HVAC control Firmware development

€3000-5000 EUR

Anulowano

Opublikowano

ponad 4 lata temu

€3000-5000 EUR

Płatne przy odbiorze

The purpose of this document is to define the requirements for a new firmware development of a Control Interface for HVAC units. This interface acts as a MODBUS slave interface, at fixed speed (115.200bps) There are 4 modbus registers to identify the model, type, serial number and the modbus address. Modbus address can be modified for the master, but only applies after a Reset. Default address is 1. There is also a fixed broadcast address 255 for master commands, no answer is required. There are also 4 registers more: 3 for operation and 1 for status & alarm code: There are two PCB designs: one for BASIC or WATER HVAC unit and the other for ELECTRIC HVAC unit, so there are 3 different firmware: 1) BASIC HVAC UNIT: a. Switch ON AC supply when all is ok, switch off in case of alarm b. Fan speed control: low / fast / stop (2 digital lines). Very important: changes in speed must be synchronized with ZCD input signal c. ZCD signal control, corresponding to AC line frequency. Alarm if it’s out of normal range (50/60 Hz) d. 2 input digital signals & 1 output signal for users app. e. 1 PTC1000 temperature sensor, for user info f. Led Indicator Status/Alarm: fast blink during communication and slow blink for alarm codes. 2) WATER HVAC UNIT: The same than 1) but adding EV relay digital output signal 3) ELECTRIC HVAC UNIT: The same than 1) but adding Heat Control system: a. 3 output signals for control 3-stage heater. Heater cannot switch on if fan is stopped. Heater stage can be selected as function of fan motor speed and model/type, following the next table: Speed Max heater OPT 1000 9kW Max heater (Other) Stopped 0 (no heater) 0 (no heater) Low 2 3 High 3 3 b. Overheat sensor (NO) digital input. Generate alarm & increase fan speed every 2 minutes. After this, Heater must be stopped. When overheat signal disappears, heater must be restored to the programmed stage. • PLANNING & MILESTONES 2 hardware units supplied: BASIC/WATER CONTROL INTERFACE and ELECTRIC CONTROL INTERFACE, to be used as for debugging the new firmware design, with a programmer tool for ST8M family microcontrollers Proposal phases / milestones of firmware project: 1) “Hello World” STM8 and peripherals (UART) 2) SLAVE MODBUS communication protocol 3) Basic/Water control interface firmware design 4) Electric control interface firmware design • SKILLS REQUIRED (mandatory): • Firmware • embedded systems • c programming

Identyfikator projektu: 22321135

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49 ofert

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49 freelancerzy składają oferty o średniej wysokości €4 987 EUR dla tej pracy

@sagradoamicus

Hi I am experienced embedded system designer with more than 15 years of experience. I have the details of project and have a few questions to discuss before I can give you my final quote. Please get in touch if you are interested in working with me Regards

€3 000 EUR w 7 dni

4,8

(223 opinii)

7,8

@ppgjsc

Hi. I am very familiar for firmware and electric control and I have made them before. I have a rich experience of design and simulation about RF and electronic circuit using vivado sdk Cadence , Altium, ADS, HFSS ,CST and so on for 10+ years ago. I have rich experiences for microcontroller , FPGA, DSP and Arm such as zynq, stm32, pic, raspberry pi, arduino , pic and so on. I have many boards for them. Best Regards

€4 000 EUR w 7 dni

5,0

(24 opinii)

7,3

@miodragstajic

Dear Sir, I have analyzed your requests and we can provide you the full custom solution here, with all the details you want and high quality. I'm representing Falcons Interactive Ltd. and we did over 190 high-end Websites, apps, AAA and mobile games and software for worldwide publishers giving them much more than needed, having full infrastructure and expertise for making them, with over 80 employers, project managers and experts in all field of App development. We are specialized in advanced multimedia/visuals in the Apps, UI systems and overall App functionality backend, servers and optimized algorithms. With HQ in London, and developments in Belgrade, Hong Kong, Switzerland, Austria, we have experts in all fields App development, graphic designers, UI/UX, servers and backend and mobile options, IAPs, VR, AR, GPS and Map SDKs, Crypto, Cybersecurity, REST APIs, various SDKs, advanced networking and many others. We are providing 5 years of free maintenance and support on our productions, guarantying your best App development on Freelancer. Thanks, Miodrag Stajic

€40 000 EUR w 99 dni

5,0

(1 opinia)

7,4

@ITECH

Hi There, I am representing I-TECH. We have 15 years of R&D and customized electronics prototyping experience. We will write the firmware as described in the project post. If it is required to test the firmware, we will do prototyping and load the firmware to run the circuit. Please feel free to contact us. Best Regards, Shahbaz.

€5 000 EUR w 45 dni

4,8

(86 opinii)

7,1

@mbogdanp1

I worked on something pretty similar last year. I will deliver the project and fix any potential bugs that are identified in the first 3 months.

€3 600 EUR w 7 dni

5,0

(2 opinii)

6,6

@arrijal1992

Hello, I like the way you describe this project post. First of all I have been dealing with ST Microcontroller (STM32) since 2011, moving to STM8 isn't a big deal for me. I also Hardware design engineer who could design your Hardware for HVAC system. I have experience in various field, from hobbyst, Industrial, IoT, to Military application. The first Phase is hardware design, this phase take lot of time. at least 3 weeks. then I will supply to you hardware part after I test basic function of that board(GPIO,MODBUS Communication,ZCD,etc). Then I will programming it's firmware related to your specification. it should takes 2 weeks. Let me know your thoughts. let's discuss it over chat. Best Regards, Rijal

€4 000 EUR w 50 dni

4,6

(161 opinii)

7,4

@ahmad5857

Hi Sir, We are expert in MODBUS protocol on RS485. We are very expert in industrial control. lets talk to us on this project. We are professional engineers and developers who do such projects from the last 10 years. We offer you our skills for this project at very low rates comparatively without compromising the quality of work. Let me introduce you to our company TURKTRONICS. We are TURKTRONICS. We are team of professionals with 10+ years of experience in Circuit designs, PCB designs, embedded system solutions, mobile app development, programming and software development. We provide complete end to end solutions for all kind of development projects. IOT is our strong point. In this bid, prototyping and shipping cost is not included however paying extra slight of money to include prototypes. We have the manufacturing facility and we produce the very high standard PCB boards and send ready products to customers doorsteps via DHL. We care about our clients and help them to get out of any potential problem throughout the projects and also give post completion technical support if ever required. We are very much looking forward to hear from you on this in coming days! Cheers!!! Ahmad Lead Technical Engineer TURKTRONICS An Internet of Things Company !

€3 000 EUR w 7 dni

4,8

(45 opinii)

6,9

@AITSoft

Hello there, How are you doing?. I have read the description, I have great experience doing similar jobs related to these skills C Programming, Electronics, Embedded Software, Embedded Systems, Firmware. Right now I am placing a place holder bid, We will decide the price and time after discussion. Please start the chat so we can have detailed discussion. Thanks.

€4 440 EUR w 5 dni

5,0

(2 opinii)

5,9

@CoherentTech123

Dear Sir, Thanks for posting such a good embedded systems related Project. I am an expert with more than 15 years of experience in FIRMWARE Development, Engineering and Product design. I have worked in the past on several architectures including 8-bit, 16-bit and 32-bit. I have developed applications for Smart Grid, Wireless communication, medical and automotive. In the past I have worked on MODBUS (RTC and ANCII) protocols. I have also implemented M-BUS for flow metering and wireless M-BUS. I have read the details of your work and I am very excited to offer you my price. I can provide you all the milestones in only 2000 Euro. The break down is as under 1)“Hello World” STM-8 and peripherals (UART) ---------------------------------------------------------- 250 Euro 2) SLAVE MODBUS communication protocol ------------------------------------------------------------- 250 Euro 3) Basic/Water control interface firmware design ------------------------------------------------------ 250 Euro 4) Electric control interface firmware design -------------------------------------------------------------- 500 Euro 5) MODBUS MASTER PC Software --------------------------------------------------------------- 250 Euro TOTAL :1500 Euro

€3 000 EUR w 45 dni

4,7

(70 opinii)

6,3

@nijiworks

Hello, We are a Turkey-based company and we offer product design & development, electronic development, plastic injection molding, and mass production services to our customers. We provide turn-key solutions. We can help you to develop your firmware of your product. Please contact me to talk more about your project. Best Regards Ates Gokdemir Nijiworks Ltd.

€5 000 EUR w 30 dni

5,0

(5 opinii)

5,9

@dsuclla88

Estimado señor, He leído con detenimiento su requerimientos, estoy seguro de poder realizar su proyecto, pues tengo experiencia documentada con la red MODBUS. Tengo un laboratorio completo con todo lo necesario para empezar lo antes posible. Comprendo bien los controles y alarmas que solicita, ya he realizado proyectos con stm8 y stm32 antes usando las librerías nativas. Cuento con la librería para Modbus que usted necesita y sin duda puedo agregar los registros, será compatible con cualquier maestro Modbus como plc entre otros. También puedo realizar la parte del diseño de la PCB sin lugar a dudas. Sientase en confianza para solicitar mayor información y muestras de proyectos pasados con comunicación Modbus y microcontroladores STM. agradezco su atención y aguado sus contentos y/o preguntas. Saludos cordiales.

€4 444 EUR w 25 dni

5,0

(18 opinii)

5,9

@Programmer59

Hello Sir, We are team of professional developers with having more than 7 year's experience in this field also I read your project description and We are interested in it but still we need some more information Can we discuss the project ? We are waiting your response Thank You Regards Jawad Ahmed

€6 000 EUR w 7 dni

4,6

(56 opinii)

6,6

@oobretenov

very interesting project. which IDE need to be use for development?

€4 600 EUR w 50 dni

5,0

(33 opinii)

6,0

@NewFuture338

ello, I like the way you describe this project post. First of all I have been dealing with ST Microcontroller (STM32) since 2011, moving to STM8 isn't a big deal for me. I also Hardware design engineer who could design your Hardware for HVAC system. I have experience in various field, from hobbyst, Industrial, IoT, to Military application. The first Phase is hardware design, this phase take lot of time. at least 3 weeks. then I will supply to you hardware part after I test basic function of that board(GPIO,MODBUS Communication,ZCD,etc). Then I will programming it's firmware related to your specification. it should takes 2 weeks. Let me know your thoughts. let's discuss it over chat. Best Regards, RuiHua

€4 000 EUR w 7 dni

5,0

(19 opinii)

5,8

@AndreySer

Hello , i've done about 3 projects which based on the modbus communications for the GAS-OIL and industrial automation areas and i've a lot of experience in emulation of work hardware systems in the Proteus software. So i'm sure i'll able to write firmware for the STM8 and test it at about 99% on my side. Also if you need i may to guide you in schematic, pcb routing and component's choosing questions. For firmware writing i may use Eclipse / Keil / IAR / winIDEA ..

€3 000 EUR w 18 dni

5,0

(11 opinii)

5,5

@ArtShidlovskiy

Our team has extensive experience in the design and manufacture of various devices. There are no questions on your project, we can do it. Do you need to develop iron, or is it ready? cost and term are approximate. We will be happy to help you.

€3 333 EUR w 15 dni

5,0

(5 opinii)

5,1

@avto35217

hello,dear. I have read all your requirements for 'Firmware development - CLEVER PCB' and I fully understood it. I've already done this kind of project before. I am confident and I am sure that I am able to finish this project. Please come in contact with me, so that we can discuss any details via chat:) Skills: C Programming, Electronics, Embedded Software, Embedded Systems, Firmware

€4 444 EUR w 15 dni

5,0

(4 opinii)

4,2

@vtlabs

Hi I'm an Electronic Engineer (Honours degree level) with almost 5 years experience developing embedded systems. I'm also an Automation engineer with a Rockwell Automation Certificate, you can learn more about me from my Freelancer profile. Kind regards V.T

€4 000 EUR w 15 dni

3,1

(62 opinii)

7,1

@arjun366333

Ready to start the work to create the Firmware development - CLEVER PCB with all requirement , please check my recent similar work,we can discuss more over chat, thanks regards kanta singh.

€3 500 EUR w 7 dni

4,4

(4 opinii)

5,0

@MrDmytro

Hello. I am a systems engineer with 20 years of experience. My projects that most fully reflect my experience with those things that you need: 1 - temperature control system of a power reactor of a thermal power plant. I used MODBUS (hardware implemented via the RC485 interface). I can provide a photo report after agreement with the user (very strict NDA). 2 - A device for transcranial stimulation of the cerebral cortex (I have experience with high-voltage devices. I can provide some photos on demand) 3 - control unit for the hydraulic control valve of the hydraulic transmission based on the STM8 microcontroller (I can program for the STM8). I can provide a photo on demand. And much more. A few details about myself. Systems Engineer, 42 years, work experience - 20 years. Higher technical education. Over the past four years, a full-time freelancer. Well equipped laboratory. Currently free to work.

€4 000 EUR w 30 dni