Tsingtek lcd counting module displays is a different digit seven-segment liquid crystal display drive and decoder, or assembled together with the counter count display parts. 128x64 oled has a recording, processing, display digital functions. The main products on our market can be seen there by a CD4055 decoder driver drives the liquid crystal display unit display modules, as well as by the ICM72ll, ICM7231, ICM7232, CDl4543, UPDl45001, HD44100 and other 320x240 lcd display integrated circuits and corresponding supporting the liquid crystal display device assembled the 4, 6, 8, 10, 12, 16 counting module. In the selection of such a counting module must note the following: (1) clarify the function: Although called "counting module," but most of them can not be directly counted. Their input port is only some BCD code interface in the form, add some code BCD strobe terminal input interface in the form, there is a direct serial, parallel port interface in contact form, and so on, such as the need to calculate or record a string of numbers, you must also configure the circuit, of course, there will be a counter circuit with a good product on the module. (2) look for structure: a liquid crystal display device has a different mounting method and structure. This solid, in the selection should pay attention to its structural features, in general, most of this counting module from the zebra conductive rubber, plastic (or metal) press box and the PCB liquid crystal display device and an integrated circuit assembled together. Outer lead terminals have solder type, plug pin, pin board style several. (3) Note that the power supply: a piece of equipment you should use a unified power, a common liquid crystal display device counting module with a single and double power supply type, there are different specifications 5V and 9V.
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