This open source project is an automatic KH test device (the automatic control KH code is not tested, use it with caution)
The principle of this equipment is the hydrochloric acid titration method. Due to the selected peristaltic pump flow rate, dripper, reaction chamber volume and other reasons, the test accuracy is 0.1dkh, which basically meets the daily monitoring needs of sea tanks.
The hydrochloric acid used for detection was 0.1N (0.1mol/L) standard solution. After testing, the detected wastewater can be directly discharged into the tank.
This project follows the "GNU General Public License V3.0", you can carry out any secondary development and modification of this project, but DO NOT USE IT for commercial projects, and some functions have patents.
Instructions in English translated by Google
about the motor hat, maybe you can use the ADafruit motor hat,if you can change the code(about Raspi GPIO number)
rasberry pi img file :https://www.dropbox.com/s/ij3ptd888jnfukf/KHTester.rar?dl=0
此开源项目目的在于造福广大鱼友，自动化KH测试设备（自动控制KH代码没有测试，谨慎使用）
本设备原理为盐酸滴定法。因为选择的蠕动泵流量、滴头、反应仓容积等原因，测试精度为0.1dkh，基本满足海缸的日常监测需求。
用于检测的盐酸为0.1N（0.1mol/L）标准溶液。经过测试，检测后的废水可以直接排入缸内。
本项目的物料成本在1500元人民币左右（不计入3D打印外壳），主要成本在树莓派。
本项目遵循《GNU通用公共许可证V3.0》，您可以对本项目进行任意二次开发，修改，但不得用于商业项目，部分功能已有专利。
IMG文件：链接：https://pan.baidu.com/s/1iEEIiVbKctjeFx8JXDhr9g 提取码：hmdo