Package: haas-python-motorspeed
HaaS Python介绍HaaS Python是阿里云IoT团队最新研发的一套低代码编程框架，兼容MicroPython编程规范，依托HaaS平台软硬件积木提供AI、支付、蓝牙配网、云连接、UI等物联网场景常用的能力，从而解决了物联网应用开发难的问题。有了Python轻应用框架，物联网编程不再局限于专业软件开发人员，一般的技术员也可以快速实现复杂的物联网需求。
更多HaaS Python介绍和开发资料见HaaS Python官网,创意案例,硬件积木HaaS Python is a set of low-code programming frameworks newly developed by Alibaba Cloud IoT team. It is compatible with MicroPython programming specifications. It relies on the hardware and software building blocks of the HaaS platform to provide capabilities commonly used in IoT scenarios such as AI, payment, Bluetooth network configuration, cloud connection, and UI. Solve the difficult problem of IoT application development. With the Python light application framework, IoT programming is no longer limited to professional software developers, and general technicians can quickly implement complex IoT requirements.
For more HaaS Python introduction and development materials, seeHaaS Python official website,Creative Case,Hardware Building Blocks安装方法在HaaS Python官网下载开发板对应的固件，并完成固件烧录Download the firmware corresponding to the development board atHaaS Python websiteand complete the firmware burning在开发板上运行以下命令完成安装和使用,如果您在使用过程中遇到问题，欢迎在github上向我们提交issue，我们的工程师会及时解答Run the following commands on the development board to complete the installation and use. If you encounter problems during use, please submit an issue to us ongithub, Our engineers will answer in timeimport upip
upip.install("haas-python-motorspeed")
import haas-python-motorspeed马达测速传感器一、产品简介马达测速传感器与电机，码盘组成测速模块，有遮挡，输出高电平；无遮挡，输出低电平，有了高低电平，然后通过脉冲个数来确定电机的转数。马达测速传感器广泛用于电机转速检测，脉冲计数，位置限位。引脚定义VCC：3.3VGND：地OUT：输出信号,有遮挡，输出高电平；无遮挡，输出低电平二、技术参数工作电压：3.3V-5V驱动能力：驱动能力强，超过 15mA输出形式：数字开关量输出（0和1）工作温度：-20°C~85°C比较器：宽电压LM393电路板尺寸：2.3cm*2cm三、软件接口马达测速传感器 HaaS Python驱动：下载地址MOTORSPEED(gpioObj) - 创建马达测速传感器对象函数原型motorspeedObj = MOTORSPEED(gpioObj,func)参数说明参数类型必选参数？说明gpioObjGPIO是调用此函数前需确保gpioObj对象已经处于open状态func回调函数否默认无回调函数，如果需要使用中断回调处理，则需要传入该参数返回值MOTORSPEED对象成功，返回MOTORSPEED对象；MOTORSPEED对象创建失败，抛出Exception示例代码-无回调函数importmotorspeedfromdriverimportGPIOprint("Testing motorspeed detector ...")gpioDev=GPIO()gpioDev.open("motorspeed")motorspeedDev=motorspeed.MOTORSPEED(gpioDev)输出Testingmotorspeeddetector...示例代码-有回调函数importmotorspeedfromdriverimportGPIOspeed_cnts=0defspeed_handler():globalspeed_cntsspeed_cnts+=1print('cnts:%d'%speed_cnts)print("Testing motorspeed detector ...")gpioDev=GPIO()gpioDev.open("motorspeed")motorspeedDev=motorspeed.MOTORSPEED(gpioDev,speed_handler)输出Testingmotorspeeddetector...cnts:0cnts:1cnts:2cnts:3cnts:4objectDetection() - 检查马达测速传感器的状态函数功能：检查马达测速传感器的状态函数原型：MOTORSPEED.objectDetection()参数说明：无返回值：成功返回MOTORSPEED检测状态，0 - 无障碍物 1 - 有障碍物；失败抛出Exception示例：importmotorspeedfromdriverimportGPIOprint("Testing motorspeed detector ...")gpioDev=GPIO()gpioDev.open("motorspeed")motorspeedDev=motorspeed.MOTORSPEED(gpioDev)print(motorspeedDev.objectDetection())输出Testingmotorspeeddetector...0四、接口案例此使用实例在board.json中定义了名为MOTORSPEED的GPIO类型的对象。在Python脚本中获取传感器的输出状态并打印在日志中。案例代码{"name":"board-name","version":"1.0.0","io":{"motorspeed":{"type":"GPIO","port":2,"dir":"irq","pull":"pullup","intMode":"falling"}},}importmotorspeedfromdriverimportGPIOimportutimespeed_cnts=0defspeed_handler(data):globalspeed_cntsspeed_cnts+=1print('cnts:%d'%speed_cnts)print("Testing motorspeed detector ...")gpioDev=GPIO()gpioDev.open("motorspeed")motorspeedDev=motorspeed.MOTORSPEED(gpioDev,speed_handler)while1:print(motorspeedDev.objectDetection())utime.sleep(1)输出Testing motorspeed detector ...
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