浮点数在esp32s3中就是有问题，浮点数的精度会出现严重不满足，基本只有前几位有效数字是准确的，慎用啊，坑

when I test modbus rtu slave eample in esp32s3, I found the float have stronge problem. I set the holding_reg_params.holding_data0 = 1000.213 in code, it is a float nubmer, then I read this number use modbus poll by computer but I get the nubmer is 1003.36. and I test a group of numbers, find that t...

官方例程 modbus slave rtu， 浮点数精度不对，对保持寄存器设置一个浮点数，读取到的浮点数结果精度只能到小数点后两位，根本无法使用，用的是idf 5.1.2版本，开发环境是vscode。