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          EEPW首頁(yè) 
	 > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > 基于STM8T141設(shè)計(jì)的觸摸或接近檢測(cè)方案
          
    
          

          

          


	
	
	

          
	
          
		
          
			
          基于STM8T141設(shè)計(jì)的觸摸或接近檢測(cè)方案
          
						
          
				作者：
				時(shí)間：2010-05-11
				來(lái)源：網(wǎng)絡(luò)
				
				
				
				
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          圖4.表面電容傳感器等效電容電路

          圖5.手提應(yīng)用等效電路圖

          STM8T14X-EVAL 評(píng)估板

          The STM8T14X-EVAL is an evaluation kit which introduces developers to STMicroelectronics STM8T141 touch and proximity capacitive sensor. It contains an STM8T141 evaluation board, the MB858, plus a set of preconfigured plug-in modules which allow to evaluate STM8T141 device performances in either touch or proximity detection (depending on the module which has been plugged in).

          STM8T14X-EVAL 評(píng)估板主要特性:

          The evaluation kit features are the following:

          ■ Touch detection with on-board PCB sensing electrode and 1.5 mm dielectric panel

          ■ Easy dielectric adjustment by stacking acrylic panels

          ■ Proximity detection with on-board PCB sensing electrode or plug-in antenna

          ■ Standalone power configuration using an on-board battery

          ■ External power supply through USB interface

          ■ Electrode grounding or shielding configured by jumper

          The STM8T14X-EVAL kit includes:

          ● 1 STM8T141 evaluation board (MB858)

          ● 4 STM8T141 preconfigured plug-in modules (MB856)

          ● 1 antenna shielding cable

          ● 1 additional 3 mm acrylic panel


          圖6.STM8T14X-EVAL 評(píng)估板外形圖

          圖7. MB858評(píng)估板和插入STM8T141模塊

          圖8. STM8T141評(píng)估板(MB858)電路圖

          圖9. STM8T141模塊(MB858)電路圖
          本文引用地址：http://www.ex-cimer.com/article/151867.htm          
				
            
                
			
							
          
                
			            
          
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