Today's smart products or all hardware designs must basically take into account the networking features of the product. The most direct and convenient networking method is wireless WiFi.
When designing, it basically takes into account the integrated application of wifi modularity. If you can fully consider the hardware compatible design, you can provide flexible options for the wifi application of the product. The hardware compatibility is a motherboard, which can be selected according to the different wifi performance. With a variety of wifi modules, which only need to debug the corresponding software driver can!
In the early stage, it was analyzed from the communication interface (USB, SDIO, PCIe) and the operating frequency function (single-band, dual-band, WiFi Bluetooth combo). Finally from the hardware compatibility summary. Because the mini PCIe interface itself is a standard communication port, this time it will not be re-analyzed (previously "Network Card WiFi Module Series 8: PCIe Interface Wireless Network Card WiFi Module" has been analyzed in detail);
Mainly from the 12.9*12.2mm, 27*18mm, 12*12mm, 15*13mm four kinds of packages to analyze the reference:
WiFi module hardware compatible package size one: 12.9*12.2mm
This is a classic USB interface WiFi module;
The antenna is dominated by the ANT foot extension;
The supply voltage is DC 3V3;
Single WiFi function single channel: RTL8188FTV, RTL8188ETV, RTL8188EUS, MT7601UN, AR9271, the package is LGA-6; main module models are: RL-UM12BS-8188FTV, RL-UM12BS-8188ETV, RL-UM12BS-8188EUS, WL-UM01C-7601 , UB11;
Single WiFi function dual channel: RTL8192EU, package is LGA-10; main module models are: RL-UM02B-8192EU-V1.0, F92EUUM23-W1;
Single-frequency single-channel Bluetooth WiFi combo: RTL8723BU/LGA-14/@BT4.0, RTL8723DU/LGA-20/@BT4.2; main module models are: RL-UM02WBS-8723BU, F23BUUM13-W2, BL-R8723BT1 RL-UM02WBS-8723DU, 6223E-UUD;
Single WiFi function 11ac standard dual-band: RTL8811CU;
Single-channel 11ac standard dual-band Bluetooth WiFi combo: RTL8821CU;
For details, please see the following list:
Next to discuss the WiFi module hardware compatible package size 2: 27*18mm
Barrier Terminal Block
Terminal blocks are used to facilitate the connection of wires. In fact, they are a piece of metal sheet sealed in insulating plastic. There are holes at both ends to insert wires and screws to fasten or loosen them. For example, two wires sometimes need to be connected and sometimes need to be disconnected. At this time, they can be connected with terminals and can be disconnected at any time without having to connect them It's very convenient and fast to weld or wind together. And it is suitable for a large number of wire interconnection. In the power industry, there are special terminal blocks, terminal boxes, all of which are terminal blocks, single-layer, double-layer, current, voltage, common, breakable, etc. A certain crimping area is to ensure reliable contact and enough current.
Barrier Terminal Block
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