适当调整电路还可以降到2V左右正常工作

jjnana

相同显示面积的点阵型LCD显示灵活，3.3V和5V的遍地都是，适当调整电路还可以降到2V左右正常工作。但字符型的就不如人意，仅使用最多的1602，5V的遍地都是，10元以下也能轻易弄到，最便宜的5元吧——无背光。但3.3V的就不宜搞到便宜的，掏包上最便宜的也得11元左右。经过仔细研判他们所采用的驱动芯片，也有钱急之下想出了一个妙招
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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