Find Jobs
Hire Freelancers

Wifi control of 230VAC powerswitches

$250-750 USD

Suoritettu
Julkaistu lähes 6 vuotta sitten

$250-750 USD

Maksettu toimituksen yhteydessä
Hi' I am helping a hospital in the northern of Tanzania to control their limited resources of power from their hydro power plant. Actually I am renovating the entire hydro power plant control, which is why I need some software development assistance. From my Hydro controller, I send information to a Power Management Unit, which in turn can control up to 15 power outputs for electric water heaters mainly. Nomally I would then just place the heaters on a separate phase and add relays to turn on/off that phase to a particular house, but since they have only drawn 1-phase power line to most of the houses, this is not an option. Therefore I will have to place remote Wifi controlled relays on each house to switch on/off the heater only, and not all the other power to the house. I plan to use either: [login to view URL] or [login to view URL] at each house receiving a wifi signal from a central omni directional antenna. From the hydro power controller I get an RS232 serial single byte sent every 50 times a second, this is also transferred over a Wifi link from the hydro power plant, and received at the hospital. The single byte contains a value from 0 to 15 to indicate how many loads are allowed to be on. = = all off. 5= 1 to 5 on. 15= all on. The development task is to transform this received byte into a signal that the Wifi switches can understand. These switches are nomally controlled from an App on a smartphone, but in our application we should preferably disable this option, or only allow this from an app with a master password, so that individuals cannot override the control from the hydro power plant controller. I believe these Wifi Power relays utilise the ESP8266 microchips, and that a lot of support is available on the internet for programming these, so I hope the task of implementing this is fairly easy to overcome. Timeframe: approx. 1 month, which should be more than sufficient.
Projektin tunnus (ID): 16964903

Tietoa projektista

14 ehdotukset
Etäprojekti
Aktiivinen 6 vuotta sitten

Haluatko ansaita rahaa?

Freelancerin tarjouskilpailun edut

Aseta budjettisi ja aikataulu
Saa maksu työstäsi
Kuvaile ehdotustasi
Rekisteröinti ja töihin tarjoaminen on ilmaista
Myönnetty käyttäjälle:
Käyttäjän avatar
Hi, I'm very sure to accomplish your project on time and budget. I can guarantee to you no paymentent to me until the project is complete. I offer to you complet skype assistance for anything question you have and we will be probbing the project step by step. I have a lot of experience conding on arduino and developing electronic projects. I'm an electronic engineer with seven year of experience on Embedded systems, microcontrollers and circuit design. Can we talk more about this?
$400 USD 20 päivässä
5,0 (16 arvostelua)
5,1
5,1
14 freelancerit tarjoavat keskimäärin $684 USD tätä projektia
Käyttäjän avatar
Senior ENGINEER. have at least 40 years experience developing Hardware and Software Producing Analog/Digital Video board designs, layouts and modifications; Verifying designs and layouts; Preparing documentation for manufacturing; Develop Digital/Analogue electronic board architecture and design by developing product concept; Researching, analyzing, selecting, and applying design concepts, approaches, techniques, and criteria; adapting and modifying board design alternative architectures; developing and evaluating new analogue/digital architectures and algorithms; defining functionality and requirement specifications; Developing board layout including size, performance, power consumption, and cost;
$1 333 USD 10 päivässä
4,9 (40 arvostelua)
6,3
6,3
Käyttäjän avatar
Hi there, I have done same project on freelancer here , you will find it my reviews too . I have got the required module also.
$833 USD 10 päivässä
4,9 (14 arvostelua)
6,3
6,3
Käyttäjän avatar
Hi. I am a professional Electronics Design Engineer having expertise in developing Wifi control. I have read your project requirement and ready to provide you the solution for controlling your switching relays using Wifi technology. Contact me.
$500 USD 10 päivässä
4,6 (14 arvostelua)
4,9
4,9
Käyttäjän avatar
Dear Sir, I have experience in developing the application based on the ESP8266 module, I have I also worked on the Arduino, Raspberry pi, STM, NRF etc. My team member has experience in developing the APP ( IOS/Android) Let us Discuss this project Further
$777 USD 10 päivässä
5,0 (4 arvostelua)
4,5
4,5
Käyttäjän avatar
I had worked on various communication interface. It includes WiFi based interface also. You can see some of my similar projects on blogger site - Realm of Embedded Microcontroller.
$555 USD 20 päivässä
5,0 (1 arvostelu)
2,2
2,2
Käyttäjän avatar
I already have much experience with wireless control projects. Most are DC applications but the software would be about the same. Can do for Windows, Mac, or Linux in C++. Relevant Skills and Experience Wireless relay control of hydraulic valves over Wifi frequency radio with omni directional antenna on TCP/IP network. Developed software GUI, signal control software, and hardware integration.
$750 USD 20 päivässä
0,0 (0 arvostelua)
0,0
0,0
Käyttäjän avatar
A proposal has not yet been provided
$277 USD 5 päivässä
0,0 (0 arvostelua)
0,0
0,0
Käyttäjän avatar
Hi! this will be my first project on freelancer.com, because of it i wont ask for a payment and the beginning of the project, just at the end. I've been working with automation processes for about 4 years, and 7 years developing software and programming microcontrollers. I already have an Zonoff and its easy to complete reprogram. Send more info to begin.!
$422 USD 15 päivässä
0,0 (0 arvostelua)
0,0
0,0
Käyttäjän avatar
Hi, as automatic engineer with 15 years of experience, I can definitely help you with your project! looking forward to your reply king regards Michel Feria
$555 USD 30 päivässä
0,0 (0 arvostelua)
0,0
0,0
Käyttäjän avatar
I have 7years experience in electronic embedded hardware. I will successfully deliver the project within time
$555 USD 10 päivässä
0,0 (0 arvostelua)
0,0
0,0

Tietoja asiakkaasta

Maan DENMARK lippu
Odense N, Denmark
5,0
1
Maksutapa vahvistettu
Liittynyt toukok. 14, 2018

Asiakkaan vahvistus

Kiitos! Olemme lähettäneet sinulle sähköpostitse linkin, jolla voit lunastaa ilmaisen krediittisi.
Jotain meni pieleen lähetettäessä sähköpostiasi. Yritä uudelleen.
Rekisteröitynyttä käyttäjää Ilmoitettua työtä yhteensä
Freelancer ® is a registered Trademark of Freelancer Technology Pty Limited (ACN 142 189 759)
Copyright © 2024 Freelancer Technology Pty Limited (ACN 142 189 759)
Ladataan esikatselua
Lupa myönnetty Geolocation.
Kirjautumisistuntosi on vanhentunut ja sinut on kirjattu ulos. Kirjaudu uudelleen sisään.