Currency
Toggle Nav
Tech blogs
-
November 01, 20171.Anti-electromagnetic interference issue should be more careful with the following systems 1）The system that the microcontroller clock frequency is particularly high and the bus cycle is particularly fast. 2）The system contains high-power and high current drive circuit, such as the relay with a spark, high current switch and so on. 3）The system with a weak analog signal circuit and high-precision A / D converter circuit. 2. Measures to improve the anti-electromagnetic interference of system 1）Choose the low-frequency micro-controllers. The use of low external clock frequency micro-controllers can effectively reduce the noise and improve the system's anti-jamming capability. The square wave and sine wave at the same frequency, the
-
September 28, 20171. The overlap of the welding plates. a. The overlap of welding plates means the holes are overlapped, when multiple drilling happens to one position, it would result in the damage of hole. b. Overlap of two holes in a multi-layer board will cause it scrapped. 2. The abuse of graphics layer. a. Doing some useless connection in the graphics layer is easily misunderstood, for example, a design for 4 layer PCB uses the circuit of 5 layer PCB or even above. b. In violation of conventional design, such as, the side of electronic parts is designed at the Bottom layer, and the welding side is designed at the Top layer, these all will cause troubles. 3. The characters are in a mess.
-
September 26, 2017The basic principle for the whole process of PCB design is: make the whole design beautiful as much as possible on the basis of following the requirements of product electrical and mechanical structure, keep the layout of electronic parts uniform and orderly in the printed circuit board. Here are the items and tips you should check:
- PCB size must be consistent with the size of processing drawings and follow the PCB manufacturing requirements.
- Check if the electronic components are conflicting in the two-dimensional and three-dimensional spaces.
- Is the distribution of electronic components in a well-organized, neat manner?
- Is it easy to replace the components that are frequently replaced? Is the plug-in
-
August 17, 2017Panelizing is common used in the PCB board’s production for it can get more value in a low cost. For some customers, the size of single boards can’t properly used on their project so they need a bigger size. That’s the main reason for customer choose panelizing service, here is an introduction of panelizing service of Elecrow. We have two ways of panelizing, one is V-cut and the other is snap off holes. For V-cut, the minimum size of board is 8*8cm. V-cut is a straight and uninterrupted line, the mini spacing between 2 V-cut line is 2mm, and different thickness has different request. For 1.6mm thickness boards, V-cut line must has 1mm spacing with the edge of boards; for 1.0mm thickness should be 0.7mm. Customer can add the V-cut line in the GKO layer or the silkscreen
-
July 04, 2017Congratulations! We have three new arrivals, they are Solderless Protoboard for Raspberry Pi, Elecrow 11.6 Inch 1920x1080 HDMI 1080P LED Display for Raspberry Pi and SIM5360E 3G Shield. Firstly, the solderless protoboard for Raspberry Pi has a printed circuit board and a single 2*20 GPIO header for raspberry pi toyou’re your Perma-Proto on top of your Raspberry Pi. Almost every pin can be connected to the pin can also be pulled out(Except for #26).It’s very convenient to use this solderless protoboard .You just need to connect it to raspberry Pi, then you can do a variety of experiments on the protoboard.
-
June 28, 2017With the development of the smart phone, the hardware configuration of the phone is continual upgrading that the CPU upgraded from dual-core to ten-core and the RAM now has up to 8GB. The currently new generation of Raspberry Pi is 3B+, which equipped with 1.2GHz, quad-crow and 1GB RAM. In comparison, both based on Linux and adopted ARM architecture, but the configuration of Raspberry Pi 3 is significantly lower than the phone. Why the difference between both so great? Google recently announced a partnership with raspberry pi to launch Raspberry Pi 4. It seems that the configuration of Raspberry Pi 4 should have eight-core, with above 2GHz, with 4GB RAM supported DDR4L. Besides, the Raspberry Pi 2/3B supports the android
-
June 22, 2017Regular PCB boards produced by Elecrow are based on class 2 of IPC-600-H (Acceptability of PCB). Click here to check and download the industry standards IPC-600-H. Definition for Rush Service:
- The timestamp on your order of the 12h rush service must be before 2PM Beijing Time to qualify. An order placed at 2PM and later will be considered to the next business day. Similarly, the 24h rush service will be put off the next business day when the order is placed at 6PM or later. The time used is the timestamp on your order, which will be showed once your order is placed. Besides, the 12h rush service is not included stencil and ENIG technology. But the ENIG is available in the
-
June 14, 2017PCB Sculpture is quite popular items in circuit board art. Circuit board is not only an important basic of the online lives in the 21st century, but also a works of art. Similarly, PCB designer was a technician of the PCB layout as well as an artist. Maybe we could collect and re-use the obsolete and spare PCBs, to protect environment and change the waste into resource. You may have seen the artwork which made of the PCBs by Steven:
-
June 09, 2017The application prospect of pcb is very vast, you can applied it to the arduino/raspberry pi projects or assembled some chips into its surfaces etc. Here we share a project where I saw in the instructable.com that diy an arduino robot. It is a simple robot which is operated by an arduino and what it does is that it just roams around and avoids obstacles. 1. Materials Required
2. Wiring and Schematic
-
May 15, 2017Raspberry 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
