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18 Solenoid Output Control Circuit By 6 RF Transmitters

i need a control system with the following guidelines. i need the winner of the bid to keep in mind cost effectiveness in design, build, and component cost.

the main idea is to control 18 solenoid valves by means of 6 RF transmitters.

- power input is from a 12vdc 10 amp psu

- solenoid valves are rated at 12vdc 1.4 amps

- i want to use cost effective FET's or similar to control the valves. (no relays wanted)

- the solenoids produce a lot of heat at 1.4 amps so i would like to PWM control them, they are to be soldered to the pcb for cooling instead of heatsinks

- at any point of given time there will always only be a maximum of 6 valves on at a time

- each 3 valves are grouped to be controlled by a single momentary push button RF transmitter which is detailed below

- each time the button on the transmitter is pressed a valves in the corresponding group will be turn on, so press it once, A turns on, press it again, A turns off and B turns on, press it again and B turns off and C turns on, press it again, C turns off, press it again, A turns on and the cycle continues

- i need the ability to operate multiple of these system in the same room

- 18 2 position terminal blocks for each valve (-/+ for each valve)

- 1 2 position terminal block for the power input

- temperature sensing and output control for a fan. i don't have a fan picked out yet so i need it designed in a generic way. ill probably use some sort of 12 or 5 volt computer case time fan.

- the transmitter is to have to use the following components

- CR2032 coin battery, with a selected battery clip that i have

- SMD push button

- ATTiny24a-ssu for the logic

- maximum of 1" by 1.5" PCB board size

- RFM23B-868-D as the transmitters

- a single RFM23B-868-D as a receiver for the main control board

(i have schematics already, i just need your thoughts or suggestions and pcb layout done)

Firmware and MCU

- a main atmel microcontroller to handle everything, needs to big enough to handle all the input lines for the RF module, and enough output lines for the valves, i don't want to use any shifts, i'm trying to keep the BOM down as much as possible.

- handle decoding the RF inputs and PWM'ing the 18 valve outputs.

- when there is no activity for 2 hours, disable all valve outputs

- if a set temperature is reached, turn the fan output on, if the fan does its job and set internal temperature is reached again then turn the fan output off, if the fan does not do its job and internal set temperature is exceeded then shut down all valve outputs until another set temperature is reached again. this is as a safety procession

- firmware written for the transmitters

- components must be easily obtain from [url removed, login to view] with source sustainability in mind

- SMD is not a must nor is through hole, the idea is to just keep the cost down and make it work, but also keeping in mind easy components for easy of assembly

project milestones will based on you supplying me with schematics, pcb layout, firmware and my confirmation in steps that we can discuss

PLEASE READ ALL REQUIREMENTS CAREFULLY, I NEED SOMEONE PROFICIENT AND COMFORTABLE WILL EVERY ASPECT AND FEATURE OF THE PROJECT

if you have any further questions please feel free to ask, however i tried to cover most of the important requirements, other than that im very flexible and open to design and routes to take

Beceriler: Elektrik Mühendisliği, Gömülü Yazılım, Mikrodenetleyici, PCB Düzen, Kablosuz

Daha fazlasını görün: volt com, sustainability job, rf circuit design, pcb layout guidelines, pcb circuit board design, open source pcb layout, mouser com, module assembly, microcontroller job, i.s.d. 191, i need power point on my computer, free circuit design, easy wireless, design to power point free, component board, circuit design free, circuit design com, atmel job, at and t wireless, assembly board, computer assembly, free design power point, design power point free, VOlt, valves

İşveren Hakkında:
( 3 değerlendirme ) Gainesville, United States

Proje NO: #4393073

19 freelancer bu iş için ortalamada 716$ teklif veriyor

MikroStar

hi, i am an electrical engineer and an embedded system designer. i can help you with this project.

in 65 gün içinde3500$ USD
(42 Değerlendirme)
6.3
MIKY4227

Hi i can help you, see portfolio for samples of works

in 10 gün içinde525$ USD
(19 Değerlendirme)
5.1
betaenergy

Dear Sir, We are Reserach and Development company whose working area are : -Digital Motor Control -Analog Design -Electronic Design -Power Electronics -PCB design -Embedded system -Matlab -Simulation of ha Daha fazlası

in 3 gün içinde200$ USD
(14 Değerlendirme)
4.7
yhaat

Hi, I can do this job.

in 15 gün içinde500$ USD
(10 Değerlendirme)
4.6
theenggprojects

I am ready to start the job .....

in 20 gün içinde500$ USD
(10 Değerlendirme)
4.2
shahbaz1980

Hi check PMB

in 30 gün içinde500$ USD
(6 Değerlendirme)
3.3
GlobalElectronic

Professional PCB designer offer you professional help.

1 gün içinde 177$ USD
(1 Değerlendirme)
2.7
RightAndAbove

We can help, please see PM.

in 60 gün içinde4290$ USD
(1 Değerlendirme)
2.2
noumanmehtab86

i can help.

in 3 gün içinde400$ USD
(2 Değerlendirme)
1.8
DamithaKD

Read Pm sir :)

in 3 gün içinde275$ USD
(1 Değerlendirme)
1.8
ammiran

I can help you.

in 3 gün içinde150$ USD
(1 Değerlendirme)
1.2
VinayakSJ70423

Hi, I have 3 years of experience working with Atmel controllers. I have worked with a lot of rc-servo based robot systems, so PWM control is a question of least worry. Also i have designed several wireless systems usin Daha fazlası

in 20 gün içinde300$ USD
(0 Değerlendirme)
0.0
plus20db

I would integrate some off the shelf transmitter dongles with some custom electronics. I've designed solenoid PWM driver circuits in the past, and would integrate on a PCB with receiver IC and antenna.

in 15 gün içinde247$ USD
(0 Değerlendirme)
0.0
trosich

Hi, it's SHARENG, an electronics design team in Spain. I's able to make it.

in 30 gün içinde550$ USD
(0 Değerlendirme)
0.0
javier1788

I did proyect like this. See my portfolio and check the PM.

in 20 gün içinde450$ USD
(0 Değerlendirme)
0.0
hadded

i m computer engineer and done a lots projects like this,,

in 7 gün içinde200$ USD
(0 Değerlendirme)
0.0
ganeshkumarsw

Hi Check your pm..

in 7 gün içinde220$ USD
(0 Değerlendirme)
1.6
embfocus

we are a embedded technology consulting providing solutions in industrial automation,power and automotive electronics.

in 30 gün içinde374$ USD
(0 Değerlendirme)
0.0
prathvishkumar

Dear sir, We can work on your project as per project discription using atmel microcontrollers with all necessary components along with source code,hex code and hardware schematic for project thank you

in 14 gün içinde200$ USD
(0 Değerlendirme)
0.0
rahulranjan949

Lets start the work

in 30 gün içinde250$ USD
(0 Değerlendirme)
0.0