Besides its superior processing capabilities, this tiny gizmo ships with two USB ports, and one of them makes this tiny ...
So, if the pin layouts on a tutorial don’t match the ones I’ve got on my ESP32, I’d look at what protocol the sensor uses, go ...
这篇文章面向的是已经会用Arduino做基础采集、但被精度问题困扰的开发者。我会从ADS1115的工作原理讲起，把接线、配置、代码、校准、滤波、踩坑经验全部串一遍。你不需要有模拟电路的深厚背景，只要会基本的Arduino编程和面包板接线，就能跟着做出一套真正能用的高精度采集方案。
ADS1115是一颗16位精度的I2C接口ADC芯片，四个单端输入通道或者两个差分通道，内置可编程增益放大器（PGA），支持从±6.144V到±0.256V共6档量程，内置基准电压源，不需要依赖VCC的稳定性。最关键的是，它通过I2C通信，只占两个引脚，Arduino、ESP32、STM32都能用，模块价格也就十几块钱。这篇文章就把我 ...
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