Android App Debugging

Hello everyone,

I have an android App developed in android studio, which I bought from a freelancer, along with a microcontroller system. I take some temperature measurements from a sensor (DHT11) and I send them to the mobile, wirelessly through an NodeMCU ESP's wifi shield hot spot.

I try to run the app and this error occurs on an xperia z1 android version: 5.1.1:

"Unfortunatelly the GraphPlotterESP has stopped working"

This is the source code and the apk of the app: [url removed, login to view] ( I attach a second version of the apk)

I have an arduino connected to a NodeMCU esp with wifi shield and a DHT11 sensor of temperature connected on both, as seen on the screenshot attached.

I connect to the wireless network of the NodeMCU esp wifi shield and then i try to connect through te app but it hangs and the error appears.

The freelancers says it works 100%

1. Is the problem on the code of arduino and esp sending the data or the delays? ( I attach the codes loaded on them)

2. Is the problem on the app getting the data? Maybe the versions of android or the delays?

3. There is no problem on the system and I connected wrongly the wires?

I want someone to inspect the code and fix my problem.

I would be happy to work with you,

Thank you in advance

Skills: Android, Arduino, Java, Microcontroller

See more: thesis report proposal for use of opnet network modeller to investigate the stress on a network through the use of different app, i nedd an android app used to count and record the total number, social network app android, network monitoring control app android, create social network app android, create app android iphone social network, convert app android iphone, wifi app android, follow app android, best wifi app android, gardening app android, change iphone app android app, iphone app android conversion, convert iphone app android app, database app android, best navigation app android, convert iphone app android, porting iphone app android, port iphone app android, dialer app android, radio app android

About the Employer:
( 40 reviews ) Thessaloniki, Greece

Project ID: #14376033

17 freelancers are bidding on average $52 for this job


Hi, I have 5+ years of experience in app development. I have successfully launched 40+ apps on Google Play Store. I have working experience on both Eclipse and android studio. I am especially master in Java. In term More

$30 USD in 1 day
(110 Reviews)

Hello, client. My number one priority is customer service and satisfaction! I can develop iOS and Android apps, server backend api and admin panel in PHP,MySQL and Website for the app. I have developed man More

$25 USD in 1 day
(16 Reviews)

FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past p More

$25 USD in 1 day
(54 Reviews)
$100 USD in 1 day
(34 Reviews)

Hi. I have reviewed the code of arduino, esp and Android application. They looks fine and should works. I think that there is a problem with configuration. I think that I can solve your problem. Regards.

$25 USD in 1 day
(19 Reviews)

Hi, Dear Employer! How are you? I read your description carefully and understand your requirements fully. I am really interested in your project. I am 100% sure i can do this. Sure, I will support free bug fixin More

$25 USD in 1 day
(5 Reviews)

Hello Sir, Thank you for allowing us to place bid on your project. It seems that we are perfect fit for the project as we have expertise in working on android and iOS application projects. We are Yontech softwar More

$25 USD in 1 day
(10 Reviews)

Hi, my name is Woody and I would love to work with you on your project, feel free to call me in the [url removed, login to view] chat to talk with me about your requirements and ideas. - A little about myself: I'm a Systems En More

$30 USD in 1 day
(3 Reviews)

Hi There! As we go through your requirements, you are Looking for Mobile app development. Let me discuss with my team then we will give you perfect time and cost for entire work. We have good professional dev More

$90 USD in 1 day
(3 Reviews)

[url removed, login to view] (Valley of Solution): Who We Are: We're web developers and management team to facilitate you after working on many projects we are now focusing only to develop website of various kinds of different co More

$23 USD in 10 days
(2 Reviews)

Dear, sir. Nice to meet you. I am a mobile developer by profession and expert. I have developed many apps for 7+ years and uploaded it on app store and play store and so have the rich experience in this area. I hav More

$25 USD in 1 day
(1 Review)

HI I hope to make that for you I'm automation engineer. I can make it work but by Bluetooth module not wifi module and in this case the app will be free we will download it from the store thanks

$20 USD in 1 day
(2 Reviews)

A proposal has not yet been provided

$35 USD in 1 day
(1 Review)
$25 USD in 1 day
(1 Review)

Embedded/IOT/Arduino+Raspberry Pi are our core strength. We have a team who has got specialization into these areas and have been working since 4 years. Let me know if we can discus

$250 USD in 8 days
(0 Reviews)

I am an experienced mobile developer. I have 4 year of experience in mobile development. I have completed many project in my overall mobile development career. Project completed by me is of different kinds like groc More

$30 USD in 3 days
(0 Reviews)
$35 USD in 5 days
(0 Reviews)
$26 USD in 6 days
(0 Reviews)

Dear Client, We are Expert in Android Apps Development and standing here with 5* Ratings. -I am the Member of GDG(Google Developer Group,Ahmedabad) and have deployed more than 50+ App on the store. Location More

$14 USD in 1 day
(0 Reviews)

Hello, Thanks for reading my proposal. We are the team of 20 developers based in Rancho Palos Verdes California . We can take up this project and I think we are the perfect fit for this job. We have 6+ yrs com More

$111 USD in 1 day
(0 Reviews)