I contacts test system
Бюджет $25-50 CAD / час
Job Description:
write source or help trouble shoot using debugging tools our existing code.
C (Arduino IDE) but prefer to use Atmel Studio
Using ATmega328 or ATMega168P QFP CPU
Monitor 5 I/O pins - to determine if a switch contact is open or closed
Closed is Good, open is alarm condition
Also use A/D to drive an LM84T temperature sensor and measure once per minute
Alarm condition if temperature is over 75C
once per 5 minutes - use serial lines to operate and send a message using HopeRF RFM95 LORA radio module. (this is a 'status ok' message)
We have library for this radio module
When alarm conditions occur (contact open or temperature >75C) alarm message sent.
Message payload is 6bits - we have this defined.
Device sends messages only
1650mAH battery - target 5 years life
We have this all working but there is a bug causing CPU hand and battery drain.
considering fresh start as back up while we continue to troubleshoot the code we have.
Power source 3V non rechargeable lithium battery or Thionyl Chloride
22 фрилансеров(-а) готовы выполнить эту работу в среднем за $36/час
We are a team of Electrical and Electronics engineers, we have successfully completed 1000+ Projects for multiple regular clients from OMAN, UK, USA, Australia, Canada, France, Germany, Lebanon and many other countries Больше
Hello, I have read your all requirements that you want a test system I am experienced in ATmega328 and ATMega168P QFP CPU I can do this project as per your desire hope we can discuss more project details deadline, and Больше
Do I assume that the hardware is ready and all the nodules interfaced? I have good knowledge in all these modules. Place send me your curcuit schematic to start with. Do you use arduino ide?
Hello, I read through the job details extremely carefully and I am confident I can exceed your expectations. I have long experience with right skills to work on this project. I have received strong feedback on the abil Больше
Hello pdr1966, I m an Architect/Civil Engineer/BIM/CAD Expert and will offer you the Best Discount. You can pay me a reasonable price + Good Review only. I want to review your I contacts test system plans/sketches,/i Больше
Dear Client. I am very pleased to bid for your project. This project caught my interest and I am 100% confident that I can complete your project. I have experience in hardware and embedded systems design and can help y Больше
To fix the battery drain issue, you need to identify the code that is causing the excessive power consumption issue and optimize it. There may be a loop or function that is running continuously and consuming a lot of p Больше
I can make this project. I have sound experience in micro controller based programming and peripheral interfacing over 13 years. I live in Toronto. Also have experience in electronics circuit design and development , t Больше
Callback function on lora lib ? When is status ok, hi "says " arduino , ok let's go ? Also,maybe make time laps response ? When 1000ms we send mesange and arduino go sleep ? I need see the project
I'm an embedded software engineer who have valuable experience specifically in this kind of project and you can check my profile and take a look at my resume to make sure. During my professional experiences, i have lea Больше