Open your cycling app (Zwift, Golden Cheetah). Go to the ANT+ pairing screen. Your Magene sensors should now appear.
import serial ser = serial.Serial('/dev/ttyACM0', 115200, timeout=1) # Send a reset message (0x4B) reset_msg = bytes([0xA4, 0x01, 0x4B, 0xEE]) # 0xEE = XOR checksum ser.write(reset_msg) response = ser.read(20) print(response.hex())