——来自迪文开发者论坛
本期为大家推送迪文开发者论坛获奖开源案例——多功能称重器。工程师采用4英寸COF，通过T5L OS核与HX711模块及5kg压力传感器套装进行数据交互，用户可轻松查看重量、单价、总价、去皮等计价显示功能，以及计数、重量变化曲线跟踪和称重器精准度矫正等功能，轻松切换不同应用场景，享受便捷高效称重体验。
【演示视频】
完整开发资料含迪文屏DGUS工程资料与C51代码，获取方式：
1. 前往迪文开发者论坛获取：/index.html/forum.php?mod=viewthread&tid=10017&extra=page%3D1
2. 微信公众号中回复“多功能称重器”获取。
【UI开发示例】
【C51工程设计】
称重器实现计价功能的部分参考代码如下：
//计价页面===================
#define VALUATION_UNIT_PRICE_ADDR 0x1010
#define VALUATION_GRAM_ADDR 0x1000
#define VALUATION_TOTAL_PRICES_ADDR 0x1020
uint32_t valuation_decorticate = 0; //计价去皮重量
uint32_t valuation_unit_price = 0; //单价
//单价刷新
void page_valuation_unit_price_refresh()
{
uint8_t test_display[10] = {0};
if(valuation_unit_price < 1000)
{
test_display[0] = valuation_unit_price / 100 % 10 + 0x30;
test_display[1] = '.';
test_display[2] = valuation_unit_price / 10 % 10 + 0x30;
test_display[3] = valuation_unit_price / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_UNIT_PRICE_ADDR, test_display, 4);
}
else if(valuation_unit_price < 10000)
{
test_display[0] = valuation_unit_price / 1000 % 10 + 0x30;
test_display[1] = valuation_unit_price / 100 % 10 + 0x30;
test_display[2] = '.';
test_display[3] = valuation_unit_price / 10 % 10 + 0x30;
test_display[4] = valuation_unit_price / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_UNIT_PRICE_ADDR, test_display, 4);
}
else if(valuation_unit_price < 100000)
{
test_display[0] = valuation_unit_price / 10000 % 10 + 0x30;
test_display[1] = valuation_unit_price / 1000 % 10 + 0x30;
test_display[2] = valuation_unit_price / 100 % 10 + 0x30;
test_display[3] = '.';
test_display[4] = valuation_unit_price / 10 % 10 + 0x30;
test_display[5] = valuation_unit_price / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_UNIT_PRICE_ADDR, test_display, 4);
}
else if(valuation_unit_price < 1000000)
{
test_display[0] = valuation_unit_price / 100000 % 10 + 0x30;
test_display[1] = valuation_unit_price / 10000 % 10 + 0x30;
test_display[2] = valuation_unit_price / 1000 % 10 + 0x30;
test_display[3] = valuation_unit_price / 100 % 10 + 0x30;
test_display[4] = '.';
test_display[5] = valuation_unit_price / 10 % 10 + 0x30;
test_display[6] = valuation_unit_price / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_UNIT_PRICE_ADDR, test_display, 4);
}
}
//重量刷新
void page_valuation_weight_refresh()
{
uint8_t test_display[10] = {0x30};
uint32_t gram_display = 0;
if(gram_value >= valuation_decorticate)
{
gram_display = gram_value - valuation_decorticate;
if(gram_display < 10)
{
test_display[0] = gram_display / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
else if(gram_display < 100)
{
test_display[0] = gram_display / 10 % 10 + 0x30;
test_display[1] = gram_display / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
else if(gram_display < 1000)
{
test_display[0] = gram_display / 100 % 10 + 0x30;
test_display[1] = gram_display / 10 % 10 + 0x30;
test_display[2] = gram_display / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
else if(gram_display < 10000)
{
test_display[0] = gram_display / 1000 % 10 + 0x30;
test_display[1] = gram_display / 100 % 10 + 0x30;
test_display[2] = gram_display / 10 % 10 + 0x30;
test_display[3] = gram_display / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
else if(gram_display < 100000)
{
test_display[0] = gram_display / 10000 % 10 + 0x30;
test_display[1] = gram_display / 1000 % 10 + 0x30;
test_display[2] = gram_display / 100 % 10 + 0x30;
test_display[3] = gram_display / 10 % 10 + 0x30;
test_display[4] = gram_display / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
}
else
{
dgus_show_text_value_set(VALUATION_GRAM_ADDR, test_display, 3);
}
}
//总价刷新
void page_valuation_price_refresh()
{
uint32_t price_value = 0;
uint8_t test_display[10] = {0x30, '.', 0x30, 0x30};
if(gram_value >= valuation_decorticate)
{
price_value = (gram_value - valuation_decorticate) * valuation_unit_price * 2 / 1000;
if(price_value < 1000)
{
test_display[0] = price_value / 100 % 10 + 0x30;
test_display[1] = '.';
test_display[2] = price_value / 10 % 10 + 0x30;
test_display[3] = price_value / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_TOTAL_PRICES_ADDR, test_display, 4);
}
else if(price_value < 10000)
{
test_display[0] = price_value / 1000 % 10 + 0x30;
test_display[1] = price_value / 100 % 10 + 0x30;
test_display[2] = '.';
test_display[3] = price_value / 10 % 10 + 0x30;
test_display[4] = price_value / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_TOTAL_PRICES_ADDR, test_display, 4);
}
else if(price_value < 100000)
{
test_display[0] = price_value / 10000 % 10 + 0x30;
test_display[1] = price_value / 1000 % 10 + 0x30;
test_display[2] = price_value / 100 % 10 + 0x30;
test_display[3] = '.';
test_display[4] = price_value / 10 % 10 + 0x30;
test_display[5] = price_value / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_TOTAL_PRICES_ADDR, test_display, 4);
}
else if(price_value < 1000000)
{
test_display[0] = price_value / 100000 % 10 + 0x30;
test_display[1] = price_value / 10000 % 10 + 0x30;
test_display[2] = price_value / 1000 % 10 + 0x30;
test_display[3] = price_value / 100 % 10 + 0x30;
test_display[4] = '.';
test_display[5] = price_value / 10 % 10 + 0x30;
test_display[6] = price_value / 1 % 10 + 0x30;
dgus_show_text_value_set(VALUATION_TOTAL_PRICES_ADDR, test_display, 4);
}
}
else
{
dgus_show_text_value_set(VALUATION_TOTAL_PRICES_ADDR, test_display, 4);
}
}
void page_valuation_decorticate()
{
valuation_decorticate = gram_value;
page_valuation_weight_refresh();
}
void page_valuation_1()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 1;
page_valuation_unit_price_refresh();
}
}
void page_valuation_2()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 2;
page_valuation_unit_price_refresh();
}
}
void page_valuation_3()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 3;
page_valuation_unit_price_refresh();
}
}
void page_valuation_4()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 4;
page_valuation_unit_price_refresh();
}
}
void page_valuation_5()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 5;
page_valuation_unit_price_refresh();
}
}
void page_valuation_6()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 6;
page_valuation_unit_price_refresh();
}
}
void page_valuation_7()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 7;
page_valuation_unit_price_refresh();
}
}
void page_valuation_8()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 8;
page_valuation_unit_price_refresh();
}
}
void page_valuation_9()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 9;
page_valuation_unit_price_refresh();
}
}
void page_valuation_0()
{
if(valuation_unit_price < 100000)
{
valuation_unit_price = valuation_unit_price * 10 + 0;
page_valuation_unit_price_refresh();
}
}
void page_valuation_back()
{
valuation_unit_price = valuation_unit_price / 10;
page_valuation_unit_price_refresh();
}
void page_valuation_clear()
{
valuation_unit_price = 0;
page_valuation_unit_price_refresh();
}
