Write to a characteristic

- [Instructor] So, now that we've connected to a peripheral…and discovered it's services and drilled down…into its characteristics, now we're going to look at…writing a value to a characteristic on the peripheral.…There's different types of characteristics…you may need to write to for your given device.…Sometimes it's to store data.…Other times it's to enable something or disable something…or otherwise configure the device.…To write to a peripheral, we're going to send…a data instance that represents whatever data…we're trying to store on the peripheral.…

That could be bytes or string.…It depends on the device and the characteristic in question.…Also, when you write data to a peripheral,…there's two options.…You can write with or without a response.…You have to check the properties for which one they support,…and use the appropriate parameter in the call.…We'll go over both cases.…So, in our code, we've discovered our service,…and then when we found the light detection sensor,…we discovered the characteristics.…