PCB board is also known as printed circuit-board, which plays an important role in the electronic parts. Thanks to its special advantages that combines density, high-reliability, assemble and maintenance, which makes it been widely applied in the electronic industry. What are you most concerned about the aspects of PCB fabrication? Is quality, price or service? I believe that the price is the primary concerned for most customers. Then do you know how to estimate the cost of PCB board?
The cost of the PCB board can be affected by many things including the material, technology, surface treatments and quality assurance test, etc. PCB can be divided into three classes from its material: fiberglass panels (FR-4),
Dear customers,
I'm pleased to announce that we're lowering the price on 5pcs 2 layer PCB.
The new price can be as low as $4.9 for 5 pieces nomal PCB within 10*10cm. Besides, the quality and after-sales will be as good as before.
This price adjustment program will be carried out on May 21th, 2017. Before this date, if you have already place orders then we will accord the original price to express the goods. Since the date of May 21th, 2017, when you place orders, we will be executed to express the goods according to the adjusted price.
We make no profit on this item. This is in a sense, one of the ELecrow Sponsorship Project. We hope this price decrease makes PCB manufacturing more accessible to global young
Raspberry Pi is also known as single-board computer, which is based on an ARM microcomputer motherboard and its size is similar to credit card, but it with all the basic functions of the computer. Since its advent, it has a lot of fans who is maker and computer enthusiasts. Although it looks small, its heart is very strong. If you want to learn more about raspberry pi functions and interface types etc, you can refer to the wiki.
There are a lot of the makers sharing their raspberry pi projects on the instructable. For most of the maker, the raspberry pi screen is they will buy the goods. It can be applied to various occasions to achieve the data presentation function. In addition to raspberry pi official screen, the following screens can also be applied to
ESP32 is a latest low-cost and low consumption wifi module, Bluetooth, double processing chip. It has power performance, RF performance, stability, versatility and reliability and suitable for a variety of applications and different power requirements. In addition, it was designed for mobile devices, wearable electronic products and internet of things applications. The module is generally applied to wifi audio solution, wifi mini camera, 3D games, mesh networking, intelligence home and mobile networking, etc.
You can buy ESP32 Module at the Elecrow online store and I believe it will give you a good experience. Click to buy
https://www.elecrow.com/esp-wroom-32-esp32-wifi-bt-ble-mcu-module.html
The image is mainly about the difference between the work principle of WS2812 and WS2813 LED strip. The most obvious difference is: when the led one of the WS2812 was broken, it will affect the other led working, but the WS2813 will not appear above situation.
If you don’t know the WS2812 or WS2813, please allow me to introduce them to you.
Generally speaking, WS2812 has two versions: WS2812 and WS2812B. WS2812B is an upgraded version of WS2812. They are an integrating control circuit and the intelligent external control LED source of the light-emitting circuit, which looks similar to the 5050LED. It internal included intelligent digital port data latch and signal reshaping amplification drive circuit. Also include a precision internal
Finger Spinner is known as Hand Spinner，which working principle is similar to the old version that adopts the symmetrical bearing construction. It’s a funny toy that can spin in the finger without other component in some time. From 2016, Finger Spinner began popular in NA. At the same time, it had got highly attention in the NS Moments and its click rate was over one hundred million in the youtube.
According the psychiatrist’s survey, Finger Spinner not only help people who have fidgeting issues but also play an important part in the way that cultivate the attention of ADHD. Besides, it also had collection value according their material and shape or spin effects.
Next, we will introduce the most popular Hand-made Finger Spinner.
I'm excited to announce that we're going to move to a more beautiful and bigger office in the weekend. We will be fully engaged to deal with packaging, cleaning, and loading. So orders won't be processed in the following three days. We apologize for any inconvenience we may cause.
Some of our customers visited Elecrow, it's a little bit crowded. And the workplace are piled with goods and cargo. With the increase of our business and the members, we need to find a bigger workplace. And the new office is 1300㎡, it's twice bigger than the old one. And there are extra rooms for the employees to exercise and have fun.
The new address: Elecrow, F-building 8 floor, Fusen industry park, Hangcheng Road, Bao'an District,
Elecrow Sponsorship Project encourage makers to fulfill their ideas, and we can help to carry out the project effectively. As our slogan said, Elecrow on-line Store, Make Your Making Easier.
We provide free items for makers, electronic engineers and hobbyists to process non-profit activity . You buy at our store firstly, and then you record the project in the blog or video, send us the link of the content, we will check and refund.
Sharing bicycle went viral in China’s top cities, like Beijing, Shanghai, Shenzhen and Guangzhou. The idea of sharing bicycle is really awesome. It can brings lot of convenience to the local resident and improve the traffic effectively. And at the same time, it encourage a healthier way of travel, instead of going out by car or by bus, you can exercise by riding the sharing bicycle. And the price of renting is very low, the expensive cost is 0.14$ per half hour.
The two biggest company of sharing bicycle is OfO and Mobike. Both of the bicycle are put into mass production to seize the market share.
STEM is a curriculum based on the idea of educating students in four specific disciplines — science, technology, engineering and mathematics — in an interdisciplinary and applied approach.
"The future of the economy is in STEM." And it's is so important for our children, our region and our country, we need to encourage the students currently in our educational systems, as well as future generations of students, to understand and embrace the technology that affects them every day of their lives.
And in this article, I will introduce you the top 5 most funded STEM kits on Kickstarter.
Back to School with STEM-Limited-Time Event(Aug 6-Sep 5)
The image is mainly about the difference between the work principle of WS2812 and WS2813 LED strip. The most obvious difference is: when the led one of the WS2812 was broken, it will affect the other led working, but the WS2813 will not appear above situation.
If you don’t know the WS2812 or WS2813, please allow me to introduce them to you.
Generally speaking, WS2812 has two versions: WS2812 and WS2812B. WS2812B is an upgraded version of WS2812. They are an integrating control circuit and the intelligent external control LED source of the light-emitting circuit, which looks similar to the 5050LED. It internal included intelligent digital port data latch and signal reshaping amplification drive circuit. Also include a precision internal
Sharing bicycle went viral in China’s top cities, like Beijing, Shanghai, Shenzhen and Guangzhou. The idea of sharing bicycle is really awesome. It can brings lot of convenience to the local resident and improve the traffic effectively. And at the same time, it encourage a healthier way of travel, instead of going out by car or by bus, you can exercise by riding the sharing bicycle. And the price of renting is very low, the expensive cost is 0.14$ per half hour.
