raspberry-pi-zero

问题 I've written a Python3 script which runs on Raspberry Pi Zero W that collects data from an IMU sensor (MPU9250) and creates 3 different angle values; roll, pitch, yaw. Which looks like this: def main(): while True: dataAcc = mpu.readAccelerometerMaster() dataGyro = mpu.readGyroscopeMaster() dataMag = mpu.readMagnetometerMaster() [ax, ay, az] = [round(dataAcc[0], 5), round(dataAcc[1], 5), round(dataAcc[2], 5)] [gx, gy, gz] = [round(dataGyro[0], 5), round(dataGyro[1], 5), round(dataGyro[2], 5)]

问题 I am trying to start and stop the recording of camera attached to a Raspberry Pi Zero W (client) using MQTT. Below is the specific part of the code which I am trying to use to achieve this: continueRecording = 1 def shopRecording(): global shop_record_flag_start, camera, continueRecording print("Starting Recording") while 1: print(shop_record_flag_start) with picamera.PiCamera() as camera: camera.resolution = (640, 480) camera.framerate = 20 camera.start_recording("/home/pi/camera-recording

问题 I have a raspberry pizero W that is connected via GPIO pins to a flowmeter and USB to a barcode scanner. I have python script that uses a callback function to be alerted when the GPIO input is sensed. This python script needs to be continuously running on the pizero in order to recognize when the flowmeter is activated and process the input. The problem is that I also have a barcode scanner attached via USB to the pizero. I would like the pizero to also recognize when a barcode is scanned and