硬件组成：

1. IDT 15W  无线充电套件

2. AVR单片机控制LED显示屏，后续读取15W套件接收板I2C总线数据，并显示。

3. TI的电源管理芯片，负责锂电池充电，电池和无线电源供电的切换。

软件部分：

开发平台：ICCAVR  AVRSTUDIO

部分显示代码：

void initia_gram(unsigned char *ledgram)
{
 unsigned char i;
 
 for(i = 0;i < 64;i++)
   {
    *ledgram = 0xff;
    ledgram++;
   }
}

void refresh_timeonled(unsigned char *datedata,unsigned char *ledgram,const unsigned char *BufferPoint)
{
  const unsigned char *zikubuffertemp;
  unsigned char *ledgramtemp;
  unsigned char i,j;
 
  zikubuffertemp = BufferPoint;
  ledgramtemp = ledgram + 4;
  // 显示在第二行开始 +4
 
  datedata += 5;
  //指向小时  5   指向分钟 3
 
  for(i = 0;i < 4;i++)
    {
  zikubuffertemp += *datedata * 8;
  ledgramtemp += i;
 
  for(j = 0;j < 8;j++)
    {
     switch(i)
    {
     case 0:
       if(*datedata == 0)
      *(ledgramtemp + j * 4) = 0xFF;
    else
         *(ledgramtemp + j * 4) = (*zikubuffertemp >> 1) | 0x80;
          zikubuffertemp++;
     break;
     case 1:
       if(j == 1)
         *(ledgramtemp + j * 4) = *zikubuffertemp & 0xFE;
    else if(j == 5) 
      *(ledgramtemp + j * 4) = *zikubuffertemp & 0xFE;
    else
      *(ledgramtemp + j * 4) = *zikubuffertemp;
          zikubuffertemp++;
     break;
     case 2:
       if(j == 1)
         *(ledgramtemp + j * 4) = ((*zikubuffertemp >> 2) | 0xC0) & 0x7F;
    else if(j == 5)
      *(ledgramtemp + j * 4) = ((*zikubuffertemp >> 2) | 0xC0) & 0x7F;
    else
      *(ledgramtemp + j * 4) = (*zikubuffertemp >> 2) | 0xC0;
          zikubuffertemp++;
     break;
     case 3:
       *(ledgramtemp + j * 4) = (*zikubuffertemp >> 1) | 0x80;
          zikubuffertemp++;
     break;
     default:
     break;
    }
    }
  --datedata;
  zikubuffertemp = BufferPoint;
     ledgramtemp = ledgram + 4;
 }
}

//------------------------------------------------------------------------------
//
//  将显示缓冲区内的数据发送到LED点阵上 点阵32 * 16
//  输入： 指向显示缓冲区的指针
//  输出： 无
void ShowPicONLED(unsigned char *BufferPoint,unsigned char x_wide,unsigned char y_high,unsigned char x_pos,unsigned char y_pos,unsigned char roll_switch)
{
   unsigned char i = 8;
   unsigned int j = 0;
   unsigned long cycleposition = 0x80000000;
   unsigned char *BufferPointbuffer;
   BufferPointbuffer  = BufferPoint;
  
   while(j < 16)
     {
   HC595_DataOut(0xFFFFFFFF,cycleposition);
      PORTA =  i;
      HC595_DataOutPut(BufferPoint,cycleposition);
      delayofftimeonus();
      i++;
      BufferPoint += 4;
   if(BufferPoint == BufferPointbuffer + 64)//64
     BufferPoint = BufferPointbuffer;
      if(i == 16)
      i = 0;//8
   j++;
   if(j == 16)
     {
   HC595_DataOut(0xFFFFFFFF,cycleposition);
      //cycleposition >>= 1;
   //if(cycleposition == 0)
   //  cycleposition = 0x80000000;
   //j = 0;
  }
  }
}

//
//  输出32位的数据到4片74HC595上
//  输入：要输出的32位数据
//  输出：无
void HC595_DataOutPut(unsigned char *GRAMPoint,unsigned long Position)
{
  unsigned long cycle = Position;
  unsigned long databuffer = 0;
  unsigned char i = 0,j = 0;
 
  databuffer |= (unsigned long)*GRAMPoint;
  GRAMPoint++;
  databuffer <<= 8;
  databuffer |= (unsigned long)*GRAMPoint;
  GRAMPoint++;
  databuffer <<= 8;
  databuffer |= (unsigned long)*GRAMPoint;
  GRAMPoint++;
  databuffer <<= 8;
  databuffer |= (unsigned long)*GRAMPoint;
 
  LED_MRH;
  LED_OEH;
  LED_STCPL;
  LED_SHCPL;
  for(i = 1;i <= 32;i++)
    {
  if(cycle & databuffer)
    LED_MOSIH;
  else
    LED_MOSIL;
  LED_SHCPH;
  cycle >>= 1;
  if(cycle == 0)
    cycle = 0x80000000;
  LED_SHCPL;
 }
  LED_STCPH;
  LED_OEL;
  LED_STCPL;
  LED_SHCPL;
}