Little Code Fixes for Arduino Amp/Watt Meter Project

I have a working unit that a freelancer built for me in Aruduino (got a .ino file) and I built with the components list that the freelancer sent and the PCB that he planned (sent it to Seeed to print).

It's about 90% tested but I have some issues that are code related that need to be fixed.

I have attached the job description of the job of building the whole unit (not this job) just so you get an idea of the device and it's functions (the job description is almost identical to the real device but not 100%, there are a few little updates that are not written there).

The things that need to be corrected:

1. Voltage Calibration - The device has a pot on the pcb to calibrate the voltage, at first I tested with an 11.5V input and the screen showed about 9V so I tried to calibrate towards 11.5V and the pot was maxed on 10V so the previous freelancer changed the sensitivity and now I tested on a 52V input and it showed 84V so I calibrated through the pot all the way down and it bottomed at 55V which is 3V off.

2. The device has 4 different views to the 1602 LCD, it can view either amps/volts and such and it can view speed data or both at the same time and more.

The device has a capacitor for when the power source is cut nor the device is turned off from it's button that it will remember the last viewed screen and a few numbers like max amps/watts and such and it doesn't remember the last viewed screen and always opens on the same one.

About if it remembers the recorded data such as max amps/watts etc, I haven't tested it all the way through so will update about that and will need to fix that too if it doesn't work.

3. The device has the option to receive current from the output side for when a charger is connected to the output or when an ebike controller with regenerative braking option is connected.

Whenever the device receives current from the output, the amps, watts etc will have the letter 'n' next to them ('n' for negative) to mention that the current/watts shown are coming from the input.

The problem is that it shows the 'n' all the time also when no current is being used and I think that the previous freelancer may have put that option for the 'n' on the output instead of the input or maybe some other problem.

Please only experienced programmers with enough reviews (high rank) and prefferebly one who has deep electronics knowledge.

The project will be set as 3 milestones for each of the problems.

The programmer needs to be responsive throughout the day, work on weekends and not tell me on a Thursday that he will get back to me on Monday.

This needs to be done in 2-4 days.

A freelancer that will reply with a copy paste message or a super short message or reply within two seconds of posting will be excluded immediatley.

Please read the whole thing including the attached file.

Evner: Arduino, Elektrisk Ingeniørarbejde, Elektronik, Microcontroller, PCB Layout

Se mere: voltage meter project, led meter project, large led meter project, led meter project circuit, leds meter project, code drupal google map integration trial project, pic16f877a voltage meter project, kwh meter project, j2me code real time mobile video streaming project, emi meter project circuit diagram, pic16f628 watt meter, electronic kwh meter project, arduino watt meter, arduino power meter project, built watt meter arduino, energy meter project code, arduino digital watt meter, arduino mains power watt meter, watt meter project

Om arbejdsgiveren:
( 3 bedømmelser ) Holon,

Projekt ID: #17617312

Tildelt til:


Hello. do you have previous code and circuit diagram? I have a experience for Arduino programming. I hope a cooperation. Regards.

$133 USD in 3 dage
(17 bedømmelser)

13 freelancere byder i gennemsnit $223 på dette job

$122 USD in 3 dage
(205 bedømmelser)

I can work if get the GPS device and the old device with the source code of Arduino. I have experience on building Arduino IoT or normal digital device. 15+ years of experience on Computer Language and Digital Devic Flere

$1250 USD in 30 dage
(8 bedømmelser)

Hello. My name is Vusi and I'm an Electronic Engineer, you can learn more about me from my website at [login to view URL] I can fix your code within 24 hours, then we can go over them for the next 2 days

$150 USD in 3 dage
(12 bedømmelser)

Hi. I am expert in electronics. Have read your job description and attached file. Can do this having excellent programming and simulation skills. Pls see my portfolio for implemented electronics projects also

$166 USD in 10 dage
(8 bedømmelser)

Hello my name is Maria, I would like to work in this project, I’m an engineer with plenty of experience working with Arduino, Electrical Engineering, Electronics, Microcontroller, PCB Layout, I have made many similar p Flere

$161 USD in 3 dage
(5 bedømmelser)

Hi, Here is my suggestion: 1. I'm not sure this was caused from Programming parts, so I need a complete schematics of your board. If the reading isn't correctly measure the voltage. It could be some hardware problem to Flere

$200 USD in 3 dage
(12 bedømmelser)

dear employer, I have a lot of experience with arduino and electronics so I can fix your problems. Unfortunately I am on holiday till friday so I can deliver the software only after 6 days. so if this is too late I Flere

$111 USD in 6 dage
(5 bedømmelser)

Dear Hiring Manager, I have worked with various Electrical & Electronic support companies as an Engineer which develop my skills in awarding with excellent, effective & efficient results as per my jobs responsibility. Flere

$43 USD in 3 dage
(3 bedømmelser)

Hello, I have 7 years of R&D experience as an electrical and electronics engineer. I have completed hundreds of arduino projects so far. I can definitely deliver what you need. for your first problem, the most probable Flere

$222 USD in 4 dage
(1 bedømmelse)

i have best coder for this project pls msg me High Quality + Fast Speed = Excellent Result + Business Success, this is my working style.I have gone through your Job post and I can understand your job requirement thor Flere

$78 USD in 3 dage
(1 bedømmelse)

I am an engineer of embedded systems and in electronics, most of my projects are based on arduino so I think I can do the job.

$111 USD in 4 dage
(0 bedømmelser)

Hi, Thanks for your job posting. I have reviewed the provided specifications and attached document. I ma ready to fix the issues related to your code. I am responsive throughout the day and can work on weekends a Flere

$155 USD in 3 dage
(0 bedømmelser)