That’s good to know it’s feasible. Is there a way to do in Pythonista? Or is it going to need Objc? Within a few inches is fine for accuracy.

Hey guys,
I’m not sure where to start with this, but here is the idea:
I want to use the microphone and speakers on the iPhone to measure distance. The speakers send out a pulse, the microphone pics up the pulse, and tells you the output in feet or inches or something.

The math is the easy part I think. What I can’t seem to find is where to start. Is there an API for the microphone and speakers? Any help is appreciated, thanks!
SM

I think it does. I just can't get the module to work

Thanks Jon B. I appreciate your answers. I found something called nanpy on github. I can't seem to load the module on pythonista on my iPhone. But could that work for loading programming arduino sketches direct from my iPhone?

Thanks for the link. I was thinking since I can send commands through pythonista via Bluetooth, why not the actual arduino sketch?

Can anyone help? Even a starting point would be great.

This is the entire code. Thanks for the help.

import cb
import ui

class MyCentralManagerDelegateView (ui.View):
    def __init__(self):
        self.peripheral = None
        self.charactetistic= None
        self.b=ui.Button(title='button')
        self.add_subview(self.b)
        self.b.action=self.a
        self.frame=(0,0,320,570)
    def did_discover_peripheral(self, p):
        if p.name == 'Bluno' and not self.peripheral:
            print ('Discovered ')+ p.name
            self.peripheral = p
            cb.connect_peripheral(self.peripheral)

    def did_connect_peripheral(self, p):
        print ('Connected Peripheral ') + p.name
        print ('Looking for Service FFE0')
        p.discover_services()

    def did_discover_services(self, p, error):
        for s in p.services:
            if s.uuid == 'DFB0':
                print ('Found Service ') + s.uuid
                print ('Looking for Characteristic FFE1')
                p.discover_characteristics(s)

    def did_discover_characteristics(self, s, error):
        for c in s.characteristics:
            if c.uuid == 'DFB1':
                print ('Found Characteristic') + c.uuid
                self.characteristic=c
                print ('Writing H')
            
    def a(self,sender):
        c=self.characteristic
        self.peripheral.write_characteristic_value(c, 'H', False)

    def close(self):
        cb.reset()

v=MyCentralManagerDelegateView()
cb.set_central_delegate( v)
print ('Looking for HM-10-BLE module')
cb.scan_for_peripherals()
v.present('sheet')```

Hey guys,
New question, is there a way to write an arduino sketch, and then upload an arduino sketch with pythonista serial? Or do I need to write the code in pythonista, and flash the arduino firmware to be compatible with pythonista? Thanks in advance for the help.
Steve

Hmm...I checked and it does say that. What isn't working?

Hi, sorry about that. Here is a screen shot. Not a lot of time to post code with my kiddos running around so I grab a few minutes here and there when I can.

Print trace back line 38.

    def a(self,sender):
        c=self.characteristic
        ```
Error says,
Traceback (most recent call last):
  File "/private/var/mobile/Containers/Shared/AppGroup/DEE1AA35-7934-4C6D-85F7-C62F8C4760BD/Pythonista3/Documents/ui test.py", line 38, in a
    c=self.characteristic
AttributeError: 'MyCentralManagerDelegateView' object has no attribute 'characteristic'
Traceback (most recent call last):
  File "/private/var/mobile/Containers/Shared/AppGroup/DEE1AA35-7934-4C6D-85F7-C62F8C4760BD/Pythonista3/Documents/ui test.py", line 38, in a
    c=self.characteristic
AttributeError: 'MyCentralManagerDelegateView' object has no attribute 'characteristic'