, if the quantity is insufficient, please contact the seller for confirmation. Please do not buy products repeatedly, but not to pay. 3. Please confirm that you really need the product and the model. If you buy the wrong product, please contact the seller to cancel the order. Shipping Detail Economy: 15-50 days Standard: 10-35 days Accelerated: 4-7 days 1. Item will be shipped within 3 working days after receiving full payment. You should receive the item within 2-4 weeks. Send us an e-mail if you do not receive the items after 21 hours of work after full payment. 2. If there is a holiday in China or a weather anomaly, the shipment will be delayed, rest assured that we will organize the expedition as quickly as possible, thank you for your understanding and your support. 3. We ship only to the approved address specified in the PayPal payment. Make sure the payment address in PayPal is correct. Any item not received due to an invalid address registered on PayPal is not part of our full refund or replacement policy. 4. Please provide your phone number, it will allow you to receive the goods faster, no phone number, we can not deliver the item to you. 5. For highly magnetic products, we can only through the EMS delivery, as the servomotor. 1. Please note that do not revise or open our product, if it has any questions, please contact us. If, without our authorization, we do not review or open our products, we will not accept the refund. 2. If your purchase does not suit you, we will be happy to exchange or refund the product within 14-30 days of your purchase. For any exchange or refund, we need the original receipt and the product must be in original condition, including box, packaging and all accessories. Please allow a maximum of 10 business days for return processing. 3. Shipping and handling charges are not refundable. You should pay for the shipping costs returned. Then we can fully refund you once the returned item has arrived at our warehouse. Comments and contact us 1. When you are satisfied with our products and services, leave us your comments. It’s very important, we need it. 2. In case of any problem, please contact us immediately by e-mail, we will answer you as soon as possible and to discuss with you the right solution. We do not accept without contacting us who leave neutral and negative feedback. 3. Simply contact us via the Ask the seller link on eBay