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error writing value

See original GitHub issue

I am trying to write value so that I could turn on my led using HM-10 module.

I did the following steps: import { stringToBytes } from 'convert-string'; const data = stringToBytes('on');

writeValue(){
  BleManager.write('831827FC-8553-9E32-9DB0-BCCE941AC99F', 'FFE1', data)
  .then(() => {
    // Success code
    console.log('Write: ' + data);
  })
  .catch((error) => {
    // Failure code
    console.log(error);
  });
}

When I call this method, I get an error saying JSON value'(111,110)' of type NSMutableArray cannot be converted to NSString

What I am trying to do is pass on as a data to the ble module. Could anyone help?

Issue Analytics

State:
Created 5 years ago
Comments:9 (2 by maintainers)

Top GitHub Comments

1reaction

marcosinigagliacommented, Jan 25, 2019

Hi @kirhim , please check the documentation, you are missing a parameter.

0reactions

ankushdec1993commented, Feb 25, 2020

Hi Marco,

Can you send me the format of data that i should be sending like an example(not the complete code only the data that we send)?

On Tue, Feb 25, 2020 at 4:53 PM Ankush Shetty ankush@codewave.com wrote:

But its still not working

On Tue, Feb 25, 2020 at 4:50 PM Ankush Shetty ankush@codewave.com wrote:

Im sending the data like that shred in the image below

On Tue, Feb 25, 2020 at 4:48 PM Marco Sinigaglia < notifications@github.com> wrote:

https://github.com/innoveit/react-native-ble-manager#writeperipheralid-serviceuuid-characteristicuuid-data-maxbytesize

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